Just a heads up, if you remove the cap from the coolant reservoir tank it will relieve the pressure, then put the cap back on so that it doesn't drain out. Otherwise, awesome walk through! Thanks!
Would you recommend to start with the temperature sensor, or go straight to the thermostat? I haven’t gotten a check engine light so I can’t pin point what it truly is with a code reader thanks. I was thinking of just starting with the sensor first, but maybe through your guys experience you can share what works best.
I just replaced the sensor and the problem continued with the coolant fan running and the temp gauge stuck on 160°. I drove it about eight miles, still no change. Disconnected the negative connection on the battery, waited about 10-15 minutes to reset the computer, hooked it all back up and everything is now working perfect! Thanks guys you saved me a bunch of money and downtime at the dealer.
Both of these videos were a live saver! Coolant temp sensor went bad yesterday and I was freaking out because I just had a lot of work done on my 2016 sierra a week prior. Mechanic quoted me close to $500 after diagnosing over the phone and didn’t even mention the replacing the thermostat. Glad I found you after I google my trucks issues. Thanks!
I have a 2014 4WD, V6, EcoTec3, 4.3L. The fan wouldn't turn off one day but the next few days everything was fine. About a week later it started staying on again and the check engine light turned on. My temp gauge read zero when it stayed on. Only thing that popped up was thermostat when I checked for codes. Found this video and it helped so much! Fixed it and after a couple starts the check engine light went off by itself, no battery reset needed. For anyone about to do this with this model, I needed less than a gallon of 50/50 dexcool and went a little over the cold full line because the hoses were empty.
Great video. Gave me the confidence to do it myself and everything turned out great. I have never considered myself as a “car guy” so being able to get a project like this done was awesome. Thanks for your help and thanks for the video! My vehicle was a 2014 GMC Sierra and everything worked great.
Hey Fredrich, I really appreciate you taking the time to leave a comment. It's really cool to hear that I was able to break this fix down and explain it we'll enough to get you motivated. I'm glad that I was able to help you out!
It was super easy I got it done in 30 minutes work was like 10 of actual work putting everything together again and then let it sit 20 minutes without the battery to reset the system and bye bye problems
Same problem fans would not go off. Changed sensor still fans kept running. Took fuses out for fans to keep from running battery down. decided to start pickup and see if guage would move without fans and the temp. rose so I knew thermostat was ok. Took cable off battery to reset computer and put fuses back in and connected cable back to battery. started engine things are great! Thanks for the video!
Hey Jhianna! I'm glad we could help. 🙂 If you have any more issues for some reason, I've linked our trouble shooting video below: 👇 ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Awesome video. Just a heads up on filling it. Turn your gallon around to where the spout is on top so air will easily flow in and not cause the coolant to change the flow too much and have a steady pour
Thank you! Was taking my granddaughter to a basketball game tonight, got there and this happened to me. Of course I didn't have any tools with me or I would've just disconnected the battery until after the game. Ended up missing the game but caught your video here. Thank you so much. I am of limited mechanical ability these days as my hands don't want to cooperate with me!🙃
I'm sorry about the game, but at least we could help you. If you have any issues, check out our troubleshooting video: ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Hello Brothers! Really liked the explanation on this video, I'm a guy who loves cars and now: houses. I would like to see house content more on you guys channel.
Hey! We're trying to bring more house stuff. Editing the videos is becoming more challenging for us. We have about ten in the works and can't wait to get them uploaded for you
Thanks brother this video was very clear and simplified. I’ve been servicing my moms 2016 Silverado and this video made everything very easy thank you.
Shout out to you! Job well done. Changed it and fixed it. I made a booboo tho didn't clear the codes ha. But the thermostat was the fix after the sensor thank you!
The temp sensor video saved me $$$. After a month though the fan came back on so I’m going to replace the thermostat. My grands call me Granny the mechanic thanks to you. Do you have a video on replacing the shifter cable for a 2005 2500 Silverado? Thx so much.
Hello Linda! Before you try the thermostat, check out our troubleshooting video linked here: ua-cam.com/video/wed9eZxPwsQ/v-deo.html Disconnecting the battery may be all you need. However, we recommend replacing both the thermostat and the sensor at the same time. As for the 2005, we don't have a video on that, but if we ever get the opportunity to work on one, we will make a video for you!
Great video and detail. This video shows 30 views and only 10 likes and I've seen this anomaly on other videos so, I'm curious why would that many people not take the time to like? Just my curiosity. LOL
Hey David! Thanks for watching the video and taking the time to leave a comment. We released the video about three hours ago, so we're thinking that has something to do with the low view count. Feel free to share it with your friends to help us bump that view count up! 😂😆
Some people may not have UA-cam account and they can’t live a like or comment but they can still see the video. Great video, right on point. Thanks for sharing your knowledge # the brothers workshop.
I HAVE A 2015 CHEVY TAHOE, THIS VEHICLE'S LOOKS GREAT, BUT THEY'RE A PIECE OF JUNK, THEY NEED PARTS AFTER PARTS.!! I USED TO HAVE A 2004 CHEVY TAHOE 300K + MILES ON IT !! IT WAS AWESOME!! MY HUMBLE OPINION, THE NEWER THIS VEHICLE'S ARE, THE 💩.!! I DO NOT RECOMMEND THIS TO ANYONE!! B.T.W. AWESOME VIDEO BRO.!!
People people, if you turn the coolant bottle sideways it’ll flow out nice and smooth with no mess!! A little trick I learned from watching Stacey David. 😆
What most of these vids on this topic don't mention is that you'll need to use your code reader to reset the error code once you are done, or disconnect the battery for a few minutes. Failure to do so meant in my case at least, the problem was unchanged. Even thought there's no CEL, there is still a code.
What's up Stuart?! I have to say you are wrong, we go over disconnecting the battery in this video: ua-cam.com/video/wed9eZxPwsQ/v-deo.html. This particular video is one in a three part series linked here: ua-cam.com/play/PLnPXcXYmgiuvbA7f_Zot4ScG1DJ7QJgO8.html. As for disconnecting the battery, yes you are correct. If you don't, the truck will act as if the issue was never fixed.
Tus videos me an allí dado mucho y gracias a eso e reparado algunas cosas de mi camioneta con tu Ayuda por estos videos que as echo… gracias 🙏. Great job
Love your vids... I'm not having an issues with the fans running after I turn off the truck... I'm having issues with the fans turning slowly... I replaced the sensor and those fans took off crazy fast for I start, then the fans went back to running slow 🤦🏼♂️
just experienced this fan issue on my 14 sierra. my immediate thought was temp sensor or thermostat. did research and it looks to be it.. BUT in my case what i did was while driving i popped in my obd2 elm bt adapter, and literally cleared the code while i was driving with TORQUE lol and the fan stopped and guage dial corrected itself to the actual current temp. Just in case these videos dont help the issue try that, i literally stopped the fan and corrected the problem with a simple fault clear. I'm sure theres still an underlying problem which i'll do the sensor and thermostat if this happens again, but i took a lazy man approach today.
Resetting the codes will only stop this issue for a short time. It will always come back. That is because you have not fixed the root of the cause. You have to replace the temperature sensor and the thermostat, then reset the computer and the issue will be fixed. Please watch all three of our videos on this topic.
You just motivated me to do it . thanks for the awsome video. I thought it was like operating a heart but it actually seems pretty simple thanks a lot dude
I got it done just had to disconnect the battery to reset the system , before the reset the fans were still turning on and a check engine was lit , after everything cleared and it's running perfectly now thanks a lot .
Same problem, change the sensor, did not fix the issue. My AC stopped when the fan would not shut off. The tire pressure for 3 tires were on as low on air [ they were around 30 lbs] about a week prior to the fan not shutting off. Check engine lite came on a day later than the fan wouldn't turn off. I disconnected the battery for about 15 minutes and after putting it back on, everything worked correctly. Fan shut off correctly, tire sensors stopped showing low air, ac blew cold air and check engine lite went off. It has been about a week now and no issues [hopefully] yet.
This issue does not throw a code. That tells me your truck is having a different issue, or you may have multiple issues. If the fan issue continues, I've linked a troubleshooting video below: 👇 ua-cam.com/video/wed9eZxPwsQ/v-deo.html
My 2015 Yukon Denali did this I changed the sensor worked fine now it’s doing it again to the point I have to disconnect battery to turn the fans off but will now change thermostat to see if it fixes it perfectly btw vehicle has 111k miles on it
I have a 2017 duramax had the code p0128 a couple times changed the coolant temp sensor a couple times and worked for short time. Could one or both of the thermostats be bad? The truck has a hard time coming up to temp also
It's possible but the truck we are working on here in the video has a gas 5.3 V8. This fix works on all of the gas motors. I know you have a diesel, but it might be worth a shot. Please let us know how it goes.
@@TheBrothersWorkshop I forgot to say that the gauge would not move from 160 sometimes it would get a little past half but that’s it never to operating temp
Does losing that much of the coolant affect the AC performance? It gets 100+° where I live so the AC has to be top notch cold. Hence the reason I need my thermostat replaced to begin with cause my air doesn’t cool when it’s stuck open 😒
Hmmm. ok, having the issue everyone else is with fan on full blast and temp gauge not moving, so going to replace both thermostat and coolant sensor and erase all codes. One question thou....picked up both parts yesterday, but online showed 2 thermostats and I picked up the 194 degree one. I see this uses 207 degree! Online shows optimal 195 to 205 and why i picked lower of the two, but also suggests 207 is factory stock and helps run better and more efficient!! Soo, which should i use and 194F or return it for the 207F unit?!??
Awesome video! But if you happen to come across this situation check this out. Chevrolet and GMC owners!!! After an oil change my cooling fans kept running! With the exact same symptom this video is showing! Remember every time you get an oil change they top off all of your fluids. After my investigation I noticed my coolant reservoir was over filled! Well, I Drained the excess coolant out with a spay bottle sprayer and this problem was solved!!! Of course, the mechanic denied my reservoir was not the problem. They do not teach these young kids small remedies in Tech school! Everyone know you should not over fill oil, transmission and coolant reservoir! Coolant reservoirs has a cold fill line very easy to see!!!!! SMH.
Hey Corwin! That's a really interesting issue. It makes sense. There are several people out there who have replaced the parts and the issue continues. I bet this might be their problem.
hey, i've got this recurring issue with the fan not turning off.. and now my ac isn't blowing cold air at all.. are these problems related? and do you think solving one, might solve the other?
Yes, they are the same problem. This video is one of a three part series. I've listed our update video below. It will explain everything and how to fix the issue: ua-cam.com/video/7gKbLHhD1cw/v-deo.html
Ok I was wondering if that sensor was only thing But I guess not so I’m doing that job and did you have a problem after the thermostat was done just curious and please let me know ok thanks .
I have a 95 Trans am. My fan stays on all the time. I checked relays (all good!), changed coolant temp sensor and fans still on all the time. Do you think changing the thermostat might help ?
I would think about looking into the temperature sensor first, and if that didn't work changing the thermostat. Not sure how it's set up, but it wouldn't hurt. Typically I like to change both out at the same time. Realize we did separate videos here, but it's something I would do at the same time.
Can I suggest you do an edit on your other video about the temperature sensor. Would have been good info to have a month ago when i changed it. Thanks for the vids.
Hey Lefty, we didn't understand what your asking us to do. However we have two other videos on this issue, we've listed them below: 👇 ua-cam.com/video/aJeksrxcCDI/v-deo.html ua-cam.com/video/wed9eZxPwsQ/v-deo.html
My truck just started doing that tonight I'm replace the sensor and the thermostat do I need to bleed the valve or can I just loosen the radiator cap to let the pressure off
Hey! If you watch the full video, you'll see that I made the mistake of not opening the lid to let pressure out. It won't hurt to do either, but prepare for a mess if you don't. If you have any issues, this is our troubleshooting video: ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Is it possible this issue and the temp sensor can make my truck not have cool air? Sometimes the fan runs on and it takes a while until the AC kicks in real cool, other than that I drive for like 20 mins for it to hit good, It’s not broken but just delayed. I just actually fixed my AC line about a year ago so that should be good. Im curious if the truck thinks the engine is overheating with the sensor broken, and using all my cooling towards the engine and not in the truck.
From what you are describing it doesn't sound like the same thing. Id you have a 2014-15 Silverado and Sierra, they are know for AC issues. It could be a number of problems.
Yes it did! We also made several other videos about this same issue, so you can check out the other videos if you feel like you need more information or detail.
@@TheBrothersWorkshop so it worked since tuesday and today on my way home from work the AC stopped blowing cold. The gage is still working and no fan now but AC stopped
I know this fix works, but you have to replace the temperature sensor as well. Before you do anything, watch all three of the videos we made about it. I have linked the playlist here for you: Radiator Fan Won't Turn Off: 2014 - 2019 Silverado & Sierra: Bad Coolant Temperature Sensor and Thermostat Replaced: ua-cam.com/play/PLnPXcXYmgiuvbA7f_Zot4ScG1DJ7QJgO8.html
Tengo una pregunta,espero y me puedan responder pronto,tengo una Chevy silverado 2017 y el marcador de la presión del aceite ,,estando en stop marca 20 y corriendo marca normal ,,?eso es malo o bueno o normal?
This is a three step process. Please watch the three videos in this playlist to see how this problem is fixed: ua-cam.com/play/PLnPXcXYmgiuvbA7f_Zot4ScG1DJ7QJgO8.html
I loved your videos they helped me replace the temperature sensor and now I just replaced the thermostat but when I tried to start the truck it won't start - I double checked I put everything back together correctly but it's saying stalibrik and the headlight is flashing so I was wondering do I have to reset a code or something?? Did you have to reset a code after replacing the thermostat?
Hey, I'm not sure what you did to have that outcome but it shouldn't do that at all. I recommend double checking that you followed the video correctly and didn't disconnect anything that should not have been. Then try disconnecting the battery and reconnecting it. That should reset the computer and fix the issue. ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Great video and explanation, I have replaced the sensor first but did not fix the prob. My question is: Have you fixed the main prob. after the thermostat replacement? If yes I will do the same. Sincerely,
This video is one of three we have explaining how to fix this issue. Below are the other two videos: Troubleshooting video: ua-cam.com/video/wed9eZxPwsQ/v-deo.html Temperature Sensor Replacement Video: ua-cam.com/video/aJeksrxcCDI/v-deo.html
@@TheBrothersWorkshop Thx for your reply buddy, I'll first start try to troubleshooting before replacing the Thermostat which I already purchased but not used yet. I'll update you. Whish you all the best and HNY 2023.
@@TheBrothersWorkshop Hi again, good news. I did the troubleshooting before i try with the thermostat, started with the battery first and it worked great 😀. I’ll return back the thermostat and get my money back. I really appreciate your support. Keep it up buddy. Sincerely, A follower from Bahrain
If you change thermostat and Sensor and the fans are still running high afterwards unplug and plug the battery that did the truck for me was working good after
No, everybody seems to think that you need to reset the computer, but even after resetting the computer this issue will start up again. Please watch all three of our videos on this topic, and you'll be able to fix this yourself!
I had a bad thermostat that did the same thing on a 2002 V6 Camaro. Why do the fans come on when the engine isn't overheating due to a bad (stuck open) thermostat?
I have had this problem before it will come and go I recall changing either the sensor or the thermostat 2 or 3 years ago I just can't remember which now I'm having the same problem again I watched the sensor video I disconnected the sensor and plugged it back in to go pick up a 19 mm deep socket and by the time I bought it and turned on the truck the fan stopped blowing running so loud and turned off as I turned off the truck do you think the sensor might have just been loose or do you recommend me replacing the thermostat? Sorry for the long comment but I'd appreciate some feedback!
Thanks for leaving a comment! I believe the issue has to do with both parts. It seems like if only one is replaced, than the issue comes back. However, I have linked our troubleshooting video below for you: 👇 ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Not much info on the best temp for thermostat. But I was wondering if a 194 would have any benefit. I noticed the local parts place has a 194 as well as the 207. Did the 207 on the wifes yukon but was thinking for my silverado be good idea to use 194
I'll be honest, we went to the parts store and gave them the make, model, engine, and year. They have us the thermostat made for my truck. There are three different motors in the 2014-19 Silverados and Sierra trucks. I would use the thermostat recommend for your trucks engine. Let us know what you choose to do and how it turns out!
So did this solve the problem? I'm having the exact same problem and replaced the sensor only to have the problem come back a few days later. I just want to make sure that before I order the thermostat that this will solve the problem.
Replacing both the thermostat and the sensor does the trick. This is one of three videos in this series. I have a troubleshooting video as well. You need to watch all of them. They're linked below: 👇 1. Temperature sensor video: ua-cam.com/video/aJeksrxcCDI/v-deo.html 2. Thermostat replacement video: ua-cam.com/video/WvLyBM8FHdM/v-deo.html 3. Troubleshooting video: ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Is this the same for a 6.2 on a 2016 yukon Denali? I Replaced my temp sensor and Unplugged the battery for 30 minutes everything worked for 24 hours and now it’s back to not getting any reading from from the temp gauge on the dash and the fan running constantly and turns off about 5 minutes after I shut the truck off…. Do you think it’s a Faulty sensor or thermostat issue? I only used a small amount of Teflon tape on the threads so it’s really not affecting the sensor imo.
From our experience this seems to be a cross platform issue. This issue occurs on the 4.3 V6, the 5.3 V8 and the 6.2 V8. It doesn't seem to make a difference if the vehicle is a truck or SUV. So, if you changed the sensor and that did not fix the issue, you will need to change the thermostat. I've linked two videos for you below. The first explains the issues that you're describing. The second shows in detail how to replace the thermostat. 👇 Troubleshooting 👇 ua-cam.com/video/wed9eZxPwsQ/v-deo.html Thermostat Replacement 👇 ua-cam.com/video/WvLyBM8FHdM/v-deo.html
@@TheBrothersWorkshop - Thank you! I actually spent most of last night on the forums reading and doing some more reading and a few people suggested you need to clear any stored codes ( EVEN IF THEY DON"T SHOW A CHECK ENGINE LIGHT ) I did not have a check engine light on but when I hooked up my scan tool I did have 2 stored codes for Low Temp Sensor reading. I cleared those codes and the fan instantly turned off - one which will remain permanent until the engine completes enough cycles in normal range. I just went for a drive for about 10 miles and no fan running and the temp is reading correctly on the cluster now. Fingers crossed that was the issue if not I will definitely move on to replace the Thermostat. Thanks again!
Was your check engine light on at all when this problem accrued.??? I’m having this issue as well changed the sensor disconnected the battery it was fine for a week and now it’s starting back up again. Brand new truck. No check engine light came on my dash but problem still is there.
No, the check engine light does not come on. Sounds like you need to replace the thermostat. Do that and it should take care of your problem. The video I linked below should help you: 👇 ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Truck started doing this last night. Engine light isn’t on tho. Should I still change the sensor or should I go with the thermostat first? Did this issue also affect your AC?
Hey Edwin! I recommend changing both the sensor and the thermostat at the same time. It's easier to do both at the same time. I'm not sure about the AC but it definitely affected the heater. Also, the engine light does not come on during this issue. I forgot to mention that in the video.
Hey man I just changed the thermostat and the coolant temperature sensor and the fans are still running full speed when I turn the truck off. Any idea what I should do now? Gauge still doesn’t move from 160
I replaced my temp sensor, and it stopped the issue for a weeks then it happened again. I am about to change my thermostat, do I also need to change the temp sensor again?
My 14 sierra 5.3 is acting funny, the temp gage when driving is only going to second mark above 160 (bigger line between 160-210, in other words it’s in the middle) however recently I’ve noticed when I sit at idle for several minutes the gage will go to 210. But when go back to driving is falls back down. I’ve watched a couple videos now and done some reading. Is it the thermostat that needs replacing or something else? Thanks
Hey, I'm not sure what your issue is. Is your truck over heating, or the gauge just fluctuating? Either way this video explains how to change the thermostat, not diagnose an issue, other than the one explaining the beginning.
@@TheBrothersWorkshop not over heating. Just not getting to 210 mark when driving. Only noticed it the other day when I was sitting in a parking lot for like 30-40 minutes at idle looked down an low an behold it was reading 210. Finally back on the road an it dropped back down. I think the thermostat is sticking truck has 150k
@@jew0182 I have a 2015 Mine did this for about a month then Finally it stopped going back up to the 210 it would go slightly above the 160. Then christmas evening I got off my truck and the fans stayed on I took out the 40 fuses to get them to turn off and today Monday I changed both the temp sensor and thermostat today based off their videos and My gauges work, and the fans turned off. I lost about a half coolant jug during the process as I once done I opened a new jug and used half to replenish back to full
In this series, after replacing the sensor and the thermostat did you have to drain the coolant reservoir and radiator? Or did you only drain and fill the coolant reservoir, only asking since I'm going to take on this repair this week! Thanks in advance!
Hey Sebastian! We did not drain any fluids. We only topped off the coolant because we lost some during the replacement of the sensor and thermostat. Just make sure you use the correct coolant that the vehicle needs.
Hey Forrest! Changing the sensor and the thermostat fix this issue. Follow the steps in this video and the one I have linked here for you: ua-cam.com/video/WvLyBM8FHdM/v-deo.html
@@TheBrothersWorkshop when i replaced the thermostat on my bmw you have to bleed the system before starting. Granted it was located differently wasnt sure if it was needed on this because of the coolant loss
You have to replace both the sensor and the thermostat. Please read the description for a troubleshooting videos. Everything is laid out down below. We've not had any issues since replacing both the sensor and the thermostat together.
Yes, we did a video about how that's done. Avoid teflon tape on the sensor. I've had no issues, but some people have. The video is linked here: ua-cam.com/video/aJeksrxcCDI/v-deo.html
Great video. This is what happened to me and my 2018 Tahoe. I was coming home and all of a sudden I looked down and I noticed the temperature was around 180° which is really low and I was towing a boat. So pull off the Thruway Because it was my exit to get home. Thank God, and I noticed that my fan was running super high on the radiator like really high. So I get home and get in the driveway. It’s still running crazy high. I put on one of those meter things that I have and it said the temperature in my coat was 145°. I’ll let the car cool down I take it out and everything‘s fine again temperatures back up to 210 like it usually is everything works fine. Do you think I should replace both the sensor and the thermostat?
Thanks. I thought I was in the clear but I told the boat up somewhere yesterday and I had white smoke coming out of the dipstick so I’m gonna take my vehicle in and get it checked. I have a feeling that when I was driving down the Thruway for so long with that coolant sensor not working I just got a feeling that might’ve fried my seals or something like that so I’m hopeful that the damages are done on my 2018 Tahoe I’ll keep you posted. I’m gonna bring the truck in and see if I can get a leak down test done. I have somebody professional look at it. Thanks for your advice.
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Radiator Fan Won't Turn Off? GUARANTEED FIX: ua-cam.com/video/7gKbLHhD1cw/v-deo.htmlsi=1SAIlKtEZ5ZQri7w
Just a heads up, if you remove the cap from the coolant reservoir tank it will relieve the pressure, then put the cap back on so that it doesn't drain out. Otherwise, awesome walk through! Thanks!
You're correct!
Do I need to put the cap back on as soon as I disconnect the hoses?
@@jacobstewart4738 before you remove the hoses. I only lost about 1/4 of a gallon changing my thermostat
Hey Jacob! You can but it won't matter. we've done this a few times on different trucks. No matter what you do, you'll loose a little fluid.
Would you recommend to start with the temperature sensor, or go straight to the thermostat? I haven’t gotten a check engine light so I can’t pin point what it truly is with a code reader thanks. I was thinking of just starting with the sensor first, but maybe through your guys experience you can share what works best.
I just replaced the sensor and the problem continued with the coolant fan running and the temp gauge stuck on 160°. I drove it about eight miles, still no change. Disconnected the negative connection on the battery, waited about 10-15 minutes to reset the computer, hooked it all back up and everything is now working perfect! Thanks guys you saved me a bunch of money and downtime at the dealer.
Glad we could help!
I had to do similar but with an OBD2 tool
Both of these videos were a live saver! Coolant temp sensor went bad yesterday and I was freaking out because I just had a lot of work done on my 2016 sierra a week prior.
Mechanic quoted me close to $500 after diagnosing over the phone and didn’t even mention the replacing the thermostat. Glad I found you after I google my trucks issues. Thanks!
I'm glad we could help out. If you need any help check out our troubleshooting video: ua-cam.com/video/wed9eZxPwsQ/v-deo.html
I have a 2014 4WD, V6, EcoTec3, 4.3L. The fan wouldn't turn off one day but the next few days everything was fine. About a week later it started staying on again and the check engine light turned on. My temp gauge read zero when it stayed on. Only thing that popped up was thermostat when I checked for codes. Found this video and it helped so much! Fixed it and after a couple starts the check engine light went off by itself, no battery reset needed. For anyone about to do this with this model, I needed less than a gallon of 50/50 dexcool and went a little over the cold full line because the hoses were empty.
Glad we could help!
Great video. Gave me the confidence to do it myself and everything turned out great. I have never considered myself as a “car guy” so being able to get a project like this done was awesome. Thanks for your help and thanks for the video!
My vehicle was a 2014 GMC Sierra and everything worked great.
Hey Fredrich, I really appreciate you taking the time to leave a comment. It's really cool to hear that I was able to break this fix down and explain it we'll enough to get you motivated. I'm glad that I was able to help you out!
You gave me courage rn too imma go to autozone and get the part to do this before lunch
It was super easy I got it done in 30 minutes work was like 10 of actual work putting everything together again and then let it sit 20 minutes without the battery to reset the system and bye bye problems
Thank you for this! I have limited mechanical ability but you helped me save money, fix the problem and (most importantly) not create a bigger problem
Same problem fans would not go off. Changed sensor still fans kept running. Took fuses out for fans to keep from running battery down. decided to start pickup and see if guage would move without fans and the temp. rose so I knew thermostat was ok. Took cable off battery to reset computer and put fuses back in and connected cable back to battery. started engine things are great! Thanks for the video!
Glad we could help!
Hey brother’s, easy fix but it’s nice to see that you did it 😀 complete with explanation, great music and shooting arrows 😂
Henk! I'm glad you enjoyed the video. The arrows are the best part in our option. 😂
Watched this video and the sensor video and I just finished fixing my truck. Thank you for the very detailed video
Hey Jhianna! I'm glad we could help. 🙂 If you have any more issues for some reason, I've linked our trouble shooting video below: 👇
ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Awesome video. Just a heads up on filling it. Turn your gallon around to where the spout is on top so air will easily flow in and not cause the coolant to change the flow too much and have a steady pour
Thanks bro
This and the coolant temperature sensor video really helped me out. Thanks for the great content 👍
Glad we could help out!
Thank you! Was taking my granddaughter to a basketball game tonight, got there and this happened to me. Of course I didn't have any tools with me or I would've just disconnected the battery until after the game. Ended up missing the game but caught your video here. Thank you so much. I am of limited mechanical ability these days as my hands don't want to cooperate with me!🙃
I'm sorry about the game, but at least we could help you. If you have any issues, check out our troubleshooting video: ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Awesome video, thanks alot , watching all the way from SOUTHERN CALIFORNIA
How's the weather out there?! It's really cold over here. Glad we could help out. Don't forget to disconnect and reconnect your battery!
Hello Brothers! Really liked the explanation on this video, I'm a guy who loves cars and now: houses. I would like to see house content more on you guys channel.
Hey! We're trying to bring more house stuff. Editing the videos is becoming more challenging for us. We have about ten in the works and can't wait to get them uploaded for you
This just started happening to my truck right now I will change out the thermostat good video you make it look easy thanks
Glad we could help!
Great vid just changed therm and tcs on my 2015 silverado 1500👍🏿
That's bro! Glad you found it helpful.
Thanks brother this video was very clear and simplified. I’ve been servicing my moms 2016 Silverado and this video made everything very easy thank you.
I'm glad we could help! Thanks for watching. Do you want to see videos about anything else? We are looking for some ideas.
Shout out to you! Job well done. Changed it and fixed it. I made a booboo tho didn't clear the codes ha. But the thermostat was the fix after the sensor thank you!
Glad we could help! 🙌
The temp sensor video saved me $$$. After a month though the fan came back on so I’m going to replace the thermostat. My grands call me Granny the mechanic thanks to you. Do you have a video on replacing the shifter cable for a 2005 2500 Silverado? Thx so much.
Hello Linda! Before you try the thermostat, check out our troubleshooting video linked here: ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Disconnecting the battery may be all you need. However, we recommend replacing both the thermostat and the sensor at the same time. As for the 2005, we don't have a video on that, but if we ever get the opportunity to work on one, we will make a video for you!
Did replacing the thermostat fix your issue?
That was a great video. Very informative and lots of details. I really appreciate you sharing this. Thanks so much.
No problem at all. Glad we could help.
Hell yeah changed the remote gauge . I'll change this next. Thanks 😊🙏
Great video and detail. This video shows 30 views and only 10 likes and I've seen this anomaly on other videos so, I'm curious why would that many people not take the time to like? Just my curiosity. LOL
Hey David! Thanks for watching the video and taking the time to leave a comment. We released the video about three hours ago, so we're thinking that has something to do with the low view count. Feel free to share it with your friends to help us bump that view count up! 😂😆
Some people may not have UA-cam account and they can’t live a like or comment but they can still see the video.
Great video, right on point.
Thanks for sharing your knowledge # the brothers workshop.
I HAVE A 2015 CHEVY TAHOE, THIS VEHICLE'S LOOKS GREAT, BUT THEY'RE A PIECE OF JUNK, THEY NEED PARTS AFTER PARTS.!! I USED TO HAVE A 2004 CHEVY TAHOE 300K + MILES ON IT !! IT WAS AWESOME!!
MY HUMBLE OPINION, THE NEWER THIS VEHICLE'S ARE, THE 💩.!! I DO NOT RECOMMEND THIS TO ANYONE!!
B.T.W. AWESOME VIDEO BRO.!!
People people, if you turn the coolant bottle sideways it’ll flow out nice and smooth with no mess!! A little trick I learned from watching Stacey David. 😆
Great tip!🙌
Great video. I will be doing this tomorrow.
Glad to hear it. If you have any issues check out our troubleshooting video linked here: ua-cam.com/video/wed9eZxPwsQ/v-deo.html
What most of these vids on this topic don't mention is that you'll need to use your code reader to reset the error code once you are done, or disconnect the battery for a few minutes. Failure to do so meant in my case at least, the problem was unchanged. Even thought there's no CEL, there is still a code.
What's up Stuart?! I have to say you are wrong, we go over disconnecting the battery in this video: ua-cam.com/video/wed9eZxPwsQ/v-deo.html. This particular video is one in a three part series linked here: ua-cam.com/play/PLnPXcXYmgiuvbA7f_Zot4ScG1DJ7QJgO8.html. As for disconnecting the battery, yes you are correct. If you don't, the truck will act as if the issue was never fixed.
What if I didn’t get any codes or anything? Bc my fan is just on and I changed the thermostat and the fan relay
Tus videos me an allí dado mucho y gracias a eso e reparado algunas cosas de mi camioneta con tu Ayuda por estos videos que as echo… gracias 🙏. Great job
this just happened to me 20 min ago.Thank god for this video brotha and Thank you as well..
Glad we could help. If you have any issues, I've linked our troubleshooting video for you below: 👇 ua-cam.com/video/wed9eZxPwsQ/v-deo.html
@@TheBrothersWorkshop Thank you👍
Needed to know if there was or wasn’t a gasket or silicone. Thanks for the great video.
Thanks for watching Willandro! Glad our video helped you out. 🤙
Love your vids... I'm not having an issues with the fans running after I turn off the truck... I'm having issues with the fans turning slowly... I replaced the sensor and those fans took off crazy fast for I start, then the fans went back to running slow 🤦🏼♂️
Hey David, that's an interesting problem. I wonder if it is related to the thermostat? I see you watched this video. Have you attempted to replace it?
@@TheBrothersWorkshop I've just returned from the zone with a new replacement and waiting for the engine to cool down before the swap
just experienced this fan issue on my 14 sierra. my immediate thought was temp sensor or thermostat. did research and it looks to be it.. BUT in my case what i did was while driving i popped in my obd2 elm bt adapter, and literally cleared the code while i was driving with TORQUE lol and the fan stopped and guage dial corrected itself to the actual current temp. Just in case these videos dont help the issue try that, i literally stopped the fan and corrected the problem with a simple fault clear. I'm sure theres still an underlying problem which i'll do the sensor and thermostat if this happens again, but i took a lazy man approach today.
Resetting the codes will only stop this issue for a short time. It will always come back. That is because you have not fixed the root of the cause. You have to replace the temperature sensor and the thermostat, then reset the computer and the issue will be fixed. Please watch all three of our videos on this topic.
New to your channel. Great video; just subscribed. Thanks for sharing your automotive expertise.
Thanks! 🙌
You just motivated me to do it . thanks for the awsome video. I thought it was like operating a heart but it actually seems pretty simple thanks a lot dude
I thought the same thing before I gave it a shot. You got it bro! 🙌
Got it done in like 10 minutes thanks to you 👏🏻👏🏻
I got it done just had to disconnect the battery to reset the system , before the reset the fans were still turning on and a check engine was lit , after everything cleared and it's running perfectly now thanks a lot .
Same problem, change the sensor, did not fix the issue. My AC stopped when the fan would not shut off. The tire pressure for 3 tires were on as low on air [ they were around 30 lbs] about a week prior to the fan not shutting off. Check engine lite came on a day later than the fan wouldn't turn off. I disconnected the battery for about 15 minutes and after putting it back on, everything worked correctly. Fan shut off correctly, tire sensors stopped showing low air, ac blew cold air and check engine lite went off. It has been about a week now and no issues [hopefully] yet.
This issue does not throw a code. That tells me your truck is having a different issue, or you may have multiple issues. If the fan issue continues, I've linked a troubleshooting video below: 👇
ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Awesome video, thanks for the detailed description, it was really easy to follow.
Hey Vinny! Glad we could help and thanks for the feedback!
Great video!
Thank you!
Nice information
Thank you! Is there anything else about these truck you would like to learn? I'm looking for video ideas.
Thank you so much!
No problem!!
My 2015 Yukon Denali did this I changed the sensor worked fine now it’s doing it again to the point I have to disconnect battery to turn the fans off but will now change thermostat to see if it fixes it perfectly btw vehicle has 111k miles on it
smart idea with the vice clamp.
Thanks!
Need to add always make sure to check the gasket, either replace with new one or reusing the old one
We did in the new video. It's being released soon.
Thanks!
No problem! Thank you! 🙌🙂
I have a 2017 duramax had the code p0128 a couple times changed the coolant temp sensor a couple times and worked for short time. Could one or both of the thermostats be bad? The truck has a hard time coming up to temp also
It's possible but the truck we are working on here in the video has a gas 5.3 V8. This fix works on all of the gas motors. I know you have a diesel, but it might be worth a shot. Please let us know how it goes.
@@TheBrothersWorkshop I forgot to say that the gauge would not move from 160 sometimes it would get a little past half but that’s it never to operating temp
Does losing that much of the coolant affect the AC performance? It gets 100+° where I live so the AC has to be top notch cold. Hence the reason I need my thermostat replaced to begin with cause my air doesn’t cool when it’s stuck open 😒
Hmmm. ok, having the issue everyone else is with fan on full blast and temp gauge not moving, so going to replace both thermostat and coolant sensor and erase all codes. One question thou....picked up both parts yesterday, but online showed 2 thermostats and I picked up the 194 degree one. I see this uses 207 degree! Online shows optimal 195 to 205 and why i picked lower of the two, but also suggests 207 is factory stock and helps run better and more efficient!! Soo, which should i use and 194F or return it for the 207F unit?!??
When in doubt, always go factory specific.
Awesome video! But if you happen to come across this situation check this out. Chevrolet and GMC owners!!! After an oil change my cooling fans kept running! With the exact same symptom this video is showing! Remember every time you get an oil change they top off all of your fluids. After my investigation I noticed my coolant reservoir was over filled! Well, I Drained the excess coolant out with a spay bottle sprayer and this problem was solved!!! Of course, the mechanic denied my reservoir was not the problem. They do not teach these young kids small remedies in Tech school! Everyone know you should not over fill oil, transmission and coolant reservoir! Coolant reservoirs has a cold fill line very easy to see!!!!! SMH.
Hey Corwin! That's a really interesting issue. It makes sense. There are several people out there who have replaced the parts and the issue continues. I bet this might be their problem.
hey, i've got this recurring issue with the fan not turning off.. and now my ac isn't blowing cold air at all.. are these problems related? and do you think solving one, might solve the other?
Yes, they are the same problem. This video is one of a three part series. I've listed our update video below. It will explain everything and how to fix the issue: ua-cam.com/video/7gKbLHhD1cw/v-deo.html
Should you change the temp sensor when you change the thermostat?
Yes
Ok I was wondering if that sensor was only thing But I guess not so I’m doing that job and did you have a problem after the thermostat was done just curious and please let me know ok thanks .
Good luck! 🤙
I really enjoyed your video. Great pouring job by the way. With rubber O ring gasket, no sealant is needed correct?
Hey Cesar! Tha ks for watching. We're stoked that you enjoyed our video. No, you won't need any sealant. The video is step by step instructions.
I have a 95 Trans am. My fan stays on all the time. I checked relays (all good!), changed coolant temp sensor and fans still on all the time. Do you think changing the thermostat might help ?
I would think about looking into the temperature sensor first, and if that didn't work changing the thermostat. Not sure how it's set up, but it wouldn't hurt. Typically I like to change both out at the same time. Realize we did separate videos here, but it's something I would do at the same time.
Can I suggest you do an edit on your other video about the temperature sensor. Would have been good info to have a month ago when i changed it. Thanks for the vids.
Hey Lefty, we didn't understand what your asking us to do. However we have two other videos on this issue, we've listed them below: 👇
ua-cam.com/video/aJeksrxcCDI/v-deo.html
ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Can I use a long extension instead of 3 small ones?.
.
.
.
Just kidding, great video brothers.
Appreciate it man!
My truck just started doing that tonight I'm replace the sensor and the thermostat do I need to bleed the valve or can I just loosen the radiator cap to let the pressure off
Hey! If you watch the full video, you'll see that I made the mistake of not opening the lid to let pressure out. It won't hurt to do either, but prepare for a mess if you don't. If you have any issues, this is our troubleshooting video: ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Is it possible this issue and the temp sensor can make my truck not have cool air? Sometimes the fan runs on and it takes a while until the AC kicks in real cool, other than that I drive for like 20 mins for it to hit good, It’s not broken but just delayed. I just actually fixed my AC line about a year ago so that should be good. Im curious if the truck thinks the engine is overheating with the sensor broken, and using all my cooling towards the engine and not in the truck.
From what you are describing it doesn't sound like the same thing. Id you have a 2014-15 Silverado and Sierra, they are know for AC issues. It could be a number of problems.
Wouldnt a stuck thermostat show a a code? Great video.
No, unfortunately we've never seen any codes. The only thing we see is the symptoms.
What size is the deep socket drive? 19mm?
Hi! My truck is doing the exact same thing! Curious if this fixed the problem. About to try it myself with your video and I am no mechanic 😅
Yes it did! We also made several other videos about this same issue, so you can check out the other videos if you feel like you need more information or detail.
@@TheBrothersWorkshop so it worked since tuesday and today on my way home from work the AC stopped blowing cold. The gage is still working and no fan now but AC stopped
Hey! This morning after I turned off the gmc Serra 2015 truck the engine fan stayed on. Do you think changing the thermostat would fix this issue?
I know this fix works, but you have to replace the temperature sensor as well. Before you do anything, watch all three of the videos we made about it. I have linked the playlist here for you: Radiator Fan Won't Turn Off: 2014 - 2019 Silverado & Sierra: Bad Coolant Temperature Sensor and Thermostat Replaced: ua-cam.com/play/PLnPXcXYmgiuvbA7f_Zot4ScG1DJ7QJgO8.html
@@TheBrothersWorkshop thank you so much
Hay I'm having the same problem did this fix it or was there more digging
Replacing the thermostat and the sensor fixed the issue.
Tengo una pregunta,espero y me puedan responder pronto,tengo una Chevy silverado 2017 y el marcador de la presión del aceite ,,estando en stop marca 20 y corriendo marca normal ,,?eso es malo o bueno o normal?
I'm sorry, but I don't know the answer to that. I would have it diagnosed by a local professional.
Did changing the thermostat stop the fan from running and the temp gauge to start working
This is a three step process. Please watch the three videos in this playlist to see how this problem is fixed: ua-cam.com/play/PLnPXcXYmgiuvbA7f_Zot4ScG1DJ7QJgO8.html
Thanks for the video! I changed the thermostat and sensor and fuses. I’m still having the same issue!! Help!
Here is our troubleshooting video: ua-cam.com/video/wed9eZxPwsQ/v-deo.html
My 2016 Silverado runs cool After installing Hypertech Max energy 2.0? Have you heard of changing the stat to a 180 degree stat? Thanks.
Hi Joe! We only install the recommended GM thermostat.
Thank you
I loved your videos they helped me replace the temperature sensor and now I just replaced the thermostat but when I tried to start the truck it won't start - I double checked I put everything back together correctly but it's saying stalibrik and the headlight is flashing so I was wondering do I have to reset a code or something?? Did you have to reset a code after replacing the thermostat?
Hey, I'm not sure what you did to have that outcome but it shouldn't do that at all. I recommend double checking that you followed the video correctly and didn't disconnect anything that should not have been. Then try disconnecting the battery and reconnecting it. That should reset the computer and fix the issue.
ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Did that fix the problem? I just changed my sensor over the weekend and am having problems again.
Replacing both the sensor and thermostat fix the issue. It's all spelled out in the video.
Those hose clamps lock themselves open if squeezed together enough.
Great video and explanation, I have replaced the sensor first but did not fix the prob. My question is: Have you fixed the main prob. after the thermostat replacement? If yes I will do the same.
Sincerely,
This video is one of three we have explaining how to fix this issue. Below are the other two videos:
Troubleshooting video:
ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Temperature Sensor Replacement Video:
ua-cam.com/video/aJeksrxcCDI/v-deo.html
@@TheBrothersWorkshop Thx for your reply buddy, I'll first start try to troubleshooting before replacing the Thermostat which I already purchased but not used yet.
I'll update you.
Whish you all the best and HNY 2023.
@@TheBrothersWorkshop Hi again, good news. I did the troubleshooting before i try with the thermostat, started with the battery first and it worked great 😀. I’ll return back the thermostat and get my money back.
I really appreciate your support.
Keep it up buddy.
Sincerely,
A follower from Bahrain
If you change thermostat and Sensor and the fans are still running high afterwards unplug and plug the battery that did the truck for me was working good after
Yep, we said it here... ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Made the job very easy but I have done both steps and I still have the same problem!
Hey Johnny, we're not sure what's going on with your truck. However, we've had no issues since replacing the thermostat.
Did you fix your problem ? I did both and mine still has an issue
@@GendersonHernandez I did end up fixing it I disconnected the battery for 10 mins.
My neighborhood mechanic told me that we need to reset something with a computer before we replace it. I think he tricked me.
No, everybody seems to think that you need to reset the computer, but even after resetting the computer this issue will start up again. Please watch all three of our videos on this topic, and you'll be able to fix this yourself!
As the fan stays high while with the temp reading at 160 are you guys also getting a check engine light on? because i am.
No we never got to check engine light. For your situation if you have a light, I would run the codes. You may have a different issue all together.
I had a bad thermostat that did the same thing on a 2002 V6 Camaro. Why
do the fans come on when the engine isn't overheating due to a bad
(stuck open) thermostat?
I wish I knew... 🤷
What size are the bolts to unscrew it ?
I have had this problem before it will come and go I recall changing either the sensor or the thermostat 2 or 3 years ago I just can't remember which now I'm having the same problem again I watched the sensor video I disconnected the sensor and plugged it back in to go pick up a 19 mm deep socket and by the time I bought it and turned on the truck the fan stopped blowing running so loud and turned off as I turned off the truck do you think the sensor might have just been loose or do you recommend me replacing the thermostat? Sorry for the long comment but I'd appreciate some feedback!
Thanks for leaving a comment! I believe the issue has to do with both parts. It seems like if only one is replaced, than the issue comes back. However, I have linked our troubleshooting video below for you: 👇
ua-cam.com/video/wed9eZxPwsQ/v-deo.html
@@TheBrothersWorkshop thanks man appreciate the reply and the videos liked and subscribed 🙏🙏🙏
Glad to hear that! 🙌🤙
Just wondering if the thermostat fixed your issue. Cause I'm having the same problem and have changed the sensor twice.
Yes, that's why we made the video. Check out our troubleshooting video: ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Not much info on the best temp for thermostat. But I was wondering if a 194 would have any benefit. I noticed the local parts place has a 194 as well as the 207. Did the 207 on the wifes yukon but was thinking for my silverado be good idea to use 194
I'll be honest, we went to the parts store and gave them the make, model, engine, and year. They have us the thermostat made for my truck. There are three different motors in the 2014-19 Silverados and Sierra trucks. I would use the thermostat recommend for your trucks engine. Let us know what you choose to do and how it turns out!
Yea I think it's made for the truck but maybe they toss them in if diffrent options are taken.
Hmmm 🤔 that's a good point. I'll have to look into that.
So did this solve the problem? I'm having the exact same problem and replaced the sensor only to have the problem come back a few days later. I just want to make sure that before I order the thermostat that this will solve the problem.
Replacing both the thermostat and the sensor does the trick. This is one of three videos in this series. I have a troubleshooting video as well. You need to watch all of them. They're linked below: 👇
1. Temperature sensor video: ua-cam.com/video/aJeksrxcCDI/v-deo.html
2. Thermostat replacement video: ua-cam.com/video/WvLyBM8FHdM/v-deo.html
3. Troubleshooting video: ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Is this the same for a 6.2 on a 2016 yukon Denali? I Replaced my temp sensor and Unplugged the battery for 30 minutes everything worked for 24 hours and now it’s back to not getting any reading from from the temp gauge on the dash and the fan running constantly and turns off about 5 minutes after I shut the truck off…. Do you think it’s a Faulty sensor or thermostat issue? I only used a small amount of Teflon tape on the threads so it’s really not affecting the sensor imo.
From our experience this seems to be a cross platform issue. This issue occurs on the 4.3 V6, the 5.3 V8 and the 6.2 V8. It doesn't seem to make a difference if the vehicle is a truck or SUV. So, if you changed the sensor and that did not fix the issue, you will need to change the thermostat. I've linked two videos for you below. The first explains the issues that you're describing. The second shows in detail how to replace the thermostat. 👇
Troubleshooting 👇
ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Thermostat Replacement 👇
ua-cam.com/video/WvLyBM8FHdM/v-deo.html
@@TheBrothersWorkshop - Thank you! I actually spent most of last night on the forums reading and doing some more reading and a few people suggested you need to clear any stored codes ( EVEN IF THEY DON"T SHOW A CHECK ENGINE LIGHT ) I did not have a check engine light on but when I hooked up my scan tool I did have 2 stored codes for Low Temp Sensor reading. I cleared those codes and the fan instantly turned off - one which will remain permanent until the engine completes enough cycles in normal range. I just went for a drive for about 10 miles and no fan running and the temp is reading correctly on the cluster now. Fingers crossed that was the issue if not I will definitely move on to replace the Thermostat. Thanks again!
Glad to hear you fixed the issue! Keep me updated if anything changes!
Funnels!
What's a funnel?! 🤔
Did that work I'm having the same problem nothing is fixing it. Replaced the thermostat and temp sensor
Reset the computer by disconnecting the battery.
Does it require programming to remove any code associated with it ?
As far as I know, there are no codes/indication lights. Check out.our troubleshooting video: ua-cam.com/video/wed9eZxPwsQ/v-deo.html
Disconnect the battery , guaranteed to stop the fan from running.The Smartass answer.
Sure is. Did you use this fix on your truck?
@@TheBrothersWorkshop I have not had the fan not stopping problem .freon leak problem at condenser I did have.
The freon leak may be part of the known condenser issue, if you have a 2014/15.
@@TheBrothersWorkshop 2015 Silverado, I had the condenser replaced.Known manufacturer defect on the condenser.
Was your check engine light on at all when this problem accrued.??? I’m having this issue as well changed the sensor disconnected the battery it was fine for a week and now it’s starting back up again. Brand new truck. No check engine light came on my dash but problem still is there.
No, the check engine light does not come on. Sounds like you need to replace the thermostat. Do that and it should take care of your problem. The video I linked below should help you: 👇
ua-cam.com/video/wed9eZxPwsQ/v-deo.html
@@TheBrothersWorkshop thank you appreciate the assistance I’m going to check out that video
Does this affect the ac not blowing cold to
Truck started doing this last night. Engine light isn’t on tho. Should I still change the sensor or should I go with the thermostat first? Did this issue also affect your AC?
Hey Edwin! I recommend changing both the sensor and the thermostat at the same time. It's easier to do both at the same time. I'm not sure about the AC but it definitely affected the heater. Also, the engine light does not come on during this issue. I forgot to mention that in the video.
Mine started yesterday
Engine light not on...replaced sensor...didnt fix...thank God I followed up on this video...changing t-stat today🤞
What size is that ratchet your using on the 3 that you unscrewed ???
That should be a #10 socket
@@christianbermudez5341
Thanks 😊
Hey man I just changed the thermostat and the coolant temperature sensor and the fans are still running full speed when I turn the truck off. Any idea what I should do now? Gauge still doesn’t move from 160
Try disconnecting the battery and resetting the computer. If that doesn't work, try removing the teflon tape from the sensor.
I replaced my temp sensor, and it stopped the issue for a weeks then it happened again. I am about to change my thermostat, do I also need to change the temp sensor again?
We did a video explaining everything. Watch this: ua-cam.com/video/wed9eZxPwsQ/v-deo.html
My 14 sierra 5.3 is acting funny, the temp gage when driving is only going to second mark above 160 (bigger line between 160-210, in other words it’s in the middle) however recently I’ve noticed when I sit at idle for several minutes the gage will go to 210. But when go back to driving is falls back down. I’ve watched a couple videos now and done some reading. Is it the thermostat that needs replacing or something else? Thanks
Hey, I'm not sure what your issue is. Is your truck over heating, or the gauge just fluctuating? Either way this video explains how to change the thermostat, not diagnose an issue, other than the one explaining the beginning.
@@TheBrothersWorkshop not over heating. Just not getting to 210 mark when driving. Only noticed it the other day when I was sitting in a parking lot for like 30-40 minutes at idle looked down an low an behold it was reading 210. Finally back on the road an it dropped back down. I think the thermostat is sticking truck has 150k
@@jew0182 I have a 2015 Mine did this for about a month then Finally it stopped going back up to the 210 it would go slightly above the 160. Then christmas evening I got off my truck and the fans stayed on I took out the 40 fuses to get them to turn off and today Monday I changed both the temp sensor and thermostat today based off their videos and My gauges work, and the fans turned off. I lost about a half coolant jug during the process as I once done I opened a new jug and used half to replenish back to full
In this series, after replacing the sensor and the thermostat did you have to drain the coolant reservoir and radiator? Or did you only drain and fill the coolant reservoir, only asking since I'm going to take on this repair this week! Thanks in advance!
Hey Sebastian! We did not drain any fluids. We only topped off the coolant because we lost some during the replacement of the sensor and thermostat. Just make sure you use the correct coolant that the vehicle needs.
@@TheBrothersWorkshop Awesome! Thanks so much!
Hey bro did this fix the problem with the thermostat we're having the same problem
Hey Forrest! Changing the sensor and the thermostat fix this issue. Follow the steps in this video and the one I have linked here for you: ua-cam.com/video/WvLyBM8FHdM/v-deo.html
do you need to bleed the coolant system before starting it?
I did not bleed the coolant system. Why do you ask?
@@TheBrothersWorkshop when i replaced the thermostat on my bmw you have to bleed the system before starting. Granted it was located differently wasnt sure if it was needed on this because of the coolant loss
@@TheBrothersWorkshop Im wondering if it’s necessary because my coolant is leaking from the thermostat throughout the bolts 😢 any advice?
Greasy easy walk through
Haha that's one way to put it! 🙌
I can’t seem to get the cover off as easily as you did in the video what am I doing wrong ?
Hey John, without being there it's hard to know what you are doing wrong. Just take your time and don't force anything.
You mentioned replacing the temp sensor fixed it for a short period of time. Did replacing the thermostat fix it? Have you had any issues since then?
You have to replace both the sensor and the thermostat. Please read the description for a troubleshooting videos. Everything is laid out down below. We've not had any issues since replacing both the sensor and the thermostat together.
GUARANTEED FIX: ua-cam.com/video/7gKbLHhD1cw/v-deo.html
Hey nice video man, would you also recommend replacing the thermostat sensor as well?
Yes, we did a video about how that's done. Avoid teflon tape on the sensor. I've had no issues, but some people have. The video is linked here: ua-cam.com/video/aJeksrxcCDI/v-deo.html
Great video. This is what happened to me and my 2018 Tahoe. I was coming home and all of a sudden I looked down and I noticed the temperature was around 180° which is really low and I was towing a boat. So pull off the Thruway Because it was my exit to get home. Thank God, and I noticed that my fan was running super high on the radiator like really high. So I get home and get in the driveway. It’s still running crazy high. I put on one of those meter things that I have and it said the temperature in my coat was 145°. I’ll let the car cool down I take it out and everything‘s fine again temperatures back up to 210 like it usually is everything works fine. Do you think I should replace both the sensor and the thermostat?
If you are having the issue described in the video, than replacing both the thermostat and temperature sensor is how you fix the problem.
Thanks. I thought I was in the clear but I told the boat up somewhere yesterday and I had white smoke coming out of the dipstick so I’m gonna take my vehicle in and get it checked. I have a feeling that when I was driving down the Thruway for so long with that coolant sensor not working I just got a feeling that might’ve fried my seals or something like that so I’m hopeful that the damages are done on my 2018 Tahoe I’ll keep you posted. I’m gonna bring the truck in and see if I can get a leak down test done. I have somebody professional look at it. Thanks for your advice.