Saturn Cooling Fan Troubleshooting
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- Опубліковано 16 жов 2024
- Saturn S-series Cooling Fan Troubleshooting
Disclaimer:
This video is not meant to be a definitive how to.Always consult a professional repair manual before starting your repair.I am not responsible for any problems that you might incur by watching or following this video.Follow at your own risk.
Thank you. My daughter has been having cooling issues for several years. It would overheat and boil over whenever she was stuck in traffic and had to drive slowly. She could never hear the cooling fan come on. Your test of simply disconnecting the temperature sensor and having the cooling fan come on was an epiphany. --- If the fan comes on, it's the sensor. If it stays off, It's likely the fan or relay.
It was the $12 sensor.
Thanks Richpin, your videos have saved me much grief owning two Saturns (SL2, SW2). You are right to suspect the sensor (themistor) and connector. My fan in the SL2 would not come on until the temp gauge was past 3/4 scale. Replaced the sensor and the fan comes on just a needle-width of half scale now. My Bluetooth OBD2 module to tablet shows temp is 100C at halftemp gauge scale, fan comes on at 105C now. One third scale normal temp needle position shows 88degC. New sensor measured 2.13Kohms at my room temp, old sensor measured 2.5K ohms at room temp (17 percent difference). Sensor ohms decrease with increasing temperature, so the old sensor could not get low enough in ohms to tell the EMC to turn the fan on, even though the gauge would read close to normal 1/3 scale most of the time. Just like a resistor in an old tube radio, these thermistors age and go out of tolerance over time. Open circuit test must be a default "fan on" condition for the EMC logic. I gave both the coolant sensor and air inlet sensor connectors a shot of DeOxIt D5 contact cleaner, although both looked OK visually. I did pickup a new connector. Turns out I did not need it in the vehicle, but necessary for bench testing. A 2-pin PC header connector may fit the sensor pins, I'm guessing .080 spacing...
Hopefully this info may help others with coolant sensor and fan issues. The other post about checking overflow cap good advice as well...
Thanks again....
Edit from My previous reply. Did the test, no fan. Have voltage at the plug. Went to the yard this morning, got a cooling fan for $20. Plug it in on my valve cover to see if it came on. Nothing. Well, it might help if the plug was in all the way. Fixed that problem, started it up again, Yee, Haw ! We have a cooling fan ! Bad move putting it on the valve cover to test it. It almost took off but the connector kept it on the cover. Lol. Anyway, perfect diagnosis doctor ! Hopefully that's why the A/C compressor kept kicking on and off every 15 seconds or so, because it wasn't detecting a cooling fan. My gauges showed the system was full. Hopefully that's the fix as well and will save me from having to replace the compressor and the hassle .
Thanks again Richpin! This solved my problem. It's almost to easy of a diagnosis thanks to your channel.
Glad i could help.
Thank you for this! My saturn overheats if I'm in traffic and this pointed me in the right direction.
That's what my Saturn is doing
You are a great instructor. Thank you
Great videos!! I tested the fan, relay ect. All good. When I disconnected the temp sensor plug from the sensor, the fan does come on. I replaced the temp sensor and the connector... same issue still. The fan won't work when plugged in to the temp sensor. New thermostat, radiator ect. Any other ideas? I'm desperate at this point. Thanks
I just came back because of this issue, idk what it is just keeps happening
Great videos. You've helped a lot of people
Thanks richpin, you saved the day again, best saturn resource on the internet
Thank you Ron.
@@RichpinTv SaturnFans (Saturnalia) is gone now so us high mileage “diehard Saturn holdouts” NEED YOU MORE THAN EVER!!
Is the A/C and the fan functionality interdependent? So, if the A/C is not working (needs servicing) the cause of the fan being inoperable?
I ordered the temp sensor and new radiator (leaking) but you saved me the worry about the PCM and VSS ....thank you so much for this video :).
Rick thank you for all the video s you have done and will they are very helpful.
Excellent video , thanks for the help 👍
Well looks like I will be trying this tomorrow. Turning on AC doesn't turn my fan on, so I guess I will try to force it on by disconnecting the connector. All in all though, I enjoy owning a Saturn, they are cheap and easy to maintain.
You def kno what ur talking ab.this video came soo helpful thank you soo much. Keep makeing great video
you just saved me a lot of money! side note, weird issue I still have is the radiator fan only turns on when I have the A/C button on with the fan setting at any level except off. I thought using the AC was usually something that adds heat, but weirdly my radiator fan will kick right on when I turn on the AC only, I also tested it with the temp sensor unplugged and the AC button off, and it would not turn on. Then with or without the temp-sensor plugged in, it would only turn on once I turned on the AC.
Im wondering if anyone knows if saturns have some kind of bypass where the AC motor automatically turns on the radiator fan, it would make sense since the AC draws heat and the radiator fan might naturally engage with AC on? Any thoughts? I am pretty sure my temp sensor is bad, but even with it unplugged the AC engages the radiator fan.
Here's a tricky one for you, I have a 97 SW2 that if you unplug the sensor the fan comes and when you test the power and ground it test good and when you also ohm out the sensor it's good so I replaced the sensor just because I had removed it and the fan still doesn't come on and it over heats any ideas? Oh and great videos very informative thank you
I wired my fan straight from the battery to the toggle switch inside the car to manually turn the fan on and off, but I hadn’t watched the previous video. Someone else had that problem and tried to wire the fan correctly to one of the fog lights, bad idea. The toggle switch worked so far.
Very helpful. Thank you so much for this post!
hey Rick thank you for all the video s you have done and will they are very helpful. I have a 95 Saturn sw2 obd 1 system will this test help has well if the older models? I believe they should engine looks the same. plus I have a rattle noise coming from engine when there's a load putting into drive and reverse any suggestions thank you
Thanks..I almost bought the whole cooling system!
Lol, Thanks again!
Very helpful. Thank you so much. 🤜🤛
NOTE:
My 1995 SL2 has 2 Temp Sensors by each other! Evidently this changed to 1 sensor on newer models.
The top sensor(SU1131VC) is for the dash gauge reading and the bottom sensor(WTC1231) is for the Computer/Cooling fan to come on temp.
Our problem was the cooling fan not coming on and the radiator overheated at McDonald's.
Luckily it doesn't seem to have damaged the engine as we stopped right away.
Disconnecting the lower fan sensor(open circuit) does not trigger the fan to come so a jumper wire placed inside the disconnected connector's 2 holes(close circuit) probably would.
Needle nose pliers were needed to squeeze the connector to remove.
Be ready with the new sensor before removing the old one because some coolant does leak out.
We wrapped the sensor threads with a few wraps of teflon tape since it did not come with a paste. Use a 13mm deep socket. Don't over tight, these sensor metal cases are wimpy.
We just put a new sensor in and idled the car till the temp gauge was a bit over half and the fan finally came on as it should now.
We had previously disconnected the fan plug and hard wired from the battery to the fan motor to make sure the fan was still good and it was.
The 2 sensors look almost exactly the same but the plug grooves on the sensor is a male like bump for the bottom sensor where for the top sensor it is like a female 2 grooves together.
The probe part of the sensor that goes in the block is like a brass where the Oem were like a plastic.
The old one was the Oem with 130,000 miles on it.
Take care
Great video, thank you so much.
Glad you enjoyed it!
Excellent info. Thanks
Rich, unfortunately I ended up braking the connector from the sensor attempting to test this on my 97 SL2. The fan came on but I am unable to reconnect it to the cooling temp sensor. I may have also damaged the sensor as the gauge reads at the halfway mark. Is this going to be an expensive fix if taken to a mechanic? Thank you.
Dorman makes a nice little kit to repair a bad coolant temp connector it is Dorman 645-900
@RichpinTv do you have a video on how to change the connector?
What if you had this issue, the fan comes on when you disconnect as you have shown but you literally went and bought a new sensor and still have this issue. And yes I checked the connector and it looked very clean. So I'm at a bit of a loss. I can try replacing the connector, the fuse and relay are both good too so it's all I know to do...
Fuse box or fan maybe both
Wish I still had my Saturn. :(
Chris Freemesser ikr great gas mileage 25 bucks I’ll get ya a full tank that will last a full week and a half depending on the commute, hence why I decided to keep mine for as long as I can. (2001 Saturn SC2) still driving mine in 2019 🤙😁❤️
@@ivexXturbo 315000 on mine never broke down and original clutch
@@ivexXturbo Still driving mine. She runs like a champ (DOHC) and at 266,000 she still gets 40 mpg. But I do a shitload of coasting with the 5spd. I’m on my 2nd clutch.
I got a 2005 saturn vue and fan is stuck on high power. I replace resistor,tempature sensor,and thermostat. resistor was definitely bad. fan comes on high and low when you put power to relay. I also tried ecu relearned it and same issue. any help would be greatly appreciated
I have the same problem.. All my relay is good..i change the cooling fan sencor..fan still.not working.. But when i run wires from the fan. To battery..fan is working..i think i will try your way..thank you..
Thank you Rich. Great video.
Noticed when I disconnected the sensor on my wife's 2004 ION (2.2L, sensor in back) fan did not come on and the dash gauge did not work either. Plugged back in and gauge works, fan still not coming on. Did I miss the sensor that I really need?
I’m not getting power from the connector, checked the fuse ok not sure about the relay. What else might be causing it?
My wouldn't engage at all. Bought one fan motor and put it in and it worked, but the car instantly overheated for the third time despite having a now new fan motor, she overheated. And now she will no longer start. Any ideas on what the deal is?
Awesome video ,thank you!
I unplugged the connector and that activated the fan. I replaced the sensor and plugged the connector back on, and the fan doesn’t turn on when the engine temp gets real high. Do you think this means the connector is bad?
So how do you know the connector is carrying amps to run the fan motor with out stressing is and looking to see if the voltage drops?
Thank you, Rich!
My pleasure!
Go to the junk yard and get a coolant reservoir cap from another Saturn, 15 psi written on the cap. I had some baffling problems with the cooling system, turns out it was the reservoir cap. If the cap doesn't hold to the right pressure anymore the boiling point of the coolant will decrease. It will boil over before your cooling fan ever comes on and you will think your car is running hot because you will smell the hot coolant escaping out the lid. Then the engine will overheat when enough coolant escapes. The boiling point of a liquid goes up under pressure so when the lid fails the coolant will boil at a cooler temp, like I said, before the cooling fan even comes on, once it boils it is gonna have to escape and it will probably come out of the reservoir cap. I troubleshot the whole cooling system with its electronics. Then I went to the junk yard to grab a few temp sensors and its connectors. I threw a radiator cap in my pocket just for the hell of it. I put the new lid on and turned the connector to the temp sensor 180 degrees and reconnected it. I waited for the engine to heat up with anticipation and a prayer. When it started to rise to the point it would normally boil and come out the lid it didn't, and when I smelled the engine it didn't smell that hot. At about 9/16 to 5/8 on the temp gauge to my joy the fan came on. The temp dropped to normal in mere seconds, victory. I thought at first turning the connector on the temp sensor had done it but then as I thought about it I figured it didn't matter which way you connect the connector. Long story short if your lid is not holding to the 15 psi written on the lid you will see these symptoms: the temp gauge will rise above the normal operating temperature, when it reaches half way it is close to boiling already because the lid is not holding the pressure required to raise the boiling point, the temp may drop back down temporarily a few times if you are starting and stopping, it will go up when you stop and down when you go. But if you stop long enough or park the car the car will begin to heat up, the temp will go just past half way and the coolant will start escaping the lid. The temp will jump around pretty good as pressure is released and then builds and so on. So obviously you are losing coolant in the process so your coolant will be going lower. You will wonder why your fan never came on when your car was apparently overheating even though the temp only made it a little past half way. You will wonder if maybe the gauge is wrong, maybe the temp is hotter than it says. So really the car is not overheating, of course you smell the boiling coolant escaping the lid and pouring on the ground but that is because it has boiled at the lower temp due to the failure of the lid. So get a new lid.
thank you for taking the time to explain. I will try this, I am having the same symptoms. I will also reply with results when I get around to it.
@@JoshHopkinsYT any results? Getting this problem now
@@SimbaUchihaa I don't quite remember. It does seem like my reservoir cap leaked but I think i had a small leak in the radiator too and also around the same time the coolant resirvour sensor was giving me false low coolant warnings
@@JoshHopkinsYT I'm using the dorman reservoir tank, I'm not sure if the sensor is brass. My car only seems to want to overheat when the AC COOLING fan is on during idle, and I eventually get the message saying "COOLANT," but it goes away after I turn the ac off while driving. The rpms eventually start flunctuating during idle.
Hey Rich my son just bought a 98 sec. Gen Saturn and someone has cut the wires going to the temp sensor so the car is running horrible. So the temp sensor is still in the motor with the connector clip to it but the wires are cut right after where is snaps in. I was wondering if you could tell me where the connector leads run to. I can't find any other wires that are cut so I dont know where to reconnect the wires to the harness. Any help would be very much appreciated thank you
Rich can a ecm be checked with a multimeter and on what setting ohms continuey,if there is no power to a particular fuse or relay on the box how do u disassemble the fuse box to find the problem and fix it
I have not tried this test yet but the fan in my Saturn quits working when freon gets low, what's the connection? Replaced the temp sensor, but did not check the connector.
Video helped a lot but got any clue what’s wrong with my AC blows cold every now and then I can only blow and stay cold at night but during the day it could go off like a small medium cold
Perfect video thanks👍🏾
What do I do if the car won't start when the connection is off the sensor. I did just recently change the sensor but not the connector.
Thanks! You really helped me out!
Glad to hear it!
how do you remove the clip from the motor? do you pry that tab with a flathead?? I don't want to break the clip
im working on a saturn sw1 with a 1.9 engine and i pulled the wires off the temp sensor and then started the engine but the fan did not kick on, then i put a ground to the relay then the fan kicked on..what do you think problem is, may be ecm?
Hi rich I have a Saturn 2000 ls12.2 liter engine and can’t figure out why fan turns on when vehicle cold start. My fuse box has no relay for the fans but runs on 30 amp fuse.prior to getting this car it had a overheating problems and the owner said that water pump not working and so forth.I changed the water pump, replaced the thermostat,replaced the sensor and the overheating light is off but the fans turn on cold start. And last a tool sign is on my dash. Need help so my Saturn can get on the road.
Richpin for the win!
I have a Saturn like the one on the video and I replaced the cooling fan motor cuz it was shot and I replaced the coolant temp sensor and my Saturn still over heats, could it be the wires for the coolant temp sensor? I looked at the plug and I didn't see any corrosion. How much voltage should the coolant temp sensor plug put out??
On that plug is it a hot and ground that plugs in the fan
Thanks that was helpful
Glad i could help.
nice work Rich !
Stupid question, but is there a trick to getting the sensor connector to come off?
Is there any videos you made for 1994 and earlier models of sl2 cars? Mine seems to be different in some ways from later then 1st gen models sadly😭
Hey Rich thanks for making these videos. What if the fan will NOT come on when the sensor is unplugged? We tested the motor & it works, it's only a year old. We've got 14.5 volts going to the fan when the sensor is unplugged, but it won't hit a lick. Is that the sensor? thanks
i had same issue replaced sensor didnt fix it
We were Not sure what it was, we were leaning towards the temp sensor, but we got lucky. After we basically gave up for the day, we put it all back together & it worked. Must have been a bad connection somewhere, but I never noticed anything. I always try to use Plenty of electrical grease; Garner Bender/GB Oxgard w/ zinc on the Inside of connections, & a dielectric grease on the outside. Use a toothbrush so u don't get quite as nasty & you can work it into the area better. I also cleaned that tiny connector & the temp sensor connection w/ CRC spray electronic cleaner then put the oxgard on w/ a toothbrush. Good luck, wish ya' the best.
Dear Rich: New fan, new temp sensor, new switch. Fan won't still come on, is it my relay. Did the unplug the sensor test fan runs. Please help
1998 sl2 , runs ok until the gauge goes to have way then the car shutdown and will not start until the car cools off the electric fan does come on only one time then when it gets to have way again it's shutdown any answers thanks.
On my 97 Saturn SL1. The cooling sensor is new. The fan is new. The fan comes on when I disconnect the wire from the engine cooling sensor. But the fan still does not come on when the car gets hot, in the way it is normally set up to. I have to connect the fan directly to the battery, to have it running when the car is in use. Or have the ECS wire disconnected, so it will come on. But then I get a service engine soon light come on for that. Which I have to clear later.
I've got a 2002 and the fan didn't come on when I removed the sensor and there's no current when I tested the plug. Any idea what do do next?
Bil Thompson if you even still don’t know, since it’s been a year, check the fuses on it to see if any are burnt out
If there's no voltage, then either the fuse or the *relay* are suspect.
While I had the fan connector off, I would jump 12V to the fan just to see it spin up. Just sayin'...
Hi Rich, nicely shot video. Question: if you remove the CTS connector to turn-on the fan, then how can a dirty/corroded CTS connector prevent the electric fan from turning on? It seams that removing the connector from the CTS causes an open the circuit and isn't that what a corroded CTS connector would do?
I am presuming what happens with a corroded connector is the computer still sees resistance to not turn on the fan but it is incorrect.
Great stuff as always Rich. My daughters 96 SL2 is having an issue with the electric door locks were they are chattering (locking unlocking) constantly. I pulled the relays for the time being and figure one of the switches in the doors is bad. You ever troubleshoot that issue before?
All the ones i worked on never had this problem so i never got to troubleshoot.
SH72 i have also had the same issue with my 98 SL2 and found the door unlock switch was damaged. I have young kids and they pushed to hard and broke the switch. I replaced the switch and the issue was resolved. Good Luck
Replace the switch on the door. It's a common problem With a plastic part breaking. Get the switch on ebay for $15.tip:replace both as the other will break soon
What would you suspect is the culprit is just the opposite was happening. In that, as soon as one starts the car, the radiator fan comes on immediately, even in winter and the engine totally cold. Would the coolant temp sensor be the chief suspect? Also, would you expect any current to be detectable at the connector if the engine was cold and the engine not running? I would appreciate you insight on this. Thanks Ron
I would take a close look at the coolant temp sensor.
New water pump, thermostat, temperature sensor and cleaned the corroded sensor connector. The temperature gauge now seems accurate and the temp warning light no longer is on. The problem is the cooling fan runs when the climate control fan is all the way down, but engages when a higher fan speed is selected. Even at cold start up.
I mean disengages when a higher fan speed is selected
So this might be unique for me, but if everyone else replaced all their parts and still have issues, check your battery's terminal bolts in the trunk. Mine was stripped some time ago and someone decided not to tell me so i've been busy chasing this problem not realizing that all it was, was an electrical/grounding issue. Yikes.
love my saturn !! thanks bad fan
I have a similar problem on mine Buick century It wasn't working unless i put on the ac or defroster i replaced it now same thing but when I start my car n drive it the gauge goes to hot baffles by this.but no check engine light on.
So Rich, Question,,, what if any would be the adverse affect to just leaving the CTS unplugged, the fan would only run while the engine is running right!??
( 96 SL2 DOHC) I did all the tricks,, used the AC button, till I couldn't keep freon in it anymore,, hot wired the fan,, but did no good in the winter time! Kept me in warm up mode! So ended up, running a 30 amp toggle up next to my console, wired through a 30/40 amp relay, back down to the fuse box and to the fan! So now I have more control over, cooling the engine down, and it not continually running burning my gas up!!!
Only thing is,, I don't recommend this for everyone!! I pay way more attention to my gauges than the average person,, so ....
Plus I know my driving ,, and usually don't need it on the highway,, anyway.. mainly in town>> Good Luck!!
On your 96 i think the coolant temp sensor is very important because the computer needs to know the engine temp to get the fuel deliver correct.
If you had just turned the AC on wouldn't the fan come on automatically?
I have a saturn vue 2009 that's been giving me this problem. But I need help finding the Coolant Temp Sensor
My 04 Saturn ion overheats when idle for too long, or stuck in slow moving traffic. It cools back off when I get to about 3rd gear (between 30 &40 mph). I've checked all the fuses, relay, flushed the radiator hose.. Basically beginner chick fixes. I don't know what I need to do next to figure out what the problem is. What should I do? What should I check? And can you please be extremely descriptive, I'm trying to learn how to do these things and need help. Please help me learn how to fix my car.
When the engine is overheating does the cooling fan come on.
richpin06a
I'm going to be 100%honest with you.. I'm behind the wheel in traffic and I can't tell if it runs or not. When I flushed everything and changed all the fluids, filters, fuses, relays etc. I cranked the car and turned on the air; the fan didn't immediately turn on so I gave it a little push and it started running. When I turned the car off the fan sounded and looked like it wobbled as it stopped.
quick question rich my fan on my pickup is always running. I had a cooling system that was undercooling. I changed the thermostat and now the temp gauge goes up, but fan is always running even after trucks been off for 8 plus hours. I was thinking of changing the cooling temp sensor, and giving the cooling system a flush. I'm guessing a good sensor unplugged like you said would turn your fan on, so a bad sensor would keep it on.
or maybe I need to get in there and give it a push and make sure it's making a connection
What if there wasnt voltage at the fan plug with the connecter unplugged from sensor
doese the saturn sl have a resistor because teh fan doese not come on unless ac is on
A possible better way would be to use a 21 watt 12v bulb instead of a multimeter, some voltages dont actually have any current capacity, a load is needed, and its really visual :-).
Do you know if the sensor is like the old type that just switches on at a threshold temprature or is it a fancy pants variable resistance thermister?
Im just being nosey :-D
I was going to use my test light for this video but it went pop and the light went out.I am pretty sure the cts is a thermister.
Now thats a classic "Sods law", when you need it is the time it will pop lol :-D.
What if I've changed the temp sensor and it still won't come on ?. Mine only runs when it is disconnected from the sensor . I have already checked and cleaned the connector .
In my 02' Saturn sl the coolant fan seems to only come on when the A/C is on. if I disconnect the electrical connector at the ECTS the fan comes on as well. I replaced the ECTS, and it still does not come on. The temp gauge at the middle or slightly over and the fan still isn't coming on. Is that normal?
nothanksgoogleplus I'm having the exact same issue have you figured out what the problem was?
Excellent
I'm having the same issues with my car. I've taken it to the same mechanic 3 times. First time: he said it was the reservoir so he changed it out, I kept having the same problem I took it back he told me it was the fuse, this last time he stated it was the it was the thermostat. I've spent so much money paying this mechanic. N it's still doing the same thing. I need help.
Go to a different mechanic
YT I sure did, took it to another mechanic, back than. I made this comment 8 mos ago.
Thank you
You're welcome
What if there is no voltage?
A richpin I've been watching your videos for a good while. My Saturn has lasted me a long time because of you. Now I'm Scratching my head as to why my car is overflowing the coolant when I park it but is not overheating. can you help me out
Wondering if this video fixed your problem because I’m having the same issue as you.
Thanks
Hi i Have a 1999 saturn sl1 and the only problem is that it overheats
rich my fan turns on when you turn the a/c on or un hook the temp sensor but it wont turn on when the car gets hot im not real computer savey so if I missed the answer some where I apologize thanks
How did you check to see if the coolant was hot enough to turn the fan on.
if it was the coolant temp sensor would the gauge not work also?
Rick Ingraham was wondering the same thing
Heath Price me too any info?
No change. Being told it could be the ECU and suggested I have it flashed. But untill I have that done I just keep the temp sensor unplugged. Down side have no temp gauge and the fan runs non-stop while the enigne is running
I changed the fan motor, temp sensor, thermostat
Heath Price I changed the temp sensors (2) and the fan motor, checked the relay and the fuse... my gauge still won't go past 1/4 and the fan won't come on even when I turn the ac on.
richpin06a we always see you working on Saturn S Series cars but how come you don't do any Saturn L300 V6 Videos we want to see how to videos on the L series car its a challenge
one thing i never understood is WHY they went form an aluminum intake on the 1st and 2nd gen cars to a plastic one on the 3rd gen (i own a 2002)...most cars i see for sale that are 3rd gen the plastic intake is cracked..On my car, i replaced the plastic one with a a;aluminum one from a 2nd gen
if that cooling sencor is bad will it prevent my A/C from coming on also ?????????
Raymond J no, ac works if the fan is coming on or not. However turning ac on should kick the fan on automatically. The ac switch is an on switch for a working fan. It does that because it takes more power and creates more heat running the engine with the ac on. Now if you can doesnt come on unplugging the ect then you've probably got a bad fan motor so get one at the jumkyard
thanks buddy !!
thank you..............
I was loosing coolant, replaced the coolant tank pressure cap then now about a week later I spotted a crack in the radiator near the transmission cooler lines.
Mine radiator justcrackedthere toogotanewonto mydoor for$67.00 pretty easy to install ifigure it cracked because to hot because fan didnt come on
Sorry for the terrible typing
What if it still overheating even if the fan came on?
Either bad thermostat or low coolant most likely. Water pump could have failed but that seems to leak almost every time it fails.
Just an fyi fuse box under hood 4 relays check there first this happen to my 1998 sc2 saturn and it was square relay just switch one at time..
i just unplugged the AC because it doesnt work anyway and press the button in the cabin when i want the fan on.
Wait so you can unplug ac compressor and just use ac button inside car to turn fan on?
That fan noise is traumatizing
I got a 1995 saturn sl and i changed the fan motor and the fan isnt kicking on. I pull the coolant temp sensor out and still nothing. I noticed when the car cools the radiator hose collapses and when i un screw the reservoir cap it goes back to normal. Do you think i just need a new cap and the fan will kick on. I let tge engine go past 3/4 of the way up almost overheating and nothing the fan wont kick on. Please help me i got to get it inspected and its my first manuel car
Have you checked the fan itself and the relay.
Relays are good what do u mean check the fan
My fan isn't turning off... 😂🤣
Your sensor must not be connected
@@Numba1boxa That's why it's funny. Hence the emojis 😂
I still have this problem even with new fan and sensor wtf is going on
I watched this in 1.75 speed 😭😂😂😂😂
2:20: Mine didn't ?!
Here's a tricky one for you, I have a 97 SW2 that if you unplug the sensor the fan comes and when you test the power and ground it test good and when you also ohm out the sensor it's good so I replaced the sensor just because I had removed it and the fan still doesn't come on and it over heats any ideas? Oh and great videos very informative thank you