Overheating Help! | Testing Cooling Fans - Relays - Connections
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- Опубліковано 26 сер 2017
- If your vehicle is overheating due to a non-working cooling fan motor, this video will show the steps involved in diagnosing the problem. Cooling fan motor testing (low and high speeds), relays, harness connectors...it's all here.
Generally, the low speed fan kicks on when the A/C is turned on or when the coolant temperature hits around 200 degrees F. High speed kicks on around 220F.
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Note:
This video is being performed by an experienced tech. Any attempt to repair automotive parts and/or systems carries risk of personal injury. Always adhere and follow safe practices when working on vehicles. Such as, use safety glasses, jack stands, no loose clothing, etc. No guarantee or warranty is implied. Use the information in this video at your own risk. If you don't think you can perform the job then be smart and don't. Carsntoys is a member of the Amazon Influencer Program.
Publication, reproduction or distribution of this film is strictly prohibited.
Overheating Help! | Testing Cooling Fans - Relays - Connections
• Overheating Help! | Te...
Ending Music: Rusted Feathers by Silent Partner
Carsntoys
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![How To Test and Diagnose Relays and Wiring [4 & 5 Pin]](http://i.ytimg.com/vi/S-DwV0HLsE4/mqdefault.jpg)
![ПОЛНАЯ ИСТОРИЯ ЭКЗОРЦИЗМА [Топ Сикрет]](http://i.ytimg.com/vi/qBySr6Bt0B8/mqdefault.jpg)
Excellent video! Big help! However, I wanted to add something to it that I found out in my 72 hour overheating diagnosis. HOPEFULLY, it will save someone else a lot of headache. I spent 3 full days researching what my problem was. 2014 Mustang V6 was operating fine UNTIL I turned on the AC; then it would overheat. I popped the hood and realized that the fan was not running when the engine reached high temp. I tested the fans, relays, fuses per your instructions - everything checked out (SO I THOUGHT). The actual problem was the Fan High Speed relay. It had continuity during testing with 12v and multimeter; but failed under the actual load in the vehicle. SO, I strongly suggest that if you hit a brick wall; swap out the relay with another working relay (in my case it was the relay for the starter). Soon as I swapped it out, the starter was dead; switched back and it was fine. Bought a new relay for $21 with lifetime warranty and I have been good to go! Hope this helps someone!
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This is an excellent tip I learned from my old school mechanic neighbor when I was a kid
I tried testing the relay just by switching it with another of the same in my Subaru Outback. Everything was still fine so I figured it wasn't the relay until a couple days later my wipers went out because that's the relay I replaced it with.
What one was it
I have been terrified of my cars overheating issues for years. Your videos are the first ones ever to make sense of it all. I have yet to find my multi meter, but once I do, I will be following your instructions religiously. I appreciate your help more than you may be able to imagine. Fear of things electronic has kept me from trying...and I am otherwise not afraid of much! Thank you so much!
Excellent diagnostic, here ! Clear and simple. 1st, check the fuse ! Also, in a pinch, you can swap the #1 relay with one of the other relays on the same number designation. Swap the two & see if your fan issue is resolved. #1 relay should hold the coolant temp at ~ 190*F, even on a hot day.
In less than 20 minutes, I learned about troubleshooting my car radiator fan. Such an educational video and the presentation was spot on. Great job my friend!
Thank you. Appreciate the feedback.
Well explained with great camera angles. By far one of the best automotive repair videos on UA-cam.
Thank you. Appreciate the feedback.
@CarsNToys so on my 2001 acura mdx, the fans are not turning on and the temperature Guage is reading normal but if I pull the relay out, which I tested and is fine, if I take a test light and connect to ground and touch the test light probe to where the relay plugs in, the low fan turns on. What do you think it could be?
This video has a ChrisFix amount of detail, straight to the point. I like it
Fuck Chris fix! Hate that guy.
@@VGMStudios33 You don't like simple repair videos and wooder?
Ya agreed he's lame
Thank you so much for such detailed information. A lot of videos discuss only one issue assuming that you already know the problem. You have created a step by step instruction to diagnose this issue. Perfect!
Truly helpful video. You cover so much more than other sites, yet in a clear, professional, calm matter. (Thanks for helping us with the electrical wiring diagnostics....) You just earned another regular follower.
Sorry to be offtopic but does someone know a trick to log back into an Instagram account??
I was stupid forgot the login password. I appreciate any assistance you can offer me.
@Ronnie Atticus instablaster =)
@Hugo Cristiano thanks so much for your reply. I got to the site on google and Im waiting for the hacking stuff now.
Looks like it's gonna take quite some time so I will reply here later when my account password hopefully is recovered.
@Hugo Cristiano It did the trick and I now got access to my account again. I am so happy!
Thanks so much, you saved my ass!
@Ronnie Atticus glad I could help :D
I really appreciate the time you put into this and the methodical way you explain step by step so clearly. I can't wait to get started tomorrow on mine. my Pontiac Montana overheats because the fans don't come on and the connectors to the heater hoses in the back became brittle and finally cracked. I purchased it old but after all the work of putting all those hoses back on, you made this seem like a piece of cake by comparison. Thanks again
Most informative but simple video on this topic that I've found! 👏
You are a Genius MAN...Never seen a video like this before Sir..Thanks
Thanks so very much for the education! I couldn’t think of a better teacher. God Bless you
Very informative and covering all trouble shoots. Thanks and keep it up
I like this guy. I can understand and pay attention to everything and my attention deficit disorder doesn't even bother me.
How do you know
Duh
Excellent job you explained the multimeter operation, I finally get it.
Great video, you explained things so thoroughly and easy to understand. Awesome! Great job and thank you
In older cars you can connect the switch directly to fan/s by using fuse panel so if they don't start (which may happen due to bad thermostat) you can turn them on manually. Hope that this helped someone
One of the best videos addressing this problem. Great job and thanks for your efforts here!
Glad it was helpful!
Very Very Good ! You are very smart ! Very logical and Very Helpful ! You are very good Auto-Professor !
SUN NETOR k
Thank you for a very thorough explanation to testing the radiator fan. It was knowledgeable and entertaining. Take care.
Thank you so much Sir. Just an excellent video tutorial. I am a newbie and absolutely loved your teaching technique with in-depth explanation and visual. I am now your student. Thanks so much again.
Appreciate the feedback and I'm glad to help.
Great job! Thanks for giving us a detailed and informative video. Sound troubleshooting techniques. Awesome.
Best video I found on UA-cam for not only testing the fans but troubleshooting the whole circuit. Thank you very much, I will keep this video in a playlist to refer back to when needed.
Thank you. Appreciate the feedback.
Ryan McGui
thank you for your time showing steps to take to help individuals like myself. BLESS YOU...
I've seen many videos on this to test and solve my fan problems, but never like this one.
Thank you so so much.
Thank you , great video as always, I like to learn from you videos, cheers from ontario calif.
I appreciate the feedback and glad to help.
I learned so much that could be applied to not only this issue but so much more. You're a life saver for us shade-tree mechanics.
Thank you. Glad to help!
@@CarsNToys if you can show us remote start installation that would awesome, a lot of us would like to know .
Perfect video. You were concise, no bulls***, and was very specific. Thank you!
Thank you sir; helpful info: I appreciate it. Went through low speed fan on the blink. 👍👍
Excellent!
Extremely well done! Thank you.
Super explanation. Thank you for sharing and your time putting this together for everyone. Great job!
Like everyone else said, very informative and very well explained.
Learned a lot. this is what UA-cam is about.
thanks
I like this video. Clearer, simpler and direct to the point.
Hope it helped.
Very comprehensive, step-by-step how-to. This guy is great. I absolutely hate it when other yootoobers post "how-to's" and just point at something something and say, "I took that off, put the new one in, it worked and that's how I did that. Thanks for watching! Ahyuk!"
Thanks, Ruben!
Very comprehensive explanations!
Most helpful description I have ever thank you so much.
There was one little thing, if there is no voltage it is not a shark, it's an open, a short with blow a fuse or cause wires to burn.
It's a tiny issue and it may avoid explnig it.
That said many many thanks, you are the best I have heard at the many hours of searching.
Best wishes
antiguajohn
In apresiation I was going to email you a Pina colada from here on the beach ( while watching the topless ladies walking by).
Unfortunately for some odd reason it has been disabled on this planet, work perfectly well on Star Trek 😂
Thank you and best wishes.
antiguajohn
Well done!!!!!! thank you very much for the detailed troubleshooting instruction
Thanks for this helpful video👍
Superb presentation. You are a great teacher. Subscribed. Even in cars with a multiple speed Single fan , the low speed function can break early and slowly destroy the ac compressor and then the entire system will have broken parts of the compressor circulating.
I’m so thankful for this video and the time you took explaining everything is great detail!!! Thank you !!!
Excellent video. Thank you very much for this!
He is really explaining very good. Thank you very much
Awesome video! This is exactly what I needed. Thank you
Great video! Used this to fix my radiator fan assembly in a 2004 Murano. Thanks!!!
Glad to help.
This is the best vid out there for the info provided
Thank you
Thank you for the excellent ninformation and explained in simple terms for average person to understand!
Perfect Bleeping video my friend. Explained everything in excellent, easy to understand fashion!!! 👍🏼👍🏼
You're awesome! I used these steps to diagnose my issue
Extremely informative. Brilliant.
Very well done. You sound to be a patient man. Youd make a great instructor.
Thank you. Appreciate the feedback.
Excellent clip. Even a layman can benefit from it.
Best video I’ve seen on this subject.
this guy legendary mechanic. i learn many things from your video bro. thanks
Every thing you need in to one video.nice job you are the best
Excellent video! Thank you!
Very well explained theory in actual practice. Commendable knowledge, to say the least. Thank you.
Best video I've come across, thank you sir
Thank you very much, very good training!
Great video gave me a lot of info and knowledge I have a 2014 Jeep wrangler Over heating fan looks like running slow now I can go forward
great information, I will test my prius based on this vid. I really appreciate it
Well done, so informative and covering everything from A to Z. Thanks a lot for sharing and keep it up. 👍🏻 👍🏻 👍🏻 👍🏻 👍🏻
thanks for your efforts
impala 2012
no blown fuse all relays good
fans not work
only with scan tool using active test
please tell me about the problem
i like your procrdures,great job and thanks for the time
excellent video! Really like the thoroughness!!!
this is the first time iv ever understood using a multi meter and wiring, thanks
Dear sir,an absolutely brilliant video.very
Helpfull indeed,thankyou kindly.steve from the uk
Ourstanding job on this one. Very impressed. Thats saying something from me.
Thank you for your very helpful vid. I was able to fixed my overheating problem today! Your vid is straight forward and to the point! Kudos bro!
Thank you. Glad to help. Cheers.
@@CarsNToys With key at ON position, 86 of the C/Fan Relay has 12 volt, and 85 had 1 volt respectively. This relay sits on the engine compartment box.
Now, my issue is that as a test light bulb with its one end connected to 86 and other end to ground, the bulb did not glow. Same case for testing a relay. In both cases, the voltage across each loads is about 3 volt. Why is this happening???
Excellent info. I found the fan resistor was bad and saved me a trip to the shop and an outrageous repair pill, $44 versus $300-$450 shop bill!
Good Job, for this video detailed Explanation.
THANK YOU.
Thanks! the way you explain thing are excellent !
great vid, very helpful, thank you
I've been having a problem with my air conditioning and I been looking at some videos and I did not know that the fan works with the air conditioning but I only have one fan PT Cruiser and your video is so detailed I'm gonna try and check all nam circuits thank you for this good video
I believe that’s what my problem was I just bought this mustang and they had put a new air conditioning in the vehicle as well and they also use this other set up call to Mishi Moto and when I drove the car originally during the day for the first time everything was fine and then when I turn the air-conditioning knob from where it was to the off position is when I had a problem with the car overheating I just got the car today I’m gonna try to switch that setting back to where it was because the way this thing is wired up it should kick on on its own when it gets up to temperature and I noticed when I was driving the car for the second time when this happened temperature gauge really wasn’t going up while I was driving it for the 20 minutes before it overheated
Dude you’re a legend, I am inspired by how accessible you’ve made this, cheers!
Great video! Well done. Thanks!
Dude, you're amazing. Such a straight forward video that even a simpleton like myself can get it; thanks.
On my way out to buy the multimeter.
🙂
You earned yourself a subscriber
Thank you
Great video. Very helpful. Thank you
Whether or not I can test my secondary fan on my 1982 MBZ 300TD this way, or not, I still appreciated this well done explanation.
Thank you. Appreciate the feedback.
Nice! Thank you for taking the time in making this video editing and all fantastic! I'm troubleshooting overheating myself saves on garage cost and get me in the know! Please continue new subscriber here :)
Thanks for very good explanation and demonstration 🙏👌👍
very helpful video thank you so much
Dear SIr, Your video is very well explained and is well detailed many thanks
Thanks and welcome
You just earned yourself a subscriber!
Thank you! Hope the video helped.
This video is GOLD. Thanks for all this information. I learn a lot.
Glad to hear it!
Thanks, excellent way of explaining things 👍
Great explanation! Thanks!
Very good and complete video on fans
thanks for this video, I have a question there is programming in radiator fan or not in Nissan Maxima 2001 or down years.
Thanks this is very helpful information.
such a good learning video, much appreciated
Thank you. Glad to help.
Great video. Very informative. Thank you.
Dag! You just got me as a subscriber. I like the fact that you are comprehensive in your tutorial. Thanks Chris
Thank you. Glad to help.
Thank you ......you did a great job explaining in details ...You are the best.....
Thank you. Appreciate the feedback!
Thank you for this well explained video. Bookmarked.
Glad it was helpful!
FANTASTIC video!!! Thank you for making it! So educational. :)
Thanks a lot . This video is what I need exactly. You r great teacher😊
excellent example here this chould resolve my fan issue thanks a lot
just like that..... exelent explanation. plain and simple. muy buen MAESTRO
Many thanks!
Excellent video, thanks a lot!!