Overheating Help! | Testing Cooling Fans - Relays - Connections

[@stevenbryce6269]

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!

[@yperalta0809]

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[@sydneylightfoot7715]

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[@DOOM1715]

This is an excellent tip I learned from my old school mechanic neighbor when I was a kid

[@UnratedMinds]

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.

[@SCStang]

What one was it

[@neomatrixfree3627]

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!

[@locotx215]

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!

[@CarsNToys]

Thank you. Appreciate the feedback.

[@billbernhard3582]

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.

[@catfishcain]

Well explained with great camera angles. By far one of the best automotive repair videos on KZbin.

[@CarsNToys]

Thank you. Appreciate the feedback.

[@Sneakshot88]

​@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?

[@rube_shoots]

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!"

[@CarsNToys]

Thanks, Ruben!

[@johnbirk843]

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

[@ryan3390]

Best video I found on KZbin 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.

[@CarsNToys]

Thank you. Appreciate the feedback.

[@raulplaton3512]

Ryan McGui

[@hugh3rdof5]

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.

[@ronnieatticus8455]

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.

[@hugocristiano928]

@Ronnie Atticus instablaster =)

[@ronnieatticus8455]

@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.

[@ronnieatticus8455]

@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!

[@hugocristiano928]

@Ronnie Atticus glad I could help :D

[@Mista_Godfather]

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

[@abujamiylah]

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

[@chrismaloney2108]

You should pick up a power probe brother. Would make your life much easier testing relays and triggers and such.

[@kirara4953]

This video has a ChrisFix amount of detail, straight to the point. I like it

[@VGMStudios33]

Fuck Chris fix! Hate that guy.

[@kirara4953]

@@VGMStudios33 You don't like simple repair videos and wooder?

[@jacobsamson257]

Ya agreed he's lame

[@ntbzero7]

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!

[@alfredweaver5390]

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!

[@michaelcordero5588]

I like this guy. I can understand and pay attention to everything and my attention deficit disorder doesn't even bother me.

[@e.la.emusically9762]

How do you know

[@e.la.emusically9762]

Duh

[@daniellesharp7881]

all of that is helpful but missed one part way in the back there the thermostat housing is a switching unit " coolant temperature sensor " if this is not functioning it doesn't send the " click on " signal to the relays and thus fans don't run this can be caused by electronic failure or the thermostat itself is not opening to allow the coolant thru the pipe to the sensor as u showed with this video all the easy to reach stuff was tested and working so for non working fan under these test cases relays / wireing / fan moters done would inverably be the CTS switch or a blocked thermostat port

[@ethand5672]

if I still have my dashboard coolant temp going up and down normally, that would indicate a functioning CTS, correct?

[@Benjamin-xr1xy]

@@ethand5672 i have the same question lol

[@sevdustx]

@@Benjamin-xr1xy did you ever get your answer? I just started troubleshooting today but was wondering that as well. Temp gauge works fine.

[@thezenchick790]

sevdustx did you ever get your answer I need helppp

[@bm7301]

@@thezenchick790 u can acquire a laser temp thermometer from essentially any auto parts dealer, harbor freight, etc...to see the exact temps of coolant, oil, brake components etc..then u will know if ur sending unit is engaging at or near the proper temp..and saves a lot of ouchy and ooohh ahh hmm that’s hot ouch moments..lol..cuz the laser reaches where our hands cant and remember to keep the distance from the piece ur checking and the thermometer approx the same for accuracy..

[@husseinlodhee2357]

You are a Genius MAN...Never seen a video like this before Sir..Thanks

[@saltycreole2673]

Thanks. Well done video. My daughter took off with my continuity meter in the truck..., my fault. Wait 2-3 hours, have a cool drink and lunch. All good. Thanks! By the way, I'm diagnosing a 2001 Honda Accord. Only one fan relay. Makes things easier yeah? Lol!

[@novisnick6928]

Thanks so very much for the education! I couldn’t think of a better teacher. God Bless you

[@cwm7930]

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.

[@CarsNToys]

Thank you. Glad to help!

[@showme20able]

@@CarsNToys if you can show us remote start installation that would awesome, a lot of us would like to know .

[@robestey5628]

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.

[@CarsNToys]

Appreciate the feedback and I'm glad to help.

[@MakotoTsuguri]

Your method helped me track the problem down. Well, half of it anyway. My AC fan would not turn on even though I turn the AC on. The radiator fan kicks on like normal. Both fuses are in the clear. Will have to have the mechanic check that while he fixes another problem I have. I've been having the car go into overheat when I idled, but cooled down when I drove, especially when I turn the AC on lol. You saved me from having to go and buy a fan switch and thermostat for nothing.

[@CarsNToys]

Happy to help!

[@MakotoTsuguri]

@@CarsNToys So long story short, the mechanic said the fan went and died. Thankfully was able to take care of buying a replacement that day.

[@earthdog1961]

Beautiful Man! I've been a mech for 35 years and you dumbed this down to where a high school student could understand it. Good job.

[@CarsNToys]

Thank you! I appreciate the feedback.

[@forhisglory700]

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. 🙂

[@MarkInLA]

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.

[@CarsNToys]

Thank you. Appreciate the feedback.

[@iqthunder1]

I've seen many videos on this to test and solve my fan problems, but never like this one. Thank you so so much.

[@goochi5544]

I have developed a very reliable relay tester. Works 100 % in detecting not just bad relays but relays that are about to go bad.

[@sunilayya8948]

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.

[@Alex-sd6mc]

Perfect video. You were concise, no bulls***, and was very specific. Thank you!

[@joseburgos5106]

Super explanation. Thank you for sharing and your time putting this together for everyone. Great job!

[@geo7022]

Awesome I watched the first couple minutes of this video and you just saved me $110 diagnostic fee tomorrow and God only knows what else they would’ve blamed it on but in my case when I reach down unplug my fan to test the Wiring to them. I found that they were not clicked in all the way, basically they were unplugged. Once I put pressure to snap of them tight I turned my car on and fans came on immediately ! Not sure how they worked loose but hey awesome video thank you

[@CarsNToys]

Good stuff! Glad to help.

[@Panarrican65]

Thanks for the easy-to-follow testing instructions. I'm new to a multi meter tester, so this helped. My car's fans aren't working. I've changed all relays involved (had no way to test them before) and temp sensor. I'm going to do the multi meter test for current and continuity. 👌

[@kevinhancock4064]

Sorted now dude ?

[@janmanuel6964]

???

[@vermili0n]

thanks for the info, my ac and radiator fans both dont come on so i'm gonna buy a multi meter and do some digging and see if i can figure it out. almost overheated in traffic yesterday.... very stressful

[@BroadcastsFromPoorFarm]

Was it a bad relay, bad connection, or bad fan? In the same position right now. Ruled out a bad relay today.

[@vermili0n]

@@BroadcastsFromPoorFarm I’m not sure I haven’t even touched it yet, but I will be soon. I just replaced a headlight connector and noticed the other one had been replaced before as well so I’m wondering if the plugs/connectors are so old the power isn’t getting to the fan. Gonna check relays/shorts/connections soon. But I’m wondering now if it’s a bad connector

[@froglegs4910]

Very Very Good ! You are very smart ! Very logical and Very Helpful ! You are very good Auto-Professor !

[@sheilascott7688]

SUN NETOR k

[@reybitz74]

I like this video. Clearer, simpler and direct to the point.

[@CarsNToys]

Hope it helped.

[@andrewandrew4446]

Most informative but simple video on this topic that I've found! 👏

[@Sup3rBald73]

Great video, after replacing radiator fan on my 09 vauxhall corsa the fan wasn’t coming on for a/c or engine cooling, all relays were good as I used your method to test relays and the fan which was working when I connected it up to the battery with crocodile clips, but still not coming on at 100°C to cool engine down, after removing fan shroud i noticed that the fan resistor was corroded and after replacing it my fan comes on at the correct temp, and after getting the a/c tested and regassed all is good, when I have the a/c on now the fan spins giving ice cold air in the car now, thank you 👍🏻

[@CarsNToys]

Awesome! Glad it helped. Cheers.

[@hilariorodriguez4542]

at 3:50, if you don't have power, you have an open circuit. A short would drain your battery and most likely start a fire.

[@jazpanoz4996]

😂

[@Loulito]

EXCELLENT VIDEO! I'm having a current issue where my fans won't turn on. I've spent so much money on new relays, fan temp switch sensor, ECT sensor, and still my fans won't run. If I disconnect the connector that terminates at the fan temp switch sensor then my fans come on full blast. If I reconnect that same connector back to the engine harness the fans turn off (meaning there is continuity) and if I go and turn on my a/c the fans run on low. So, I know my fans are working and I have a Relay Buddy tester and verified that all three fan relays are fully functional. So, I conclude that there's def an issue with the relay box / battery area and where it grounds, I think. Because when the fan temp switch sensor hits its temp range and sends its ground signal, that signal is not reaching the ECM is what I am thinking.

[@MrAlcmj]

this is the first time iv ever understood using a multi meter and wiring, thanks

[@ryus9660]

i am seriously impressed with your video. it was so thorough. i can't wait to get started on testing all these things, to pinpoint the problem in my car!! thank you

[@anthonydeherrera6205]

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

[@johnellison1072]

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

[@tetesukkosodok5469]

Like everyone else said, very informative and very well explained. Learned a lot. this is what KZbin is about. thanks

[@kodywalter8348]

I got a buddy that is interested in my expertise when it comes to fixing a radiator fan. I've never fixed anything on a car. Official expert!

[@randyfields563]

I'm not a mechanic / auto but imagine a electronic engineer and I changed the water pump in my Suzuki XL7 with 200,000 miles and it was a massive job to me cause half the pump on this auto is inside and outside the engine,so we can do alot of jobs on our vehicals to save money but thanks You Tube I done it.

[@jennifermorales7787]

Great video, even an old lady like me can understand this. 👍 Thank you!!👋

[@mohanjaglal1377]

Great job! Thanks for giving us a detailed and informative video. Sound troubleshooting techniques. Awesome.

[@estebanserrano1303]

Great instructions. Thank you. Don't know why you don't have a million subscribers!

[@vetter9284]

Thank you for the excellent ninformation and explained in simple terms for average person to understand!

[@smerk429]

Hi thanks for your videos.. I'm a subscriber. When testing the radiator fan harness connector, is it a must that we know the way that the harness connector ports are set up ? Or Can we simply place the positive test lead in any harness connector port and then place the ground test lead into each individual relay port to hear that beep to test for continuity ? Making sure to repeat this process for each and every radiator fan harness connector port (4+ ports). I also noticed that you tested only one (#1) harness connector port with the positive test lead touching the ground test lead to the relay port (#5) and verified continuity. I understand that this verified continuity for that specific port but should we check EVERY PORT because is it possible that one port can have continuity but another one of those ports in the same fan connector, etc. be defective while the other port is simultaneously okay making us assume that that continuity check came out ok when in fact part of that connector could be defective while the other part is okay ? Or once you verify continuity in 1 port, is it unnecessary to check the remaining ports ? Sorry about being excessive just trying to be thorough. Thanks. Anybody knowledgeable please reply soon.

[@Ashroyer86]

If there's no 12 volt source at the dist box could be more likely an open circuit than a short. Good tip on tracing from box to wiring connector. Another thing is people think if the a.c. powers the fans on that all is good. The problem is the a.c. doesn't control the fans when in use for regular engine cooling.

[@davedeatherage4902]

Thank you sir; helpful info: I appreciate it. Went through low speed fan on the blink. 👍👍

[@CarsNToys]

Excellent!

[@thatophate4923]

Not a short but an open circuit. Thanks for the video very helpful

[@alfredosales-staudinger9370]

thank you for your time showing steps to take to help individuals like myself. BLESS YOU...

[@andrewwu8252]

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!

[@CarsNToys]

Thank you. Glad to help. Cheers.

[@tnamen1307]

@@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???

[@wyeshyes2087]

Dear SIr, Your video is very well explained and is well detailed many thanks

[@CarsNToys]

Thanks and welcome

[@ParisEnterprise]

this guy legendary mechanic. i learn many things from your video bro. thanks

[@HATTAFRASHED]

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

[@Kneepuck]

Also, checking for continuity in the harness will tell you if it open, but if it is shorted out it will also still have continuity. Better to check to see if the hot lead is shorted to ground first, then power the circuit and see if you have power at the connector

[@marcosd4381]

What do you mean by this? Please further explain

[@marcosd4381]

I’ve ran into a brick wall with my situation, I have a great feeling your comment & Information will be great help

[@marcosd4381]

I just quite don’t understand

[@Kneepuck]

@@marcosd4381 If you disconnect the battery positive terminal, then use a multimeter set to test resistance ( ohms), then you put one of the meter probes ont the battery negative terminal and use the other probe on the connector in question, you should have 0 ohms resistance on the ground pin and some resistance on the positive pin. If you see 0 ohms resistance at the positive pin, then the positive wire is, somewhere, shorted to ground. If you have some resistance there, reconnect the battery, place the meter on dc voltage setting, turn on the ignition and see if you have voltage across the pins of the connector. Be aware that there may not be voltage until the engine is at operating temperature, in the case of a cooling fan. This same test can be done at the cooling fan relay. In fact, that is the first location to check. If the voltage is present at the relay, then check to see if it is present at the fan connector. If it is not, then either the relay is bad or the wiring between the relay and the fan is bad. If there is voltage at the fan connector but the fan will not come on, then the fan is likely bad. Also be aware that if you probe the relay socket for voltage by putting the black probe lead at the battery negative terminal and using the red lead to check each pin of the relay socket, there shoukld be 12 volts or so at one of the pins. That is the voltage that will go through the relay to the fan when the relay is closed. If you do not see battery voltage at one pin, check the fuse and other wiring from battery positive to the relay connector. That is a basic check. I don't recall the details of this video, but will be happy to amplify my answer if you have more questions.

[@DNav-cz6tx]

@@Kneepuckgreat thanks

[@dannymendez]

OMG, this video help a lot. My passenger fan don't kit on, and I replace. Brand new. Relays are good, and dealer said computer are good. I think no one check continuity on my cables. I will jump on that. Thanks.

[@stephenlungaro6394]

Very informative and covering all trouble shoots. Thanks and keep it up

[@rjlinnovations1516]

Thank you for sharing your excellent video tutorials 🙏. It was very informative and it’s easy to follow. Great trouble shooting on step by step sequence. Sending my support

[@ndykema9796]

Dude you’re a legend, I am inspired by how accessible you’ve made this, cheers!

[@brad173]

Thanks for the video! I’m hoping some of this helps me track down my problem on a 2005 Sienna. I have a problem where the fans stop working when the van is hot and been sitting idling with AC on. We sometimes need to do this for our dog when we are at swim meets. When it happens we loose fluid out of the reservoir. It’s lost up to a gallon before. Runs fine otherwise and No overheating. If you have any suggestions please shoot them my way! Thanks!

[@hcic9860]

Perfect Bleeping video my friend. Explained everything in excellent, easy to understand fashion!!! 👍🏼👍🏼

[@adelalaiwi]

Great job 👍 A question... What if all relays and connections are good and the fans work good but they delay. It takes a while till they kick on. I start engine and they are off, then I start the a/c and they are off. After a 3 - 4 minutes they are on. What seems to be the issue?

[@hoagybob]

One of the best videos addressing this problem. Great job and thanks for your efforts here!

[@CarsNToys]

Glad it was helpful!

[@kingofkisses2008]

Well done, so informative and covering everything from A to Z. Thanks a lot for sharing and keep it up. 👍🏻 👍🏻 👍🏻 👍🏻 👍🏻

[@isidoremartinez2529]

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

[@dfields9511]

Great vid. I have 1 fan not turning and 1 turning . Yah I think it’s the fan motor. But good to see how to test the relays also

[@fugio0416]

I have same issue , did u ever find out ?

[@dfields9511]

@@fugio0416 replaced the fan assembly with 2 new fans and 1 fuse

[@nashehanes1044]

Maybe the reason you can't find your 150-ohm capacitors is that they're resistors, not capacitors. Look for resistors and you'll probably find them.

[@raymondward3073]

Great video, you explained things so thoroughly and easy to understand. Awesome! Great job and thank you

[@33ordie]

great video that explains a lot, meaning lots of tips to figure out the issue I have, where my fans are normally supposed to kick off at around 215F, instead the engine bumps up rpm as if I hit the gas pedal for a fraction of a second. If you have a tip on what could be the issue please advise. I do not have the testing equipment you have (yert!). It's a Dodge hemi 2018. How I broke this is I started my car without the Tb connected, which triggered 3 codes... Then the issue started and is just non stop.

[@ntk1875]

Thanks man! Going to buy the multimeter and battery pack today. Testing my bmw.

[@train4905]

Dear sir,an absolutely brilliant video.very Helpfull indeed,thankyou kindly.steve from the uk

[@AmericanPatriQt1776]

@CarsnToys Hey bro! Thanks for making this video! I have a 2016 Chevy Sonic, and i have issues when i'm in a traffic jam or idleling for long period...I have ac on when i am stopped hot air comes out, and eventually temp gauge come on beeping, i pulled over and popped the hood and opened the coolant cap and pressure came out and liquid went everywhere! This video helped me figure out what i need to do to rule everything out. Some people say it could be a leak or a crack in the radiator. Not sure.

[@SeyhiToGLavaTa666]

Thank you for the help 🙏 and God Bless you , very helpful video hope will get 100M views u deserve it This video made me safe some money 😊 I have a Rio and never have seen my fan to work :D so I just turn on the Ac to max an was spinning so no problems God bless you and your famiy

[@reynaldoclaveria100]

Thank you sir for the clear and valuable explanation. I have learn completely. May Jehovah God bless you for your kindness helping others.

[@bluebox212]

Dag! You just got me as a subscriber. I like the fact that you are comprehensive in your tutorial. Thanks Chris

[@CarsNToys]

Thank you. Glad to help.

[@thomasdinh2971]

I love your video ! You are explaining very clearly every steps all the ways . I am admired you ! You are just as good like “ Christ fix guy “ . You are a good young man . Thank you for the video !!! 👍👌👏

[@CarsNToys]

Thank you! I appreciate the feedback.

[@raworthyel3786]

Excellent job you explained the multimeter operation, I finally get it.

[@danishzd]

I have a corolla with radiator fan issue, the fan works directly, relays are fine too, im gonna check continuity of the fan wiring tomorrow, fingers crossed.

[@christophergranbery2707]

Very well done. You sound to be a patient man. Youd make a great instructor.

[@CarsNToys]

Thank you. Appreciate the feedback.

[@leobonin780]

A great video and very detailed, although I am working on a hyundai, the process is still the same I just wonder tho, if the temp. sensor isnt working but the relays are good and the fans test good, would the fans still work? from what I saw in this video everything was working as normal so if we werent trying to fix this vehicle, why did we do the tests on this vehicle? I thought he said at the beginning the high speed wasnt working on this vehicle but all test showed that they were. as a mechanic I appreciate the detail of this video, not many people get into such detail, I would like to see this man do more video's.

[@CarsNToys]

Hi Leo. The fans were working perfectly fine. I just did a how-to video to show the steps involved if you do indeed have a problem.

[@modman731]

Thank you for a very thorough explanation to testing the radiator fan. It was knowledgeable and entertaining. Take care.

[@Daily_verse_20]

I’m so thankful for this video and the time you took explaining everything is great detail!!! Thank you !!!

[@iftikharqureshi654]

Excellent clip. Even a layman can benefit from it.

[@randomperson-gy5ee]

Best video I’ve seen on this subject.

[@sonyamayo931]

Wow! This video info was exactly what I needed to diagnose the situation I was experiencing. .Thank you sir for your tutorial. ... P.Dub from Fresno. .

[@azvasamusic7095]

This is the best vid out there for the info provided Thank you

[@everardocamacho5063]

Thank you , great video as always, I like to learn from you videos, cheers from ontario calif.

[@CarsNToys]

I appreciate the feedback and glad to help.

[@jsmith3964]

Good info.i replaced my radiator and after replacing it the fans so far are not working battery was not fully charged I will try your plan .thanks

[@jonanderson6882]

Ourstanding job on this one. Very impressed. Thats saying something from me.

[@timetryp422]

Very comprehensive explanations!

[@dubsaloon]

I believe the "wifi" icon indicates audible. Very nice video. Thank you.

[@ll_distribution]

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 :)

[@e60power1]

This video is GOLD. Thanks for all this information. I learn a lot.

[@CarsNToys]

Glad to hear it!

[@deronaldbaggett3828]

excellent video! Really like the thoroughness!!!

[@tahirriaz74]

Very good and complete video on fans

[@Porsche996TT]

Great detailed video. Thumbs up. BTW I was wondering if you don't have a fan resistor in your car or forgot about it if I may say?

[@gilliwisemedia8353]

That's what I was wondering.. I thought that was what controlled the fan to come on when you switch on the AC.