WHAT RADIATOR FAN RESISTOR IS. WHAT IT DOES AND SYMPTOMS OF A BAD RADIATOR FAN RESISTOR

[@AutoRepairGuys]

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[@BlerdClert]

Thanka for this video injabe a 2015 chrysler 300s 3.6 and i had no low speed only high. After seeing your video went to the junkyard and grabbed a resistor off a 2011 300. Put it in about an hour ago and now i have my low speed fan back and my car no longer only uses the high speed van to cool the car at 110 degrees. Now it stays nice and level aro8nd 98 to 100 degrees at idle. High speed fan doesnt even come on now. Thanks for your help!🎉

[@10SecondZ06]

Thanks man. Exactly what I needed to know and the general area that it’s typically located and what it looks like. I didn’t realize exactly how it works but it now makes sense that it would be located near the radiator.

[@FernandoRodriguez-ds5ri]

What was your symptoms

[@mariguas5700]

Thank you for the information it was helpful 👍🏼. Also can you make a video on how to test that resistor? Thank you

[@elharthbarouni73]

how to test the radiator fan resistor? i cannot find the link

[@fordxbgtfalcon]

Excellent video! By far the best explanation of this in KZbin. I had no idea modern cars used these. My kia was acting weird at idol with the AC on. Fan was only going high speed and making lots of noise.

[@ozarkcharlie9331]

Thanks Auto Repair guys.... my wife has a 2012 Elantra and it is a pain in the butt, thanks to you guys I can keep it running

[@EMcG-t3r]

Thank you!! Ive narrowed my issue down to High Speed fan resistor. My fan turned on, but i realized after a few times my car started getting higher temp over mid-point , that I no longer heard the high speed fan kicking on. It didnt heat up until stop n go traffic,

[@dennisnoone7427]

where is a link on how to test the radiator fan resistor?

[@unitedfirearms1057]

If I had to guess. You check resistant/continuity

[@tubetime39]

@@unitedfirearms1057 And ? What is the reading suppose to be ?? Thanks !

[@unitedfirearms1057]

@@tubetime39 you should have continuity. Meaning a direct flow of electricity through the resistor. If no continuity than there's a break in the coil

[@alexanderokefi4706]

I need to know how to test the resistor

[@unclemarksdiyauto]

I will ask them again!

[@anthonyalegria7096]

Thank you! I just found your video....but I spent $400 to have the whole fan assembly replaced on a Jeep Renegade last week. The old Fan is good.... it was a bad resistor but I didn't know about them. Luckily I still have the old fan. I'll replace the resistor and sell it used to try and get back some of my money. 🤣

[@richardj8853]

Is the resistor fixed to the radiator fan assembly or to the car body ?

[@anthonyalegria7096]

@richardj8853 the resistor is directly attached to the black plastic fan shroud. Mine is only visible from the inside part that faces against the radiator. I can see the connection, facing the motor, but with the fan attached to the radiator there is noway to see the resistor. I only found it once the fan shroud was off.

[@richardj8853]

@anthonyalegria7096 thanks for the info, I shall certainly look for it . I've noticed that my car's radiator fan kicks in only for about 4 to 5 seconds ans stops and I find this very unusual. I'd expect the fan to kick in for atleast 10-15 seconds . I may be wrong but maybe you can throw some light.

[@BluntForceBurner]

@@anthonyalegria7096, i also have the same problem, but my solution will be to cut the old one out and make a insert plat for the new one, so now i can screw it to the fan shroud for easy access

[@urbansurvivor2391]

Thank you. This fixed my problem. You earned my subscription.

[@singh-zq9mh]

Great video..subscribed your channel... Thanks .. keep doing great work...

[@sirsweetness8332]

Also looking for link how to test

[@djturomixvoltio5132]

I replaced the cooling fan sensor in my dodge journy then still no came on the fan , i have to turn on the air condition to make the fan working could be the Engine Radiator Fan Resistor like the way you said in this video if i don.t turn on the air condition starts to heating up the water then boiling too

[@alishasmommy3]

I have a journey too an these go out often as well as a million other parts

[@mrzee1958]

Hi - I just read your comment - I have a 2014 caravan and have pretty much same problem. No low fan but when I turn on A/C high fan comes on but I get a check engine code 480. After replacing many parts including cooling fan which includes this sensor, I brought it to a mechanic who just called me and asked if I had the old sensor cause he has seen some of these new ones defective! I am bringing it in the morning to see if it works!!

[@Esuper1]

do the HOW TO TEST THE THING brother. You have two vids that tell what it is. It takes a few minutes to explain what it does and where it is. We need to know how to test it.

[@ozarkcharlie9331]

You guys are awesome🤙

[@ronniehdable]

Great information

[@heingerhardi971]

My oil light flicker spontaneous when car reached working temp oil full when car is cold no problems. Only do it at idling

[@gartheligon140]

What's the small part under the resistor? Is it a thermal cut off or a diode? Both are connected in parallel, what value should it read on resistance test?

[@HATTAFRASHED]

thanks for your efforts impala 2012 no blown fuse all relays good fans not work good ect only with scan tool using active test please tell me about the problem

[@sheerwillsurvival2064]

You guys rock . Have questions I have 2013 grand Cherokee. No over Heating but I don’t hear fan on high anymore. Fan comes on low with AC on OR I let it run it gets to 210 the fan comes on low cools it to 205 and I never hear high fan anymore. Should I look at it or is it no problem???

[@undergroundexplorersoverland]

Any idea what the temperature rating is on the thermal fuse?

[@uiopuiop3472]

i know. its not enough by hungarian standards and dies. like 45 50 celzius fok (degree celzius) is where it died on me. and i had to wait for mr panda laszlo (head of the renault mark service on hungary) for replacement.

[@tonidinov4254]

Tnx good to know.good Job.

[@gaazag6643]

urgent question, is the other device a thermal switch or a diode, please i need an answer cannot find this out anywhere

[@davehartz4552]

The other part is a thermo fuse I believe. I have shorted past many of these in the heater fan motor curcuit and restored the low speed fan operation. If your fan is not working on low speed (heater or radiator) check to see if this fuse is open.

[@Thegoat7398]

@ Wondering if this is my problem because at times when I stop the ac temperature drops or blows hot and only after I pull off it starts back should I change it

[@she3esh]

Is it possible to repair the resistor by resoldering on a new one?

[@cylturbskie]

Hi, would another symptom that its failing be it turning the fans on later than they should turn on relative to the temperature? So for example - if the car gets to like 91 degrees the fan or fans should turn on, But instead of that 91 degrees it turns on at like 93 or 94? Would that be a symptom of failing??

[@LordFlashheart1]

Possible radiator fan switch or coolant sensor

[@msntung]

can this also prevent the compression clutch from spinning?

[@charritolopez8223]

Yes since the condenser is getting hot due to the radiator fan high setting isn't working correctly the a/c won't come on that way it protects your car from overheating hope this helps you can check resistance with voltmeter across from the thermal resistor if it has continuity it's testing good and maybe your coolant temperature sensor might be malfunctioning

[@Ni_gamer99]

Good

[@sunvall5589]

My fans are taking to long till the temperature needle is all the way up for the fans to turn on will tha have something to do with the auxiliary resistor?

[@johnwelford-v1t]

what happens if my 21 kia forte has no resistor and is just wired straight to fan relay?

[@fabianvalencia9169]

I have a question, I just took my car to the dealership because my car was overheating. I replace the radiator fan before I had took it in, and I replace the thermostat last year. I called them to see an update and they said I need a new radiator fan, radiator fan resistor, and a new thermostat. I literally just got this new radiator fan a week ago.

[@usernamelastname9708]

Mine does the same. My fan resistor keeps blowing speed low and medium. I think the resistor is getting too many volts and blowing it. I am on my 4th fan from auto zone, luckily I have lifetime warranty but I need to know how many Volta it should be getting.

[@mornigstar4552]

@@usernamelastname9708 if known please share also same problem

[@usernamelastname9708]

Miguel Angel Escobar Lopez The one I was buying was From Auto Zone. I believe it was a Denso Brand. Wel the last time I replaced it they made a big deal cause I kept going and I told them it was their fan resistors. So I got my money back and bought one from Rock Auto. I bought the cheapest one just to test it out and to keep the fan housing since I threw out my old one. Well this cheap fan(cause the resistor comes with the fan already) has lasted me more then the one from auto zone. The bad thing about it is that it shakes when it turns on Low/ medium speed. What I am going to do now is buy a AC Delco one. Bad thing is that it comes with just the fan so You Will need a housing. Dont throw away your old housing. I am hoping that one works flawlessly. These cars suck. Even when I got it off the lot the ax couldn’t keep up with this Texas Heat while parked idling. Best of luck.

[@charritolopez8223]

I took my car to the dealership for a p0449 and I believe p0170 after waiting about an hour later the service rep told me if I knew that the car was overheating I was like what are you talking about but since the car had extended warranty they told The warranty department I needed a radiator fan housing so they charged warranty department 700 but the only thing the dealership replaced was the resistor probably around 78$ they made a huge profit scamming the extended warranty department so what your saying they want to scam you for something you don't really need

[@steveferguson1285]

My fiat 500x has went through 2 fan resistors. What’s the reason for that would you think?

[@alexabadi7458]

Fan tastic !

[@saritagurung-c3m]

I hava same problems my car but I’m looking for who fix

[@robwest1331]

Thanks bro

[@pennykobori7145]

THANKS

[@terryforbes1368]

The coolant sensor turns the fans on and the resistor tells the fan weather it needs to be high or low speed

[@ChandRamlakhan]

Did you say that the resistor turns on the fan only when the AC is on? The fan turns on without the resistor when the coolant temp is too high?

[@gonzalobrig]

Yes. I did understand too. How an resistance can sense and turn on / off the fan. Weird

[@tubetime39]

@@gonzalobrig I think, maybe the resistor is capable of sensing heat. Not sure but guessing. There's a way to check resistor but I can not find any of these videos talking about it. Not sure if I'm using multimeter correctly but I am reading 1 to 5 on one & 1 on the other. Just now got Q answered as to how many ohms & parts store said 48 ohms ( I believe ). I ordered two for my twin fan ( 1 resistor in each ) for Ram Promaster van 3.6L. Hoping this does the trick. May pull temp sensor too since I have stuff cleared out in front. Wish I knew how to release clip on temp sens, I don't want to break it ! Hard to reach it, worse to fix connector. Good luck with yours.

[@gonzalobrig]

@@tubetime39 no! I have news. I learnt these last year. The cooler fan has 2 speeds. low and high. So in low speed the electricity goes through the resistor and the fan spins slow. Then , at high , a relay commute it to bypass the resistor and the fan is at full speed. The relay is controlled by a thermostat.

[@tk4270]

My diesel fiesta mk6 fan comes on only when ac is switched on but never comes on when engine hot. Temp guage is stable and always in the middle. No leaks or coolant bubbling. I have fitted new thermostat and new coolant temp sensor. I have now took this part out of the car and looks same as yours but dont know how to test. Genuine replacement is expensive and dont know which aftermarket brand to go for if test fails.

[@charritolopez8223]

If you can look at the number itself on the resistor you can Google it and might find it then have someone solder it where the old one was it'll be more cheaper than a OEM replacement hopes this helps

[@tk4270]

@@charritolopez8223 Its sorted now. I found these engines have to be running for a long time before the main fan kicks in. To test, i took my car on local roads and never switched engine off even while i was parked as my passenger went into shops etc. After a while i heard a slight buzzing sound. I opened the bonnet and saw main fan was on. So the main radiator fan on these runs at very hot. I also have a honda car and the radiator fan on that comes on quite early.

[@declansgamereview6523]

@@tk4270 do u knw what temp? Ran my Fiesta to 107c but it still never kick in

[@tk4270]

@@declansgamereview6523 I wish I made a note of it on the digital display for temp on the Fiesta. All I can say now is keep doing short distance drive but do not turn engine off for about an hour. You should hear engine rpm change and the buzz of the main fan when it kicks in. I did mine in the summer so in winter, it may take longer. Good luck buddy.

[@haihuynh5638]

Where it located on Mercedes e350 I don’t know where it locatet

[@Georgiehz]

Is there a failure to fan radiator causing the fan fuse to run hot enough to pop

[@bmead144]

Why doesn't anyone make a video on how to test these fan resistors!?

[@liondepierre]

Would you know where the placement of the fan resistor is on a Fiat Punto Evo/Grande ?

[@Alexander_l322]

I’m a year late but unbolt the coolant tank and it’s on the radiator underneath it

[@rydgomez2]

What would cause my high speed replay to click on and off fast. My fan not staying on long enough to cool radiator. 14 Grand Caravan

[@mechatronixx7954]

I replaced resistor but still does not kick fans on on high

[@ioncasapu6200]

Daca se poate să-mi spuneți de unde se poate de procurat acela care arătați

[@mitchellgodwinjr8663]

Can it make the fan where it runs constantly even when the car is off? My wife has a 2011 Hyundai Sonata 2.0 turbo and for a month now I’ve have to hookup and unhook the battery to get the fan to stop running every time she drives it or it will run the battery dead smh… PLEASE ANY SUGGESTIONS OR THINGS I CAN TRY…

[@70FordMach1]

For anyone with this problem. Find and pull the fan relays in the fuse box until it shuts off. That one relay should be tested and or just replaced.

[@konstantin-big]

Did you find the solution for the problem???? Maybe that's a problem of temperature sensor???

[@babishernandez7391]

Where is the radiator fan resistor for dodge dart 2015 located

[@mitchdante1323]

hello i have a 2014 dodge caravan. The fan doesnt come on until the engine is overheating HOT! Then the fan FINALLY turns on and cools the engine back down to normal temp. I heard there are two temperatures . And mine doesnt NOT turn on ... on the lower temp. (215degress and 230degrees.) only the high temp. Do you believe it is the fan resistor? thank you soooo much!

[@v4lhulme]

Check the relay, separate relay for low speed and high speed fan.

[@mrzee1958]

Hi - I just read your comment - I have a 2014 caravan and have pretty much same problem. No low fan but when I turn on A/C high fan comes on but I get a check engine code 480. After replacing many parts including cooling fan which includes this sensor as well as all relays fuses and thermostat and coolant temperature sensor, I brought it to a mechanic who just called me and asked if I had the old fan sensor cause he has seen some of these new ones defective! I am bringing it in the morning to see if it works!!

[@Msleelee9487]

My fan wasn’t running and I changed the pressure temperature sensor the fan came on and my problem is the fan comes soon as I turn the 2010 Hyundai Tucson on and goes off when I turn the car off I changed the hi/fan relay and that did nothing I changed the engine temperature sensor in 2019 so could it be this resistor? I think I found it by the fan any suggestions ✌️

[@josuegalvez1]

Did you fix your problem ?

[@Msleelee9487]

No I’m going to change the resistor and I will let you know if that worked I’ve had this car since 2011 and it’s beginning to fall apart but it’s still running at 99800 miles lol 😆

[@rydgomez2]

Where is the testing video?

[@haihuynh5638]

Does Mercedes Benz have one like that and what is it called

[@deanslegos1990]

Changed name from world mechanic? Didn't recognize channel

[@heingerhardi971]

How to tes radiator fan resistor

[@nothingsurprisesmeanymore]

Yes that's what it does but I wanted to know how it does it.

[@ghostrider2664]

Sigh I can never understand this dude. Its so frustrating because he literally does EVERY video i need.

[@turbot6592]

Yeah it seems like I try to find a car video without him but he seems to be popping up all the. He needs to slow down when he's talking because of his accent

[@gblim398]

Interesting. My KZbin interface has a closed caption feature. Maybe you could try updating the app.

[@tubetime39]

Can believe you didn't show or tell how tom test it. unliked for that reason

[@marcknab7456]

Good riddance.

[@jorgetrevino5757]

How test it

[@saritagurung-c3m]

Hi

[@maar5725]

بعد شـُـكر الله ' شــــــكــــــراً لك ؛ : Thank you وأصل شُغلك المـُمتآز Keeep UUUPPP . Keeep Goooing . ' أُكرّر شُكري لك . Very Very Excellent steps in diagnosing the problem / malfunction . Good steps 👍👍👍 مـُـهـندّس صيآنّة طــآئــرآت مدنـيــّـة . ومـُفتش مُرآقبّة الجودّة QC inspector ARAB Engineer and Sr. Lead QC Inspector FAA, IA Inspector NDT/NDI Level II Inspector Jeddah Dhahran Al-Hijaz .

[@OficinaMasterdey]

Boa

[@yousifmorsy6511]

How much is the size of daiode?

[@freddiehammons1991]

8

[@commissionerhigh8058]

👍👊

[@JacobLambeCarGuy]

One important question is do you know JESUS CHRIST AS YOUR PERSONAL LORD AND SAVIOR?

[@mrzee1958]

GREAT QUESTION!!!!!! These cars will fail us and eventually be gone but our souls will be somewhere for eternity!! Let's do some preventive maintenance on ourselves!

[@stevemcraemanager7119]

I know the bible calls Lot righteous. A man that offered up his daughters to be gang raped and later lmpregnated them himself. And blamed it on the alcohol. Have you even read that morally bankrupt Bronze Age book? I hope you do not have daughters.

[@maximusaircompanycuppbaile327]

Wow didn't didddddd unddddsta ypu

[@JorgeGonzalez-vq8fv]

👍😁🚘

[@MongrelShark]

How does it work? You explained its part of the system but didn't say anything about its function? How can a fixed resitor value make changes? Poor camera work. Talking fast with thick accent. Couldn't get anything helpful from this video.