also another possibility if you jump the pins and the fans work, and relays seem to be good, it could also be the coolant temp sensor thats making the fans not kick on at all
Great video. Loved the fact that you moved slowly and deliberately. So many people make these videos, and they talk too fast and move too fast and jerk the camera around. Please make more of these types of videos. You have the knack for it.
Thanks, Helped in a pinch. Had to do the wire jump at relay point to get fan running to make it home, 120 miles. Kept engine at 215F and lower in south TEXAS yesterday
thank you so much, it's great that there's people like you that do informational videos I fixed my fan just by taping on it and unplugging and plugging back in the connection
Your instructions are very easy to understand! I'm having problems with my Tahoe 2010, sometimes the temp will spike up 2-3 lines while cruising or during traffic stops, then back to normal temp after 10 mins. Flushed the cooling system, bought a new radiator, thermostat and expansion tank, $200 later temp still spikes up. I noticed that during temp spike (overheating) episode, my passenger fan is still off and will intermittently turn on and off. Need to check my fan and relays. Thank's a lot for your video!
I've got a 5.3L 09' gmc sierra 1500 ... I've noticed for the past two wks that both my electric fans have been running at high speed non stop. Coolant level was a bit low but topped it off & still runs high. Also my truck has never over heated yet ✌️
Very helpful. I have a 2015 tahoe ltz that is having an issue where the fans are running wide open. I replaced the engine coolant temp sensor like everyone recommends but it is still doing it. I've had the engine cooling fan relay go out on a jeep before and assumed that this was originally what was wrong but I couldn't find the engine fan relays. They're not labeled by GM in the book or on the lid. Also appreciated your recommendations for trouble shooting the relays.
@@mollywapyo to tell you the truth I ended up double checking my wiring on the coolant temperature sensor and it had come loose. That was my problem. But i know that there are fuses and relays behind both sides of the dash inside the door jam end of the dash. I never checked those.
Thank you, I was having issues with high temp on my transmission oil. and was very worried about why my engine bay is so hot. and saw when the high fan is turned on, only the driver side was running and the passenger side is not running at all, but when the fan speed are low, both of the fans are running.
This is great info. Thank you for making the video. I do have a question. I have a 2013 Silverado with a 4.8 motor. I have noticed that my fan does not seem to kick in until after it’s gone a little past the halfway point on the gauge. is the fan supposed to be on constantly just a different speeds as it needs?
I noticed my fans not coming on, unless the air conditioner is on. It’s over 100° out. The truck is not overheating. However, after driving and allowing the vehicle to sit and idle The fans still do not ever come on unless the Air conditioner is turned on. I’m wondering if it’s possibly the relays or the thermostatic switch?
Temperature gage goes to about 240 before the fan kicks in and both of them spend but I know it’s been for too long and engage temperature returns to normal or why is it even going up that high it makes me nervous when I’m in traffic shouldn’t of been gone before it reaches that point
I have a 2011 silverado. Temp stays at 210 while moving. Stop for a few minutes temp climbs and fans do not start. Pulled plastic off all relays and they turn fans on. Installed all new relays to be safe. Still having the issue.
need some help! My cooling fan was only working when my AC was on. It wouldn’t turn on at all if it was off. Today the truck started to overheat a little. Pulled over and noticed the fans weren’t working at all. Got home turned it off and turned it back on and the fans started working again but only with the AC on. I live in Kansas today it’s 35 degrees. Could the weather have impacted this? I’m thinking of just replacing the relays to see if that changes anything before I spend $500 on a new fan assembly. What y’all think?
Hey thanks for the info but my fans come on only with the ac button on once I turn it off they shut off and I change all relays and fuses look good I have a 2013 v6 Silverado
@lehew tech During the Summer heat, my 13 Silverado fans were kicking into high speed upon remote starting and the ac was ice cold. As of now, the fans always go into medium and or low speed. Everything is working good, I tested by troubleshooting all relays and fuses. Coolant is good and gauge never goes past 210. Just wondering as to why the fans won’t go into high speed again. I have owned three Chevy trucks and all of them have always gone into high speed fans upon starting the engine with ac on and the fans help to keep radiator cool and the ac is noticeably colder when running
Hello I have a 2010 Silverado , I use my truck for like 10 mins and fans turn on and stay on almost the way I’m driving and they loud and temp doesn’t go up , only when I go up a hill temp goes like 210 I changed thermostat water pump temp sensor
I have an 08 silverado. My fans turn on fine when the AC is on but once I turn it off the fans will stop and truck overheats to where it spills antifreeze. I had the temp sensor changed twice. Any help? Thanks for the video btw.
My high speed is never kick on even when temp reach 108c,, but when i remove the fan relay control(black color) the passenger fan wil go on high speed and when i reinstall the black relay, both fans will be on high speed. Is this relay problem?
Fans are fine. Replaced fuses and relays, still no go. Unplugged coolant sensor, fan kicks on but ac won't work. Replaced the sensor still no go. Checked wiring are good. I'm stumped
Hello I have a situation -/ my cooling fan just work when the AC on its work but when the ac off the heat goes over the middle until I start the Ac on or I drive the car in the road.. this happen when the car stop like stop for the street lights signal My care is chevy Silverado 2007 Thank for your efforts
During the Summer heat, my 13 Silverado fans were kicking into high speed upon remote starting and the ac was ice cold. As of now, the fans always go into medium and or low speed. Everything is working good, I tested by troubleshooting all relays and fuses. Coolant is good and gauge never goes past 210. Just wondering as to why the fans won’t go into high speed again. I have owned three Chevy trucks and all of them have always gone into high speed fans upon starting the engine with ac on and the fans help to keep radiator cool and the ac is noticeably colder when running
@@usugibomb no sir. It works in medium speed when the weather is like semi-warm, and it kicks into high gear when the weather is super hot here in Texas.
I have the same issue with my 13, I’ve noticed the high fans not coming on anymore. Both fans do work but medium to normal speed. I’m also in Texas and should kick on in this heat to cool the cab , any luck on your end with a fix?
So if i wire them directly like the way you said will it be ok to leave it like that? because i been having problems whit my electric fans,the hi speed won't kick in and i don't know what to do, tank you.
What i did was Eliminate the cables that are connected to the computer that send the signal and I put a ground wire to each of the eliminated cables, when turning the low speed and the high speed together they turn the fans on high
So only passenger side works on high speed changes relays nothing changed I noticed when checking power at fans the fan that is not working both sides are hot
07 low speed fans stopped working I replaced both low and high relays also fan controller relay. Fans turn on late they won't turn in till 215 not 210. With ac on both fans are on high speed temperature stays steady at 210. I'm gonna try and just the terminals for low to see if the fans turn on. Pressing the air recirculation button used to turn the low speed fans on but now it doesnt.
Nice video. Lately my temp has been jumping from normal 210 to ~230/235 when driving or parked, then back after awhile. I don't know where to start. I noticed the fans were not on when I started the truck but apparently they don't always remain on. ¯\_(ツ)_/¯ I'm trying to research about the coolant system.
@@imequationzyt very low coolant level...if any. I filled it back up and it stopped jumping. But radiator may have a small leak that needs to get replaced soon.
also another possibility if you jump the pins and the fans work, and relays seem to be good, it could also be the coolant temp sensor thats making the fans not kick on at all
Wouldn't the fan still turn on when you turn on the ac? Even if the coolant temp sensor isn't working?
Great video. Loved the fact that you moved slowly and deliberately. So many people make these videos, and they talk too fast and move too fast and jerk the camera around. Please make more of these types of videos. You have the knack for it.
Thanks, Helped in a pinch. Had to do the wire jump at relay point to get fan running to make it home, 120 miles. Kept engine at 215F and lower in south TEXAS yesterday
Thank you so much for being so clear and going straight to the point on your video. Got the problem solved in no time 💯
what was the problem of overheating
@@samuelrivera9122 one relay was bad so I replaced it, also a fuse and the connection of the fan was not connected properly
What a pleasure! Excellent audio. Clearly presented. Easy to follow and apply the info. Thanks. Ben
thank you so much, it's great that there's people like you that do informational videos I fixed my fan just by taping on it and unplugging and plugging back in the connection
Your instructions are very easy to understand! I'm having problems with my Tahoe 2010, sometimes the temp will spike up 2-3 lines while cruising or during traffic stops, then back to normal temp after 10 mins. Flushed the cooling system, bought a new radiator, thermostat and expansion tank, $200 later temp still spikes up. I noticed that during temp spike (overheating) episode, my passenger fan is still off and will intermittently turn on and off. Need to check my fan and relays. Thank's a lot for your video!
Did you ever figure it out? I’m having the same problem.
I've got a 5.3L 09' gmc sierra 1500 ... I've noticed for the past two wks that both my electric fans have been running at high speed non stop. Coolant level was a bit low but topped it off & still runs high. Also my truck has never over heated yet ✌️
Did you find the problem?
this was the best video ive seen in a long time... very clear and instructive!!
wow:) thank you so much, my truck has been over heating, and I think the fans aren't kicking in but now thank to you I can check a few things out
Very helpful. I have a 2015 tahoe ltz that is having an issue where the fans are running wide open. I replaced the engine coolant temp sensor like everyone recommends but it is still doing it. I've had the engine cooling fan relay go out on a jeep before and assumed that this was originally what was wrong but I couldn't find the engine fan relays. They're not labeled by GM in the book or on the lid. Also appreciated your recommendations for trouble shooting the relays.
Hey did you find the location of those relays mine is doing the opposite fans are on low speed only after replacing the stat and ect
@@mollywapyo to tell you the truth I ended up double checking my wiring on the coolant temperature sensor and it had come loose. That was my problem. But i know that there are fuses and relays behind both sides of the dash inside the door jam end of the dash. I never checked those.
Thank you, I was having issues with high temp on my transmission oil. and was very worried about why my engine bay is so hot. and saw when the high fan is turned on, only the driver side was running and the passenger side is not running at all, but when the fan speed are low, both of the fans are running.
This is great info. Thank you for making the video. I do have a question. I have a 2013 Silverado with a 4.8 motor. I have noticed that my fan does not seem to kick in until after it’s gone a little past the halfway point on the gauge. is the fan supposed to be on constantly just a different speeds as it needs?
The best video you saved my machine. 🎉
Your a life saver. I was sweaten pertty bad until I followed the steps. Thanks.
Very informative video! I will be troubleshooting my cooling issue this weekend. Thanks
Im Having trouble checking my Fan on a 2011 Silverado,
It only turns on when i turn on the ac
I noticed my fans not coming on, unless the air conditioner is on. It’s over 100° out. The truck is not overheating. However, after driving and allowing the vehicle to sit and idle The fans still do not ever come on unless the Air conditioner is turned on. I’m wondering if it’s possibly the relays or the thermostatic switch?
Temperature gage goes to about 240 before the fan kicks in and both of them spend but I know it’s been for too long and engage temperature returns to normal or why is it even going up that high it makes me nervous when I’m in traffic shouldn’t of been gone before it reaches that point
Lo solucionaste?
My high speed fan won't not kick on I replaced the relays all 3 of them n the temperature sensor n noting I jumped them like you said n they turn on
I have the same problem. Did you ever find a fix ?
Me too high fan won't cut on.
I have a 2011 silverado. Temp stays at 210 while moving. Stop for a few minutes temp climbs and fans do not start. Pulled plastic off all relays and they turn fans on. Installed all new relays to be safe. Still having the issue.
Im dealing with the same problem
Same here but realized it is normal for temp to go over 220
@@Navasangrybird you sure it’s normal? Cuz u freak out everytime I see it goin up lol
You ever figure it out
Great video straight to the point and easy to follow!
need some help! My cooling fan was only working when my AC was on. It wouldn’t turn on at all if it was off. Today the truck started to overheat a little. Pulled over and noticed the fans weren’t working at all. Got home turned it off and turned it back on and the fans started working again but only with the AC on. I live in Kansas today it’s 35 degrees. Could the weather have impacted this? I’m thinking of just replacing the relays to see if that changes anything before I spend $500 on a new fan assembly. What y’all think?
having the same problem. u ever got it fix?
Thanks I fixed my fans 👏🏾👏🏾👏🏾
What about if the fan kicks on after 220 degrees can you help me please thanks in advance
2013 silverado fan runs all time temp gauge is at 160, info engine hot ac turned off ive changed thremostat
Hey man my fans only run when I turn on my AC I just replaced my fan sensor and my fuses are good. Any ideas?
Did you find out what was your issue mine only runs with ac also but everyone once in a while it won't
I got the same problem only turns on with the a/c
Mine work good Until I put on the AC then just a driver side works fast 💨 What can I do
Any luck my dads truck started doing this today
Having the same problem anyone figure it out?
Hey thanks for the info but my fans come on only with the ac button on once I turn it off they shut off and I change all relays and fuses look good I have a 2013 v6 Silverado
Wow life saver! All it needed was a lil knock on the head👏🏼👏🏼👏🏼
hello how are you doing I have issues with my ac the driver side blowing hot air you think will be the blend doors actuators our the fuses
@lehew tech During the Summer heat, my 13 Silverado fans were kicking into high speed upon remote starting and the ac was ice cold. As of now, the fans always go into medium and or low speed. Everything is working good, I tested by troubleshooting all relays and fuses. Coolant is good and gauge never goes past 210. Just wondering as to why the fans won’t go into high speed again. I have owned three Chevy trucks and all of them have always gone into high speed fans upon starting the engine with ac on and the fans help to keep radiator cool and the ac is noticeably colder when running
Hello I have a 2010 Silverado , I use my truck for like 10 mins and fans turn on and stay on almost the way I’m driving and they loud and temp doesn’t go up , only when I go up a hill temp goes like 210
I changed thermostat water pump temp sensor
I have an 08 silverado. My fans turn on fine when the AC is on but once I turn it off the fans will stop and truck overheats to where it spills antifreeze. I had the temp sensor changed twice. Any help? Thanks for the video btw.
I’m having the same problem on my 2012.
Do you fixed it
Do you figure out thank you
Having the same issue with my 2012
Me as well my 2012 Chevy Silverado 4.8 1500
I have 06 and the fans won’t shut off and drains the battery. Is this a bad relay or a computer issue?
which of the relays are faulty? is it fixed now?
Bad relay
I have a 05 Chevy Silverado 1500 and I am currently experiencing the same issue, I am gonna see if changing the fuses solves the problem.
Very well done, thank you tons
I have the problem of after 2mins of running from cold start both fans turn on full blast. Ive changed the thermostat and temp sensor. Any ideas?
So if u jump the high speed relay only one fan works at high speed ??
Found out the relay was getting hot and bad for the ac fan so swap it out but still having to tap on it to stay on😢
My high speed is never kick on even when temp reach 108c,, but when i remove the fan relay control(black color) the passenger fan wil go on high speed and when i reinstall the black relay, both fans will be on high speed. Is this relay problem?
Thank you for your video it really help me out
My right side fan will only come on if I turn on heat inside the trucks. Only overheats in park after about 10-15 mins.
How would I be able to wire a fan for an aftermarket transmission radiator with fan. JEGS High Performance Transmission Cooler
Thank you.
Very good explenation. 👍 My fans does not kick on when i turen the AC on? I checked both relays and the fans , they work. Do you have any ide ?
Any idea why the high fan won’t come on. Even when I turn a/c on.
When my cooling fans come on, power lost for millisecond in dash area( radio, other electronics....)
Maybe relay or fan going bad
Your thoughts
Did you solve the problem? Maybe your alternator is starting to fail and not charging and supplying the recommended power for the electricals.
What if the fan runs on high all the time?
With the AC on? That's normal for these. Otherwise it's most likely a faulty engine coolant temperature sensor.
Can you swap the relays for troubleshooting while the car is running or should I turn the car off before swapping
Fans are fine. Replaced fuses and relays, still no go. Unplugged coolant sensor, fan kicks on but ac won't work. Replaced the sensor still no go. Checked wiring are good. I'm stumped
AC relays, then Ac pressure switch, then check AC freon levels, then AC clutch.. check in that order.. peace
Fans come on with ac switch but not bythemself is there some kind of temp sensor they use as a switch?
I have a problem with the fans draining my battery when they turn on. Brand new battery and alternator. Battery voltage fluctuates.
Hello
I have a situation -/ my cooling fan just work when the AC on its work but when the ac off the heat goes over the middle until I start the Ac on or I drive the car in the road.. this happen when the car stop like stop for the street lights signal
My care is chevy Silverado 2007
Thank for your efforts
Did you manage to find out the problem on your silverado?
Mine too you guys find out the problem
My cooling fans are loud! Any advice would be appreciated
Is it normal that my fans move slow instead of fast with loud noise
How about if both fan work only with the ac on ?
Did you get it figured out? Same issue
Awesome. Just Awesome!
My works but only when i turn the ac on my truck overheats a little becua they wont kick on
Did you ever figure this out mine is doing the same
I got the same issue!0
My truck 2018 gmc the fun work only when disconet the cable for sensor
What happened if the fans don’t turn on..when it hits halfway on temperature..but only if I turned on the ac then comes on..
I have the same issue with my 2013 Chevy Silverado?
it will turn on at spprox 220 degrees both at low speed
Hello I put a paper clip on fan one and paper clip got super hot within seconds? Is that normal
During the Summer heat, my 13 Silverado fans were kicking into high speed upon remote starting and the ac was ice cold. As of now, the fans always go into medium and or low speed. Everything is working good, I tested by troubleshooting all relays and fuses. Coolant is good and gauge never goes past 210. Just wondering as to why the fans won’t go into high speed again. I have owned three Chevy trucks and all of them have always gone into high speed fans upon starting the engine with ac on and the fans help to keep radiator cool and the ac is noticeably colder when running
I'm having the same issue. Did you find a fix?
@@usugibomb no sir. It works in medium speed when the weather is like semi-warm, and it kicks into high gear when the weather is super hot here in Texas.
I have the same issue with my 13, I’ve noticed the high fans not coming on anymore. Both fans do work but medium to normal speed. I’m also in Texas and should kick on in this heat to cool the cab , any luck on your end with a fix?
@@robertm8484 truck is gone
So if i wire them directly like the way you said will it be ok to leave it like that? because i been having problems whit my electric fans,the hi speed won't kick in and i don't know what to do, tank you.
I have the same problem
What i did was Eliminate the cables that are connected to the computer that send the signal and I put a ground wire to each of the eliminated cables, when turning the low speed and the high speed together they turn the fans on high
@@mauriciohernandezreyes2189 did you do that on all the relays or just the hi speed relay?
I agree with Sean 👍🏽👍🏽
Sweet vid. Helpful
Thank you for this video.
Gotta check my relays and fuses .
So only passenger side works on high speed changes relays nothing changed I noticed when checking power at fans the fan that is not working both sides are hot
I’m having exactly the same problem, did you figured it out?
Mine just dont go on but my truck stays right at 210 and dont over heat
Great video Thank you
07 low speed fans stopped working I replaced both low and high relays also fan controller relay. Fans turn on late they won't turn in till 215 not 210.
With ac on both fans are on high speed temperature stays steady at 210.
I'm gonna try and just the terminals for low to see if the fans turn on.
Pressing the air recirculation button used to turn the low speed fans on but now it doesnt.
Quick question.
When I turn on the ac should at least one of the fans run at high speed?
It should be turning on more frequent when you turn on the ac
How do I fix a problem if the fans stay on when the engine is turned off and no key in the ignition?
Change the thermostat.
How is there no fix to this
I jumped all the relays with a wire and only the driver fan was running and it was slow
Are yu the best thank😊
What if both aren't working??
You should check the group wire connection
Nice video. Lately my temp has been jumping from normal 210 to ~230/235 when driving or parked, then back after awhile. I don't know where to start. I noticed the fans were not on when I started the truck but apparently they don't always remain on. ¯\_(ツ)_/¯ I'm trying to research about the coolant system.
Same problem! Ever find out what it was?
@@imequationzyt very low coolant level...if any. I filled it back up and it stopped jumping. But radiator may have a small leak that needs to get replaced soon.
2006
👍💐
is this a 4.8 or a 5.3? also would the fuse’s or relays lay out be the same?