Silverado Radiator Fans Won't Turn Off? FREE FIX!
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- เผยแพร่เมื่อ 11 ก.ย. 2024
- The radiator fans on my Chevy Silverado 1500 stayed running when I shut the truck off. I tested the rad fan relays, fuses, and coolant temperature switch. I found out my truck's PCM connector was corroded! It'll will work on a 1999-2007 Chevy Silverado 1500, 2500, or 3500. SUPPLIES BELOW:
Supplies:
Electrical Contact Cleaner: amzn.to/2N9QYmo
Dielectric Grease (Spray): amzn.to/2LV58at
Dielectric Grease (Tube): amzn.to/3bGzwzZ
WD-40: amzn.to/38MSTFO
This is a 2006 Chevy Silverado 1500 4.8 V8 2WD.
This will work on a 1999-2007 Chevy Silverado 1500, 2500, or 3500.
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Check Out The FULL VIDEO: th-cam.com/video/upix0CLFpH0/w-d-xo.html
Matt i think i have the same problem as you. Problem for me is...where exactly is the PCM? I wish you used a pointer in this video.
You saved me today, was out of town this happened, exactly the problem! Much appreciated you the man!
That's awesome! It's such a hidden problem I had to share it.
Dude, this is the only video I found with this fix! Last time I hit puddles in this truck. You saved my glamis trip! Keep up the good work...
I'm glad! Thanks man. I knew it'd help someone.
dude this video is what finally fixed our fan staying on in the 2005 escalade . thank you so much! corroded in the same exact spot !
This fixed my issue 100%! Drove through some high water over the last couple weeks and there was moisture and corrosion exactly as you described.
Yup, a design flaw.
I can’t thank you enough I had the same problem and pretty much didn’t know what else to do until I came across your videos and bingo this was the problem I had I ended replacing the computer because some pins were broken after that my truck is fixed
You're welcome. I'm glad someone else had the same problem and got it fixed!
keep pumping the videos out i enjoy all your work for me what i like mostly is you have a gift youre so relaxed when the camera is recording you while you explain in detail .you are a natural well anyway i dont mean to rattle on ,so again thank you
Thanks! I will!
Thank you!!! This not only fixed my issue, but saved me lots of $$$
Awesome!
gonna give this a try. I did the efan swap on my 02 that has a blue green pcm swapped in it and the only solution I found on my own was removing the high speed fan fuse which did stop it and the low speed fans works well enough to keep it at temp. thought one of the relays might of failed but this is before dealing with the relays themselves
Thank youbvery much. I took mine apart and was actually water in there yet
Excellent find buddy
Thanks!
It has been raining all day and I came home to the fan running even with the truck off, I turned it off and back on and right as I turned it back on the fan shut off and I turned it off again really quick. That fixed the issue. 2015 Silverado
Same exact problem I had. This was it!
I’m trying figure out the issue
The knock sensor wells under the intake have water in them. The water travels through the wiring insulation and corrodes the PCM. The corrosion will come back if you don't seal the knock sensor covers and run new wiring.
i had same problem years ago i changed every sensor and so much other things trying to figure out what was causing the fans to stay on, finally had a guy tell me it can get junk in the computer and my last thing to try before giving up was checking the same area and the botttom had alot of nasty junk in there and found out the bottom pins were for the ground, once i cleaned up the truck started running right again.
Now my problem is fans and a/c wont come on... I used a powerprobe to make fans come on so i know they work, i changed all the relays, temp sensor, and still doesnt work....im starting to wander if there isnt more junk in the computer again somewhere...any ideas of what it could be?
dielectric grease is what you're wanting to keep them from corroding again.
Do you have to do a relearn or anything afterwards?
Matt, how do the blue and green plastic covers come off?
Little clips on the sides IIRC
But did it come back
It was fixed. The problem did not return.
I bout a 05 Tahoe from dealership 8k cash so far I have replaced front and back set of shocks brand new tires well the fan don't shut off now iv paid to mechanic s to fox it the cleaned Pins issue returns same day the deal ship made me pay 200 for them to look at it thy won't help me for sgit I'm now 10 grand in this thing I'm just lost no words I can't belive this fickimf Carlot doing me like this
That sucks! Yes it was fixed after I did this. Maybe they didn't clean the corrosion out of the connectors and just the PCM. Very hard to get the plugs clean.
@@MattsShop fans quite but still got code, gonna clean better when it is warmer
Would that be the cause of my radiator cooling fans not coming on at all unless I turn my A/C on, once the A/C is on my fans run on hi speed, my 05 chevy Tahoe temp gauge went all the way to the 3/4 mark without the fans coming on
Did you try to a new fan temp sensor?
@@MattsShop not yet I've been throwing alot of money into the Tahoe trying to play the process of elimination game but haven't come out successful yet, is the fan temp sensor located on the driver side of the block? If it's bad is there anyway for me to test the sensor before I go buy a new one?
@@MattsShop just bought the coolant temp sensor, after I get it installed I'll update on if it helped or not
Thats not fun. Yea the sensor is on the block of the drivers side behind the pullies.
@@MattsShop the new coolant temp sensor fixed my problem, the radiator cooling fans turned on by themselves at 215°F, thank you for your your help/advice
is this a redo?
Nahh, I just made a short tip version for people with this problem to find.
If I disconnect that PCM will it deprogramthe computer will I have problems starting it back
Not on 1999-2007 Chevy or GMC trucks. Other makes and models can cause problems.
99-02 don't have electric cooling fans.
Nope