Cooling Fans running on high? 2015 Tahoe Coolant Temperature Sensor and Thermostat Replacement Guide
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- เผยแพร่เมื่อ 28 ส.ค. 2024
- My 2015 Tahoe started running the cooling fans at high speed after the truck was shut off. It was also reading nothing on the temperature gauge. In this video, we will guide you through the process of replacing the coolant temperature sensor and thermostat in my 2015 Tahoe. We'll cover everything from identifying the parts (🔍keywords: 'coolant sensor', 'thermostat', 'temperature sensor') to the actual replacement process. This guide is also applicable to similar models like Silverado, GMC, Sierra, Yukon, Chevrolet, and Suburban. This is applicable to most GM Trucks and SUVs.
Link to Coolant Temp Sensor I used: www.amazon.com...
Link to Thermostat I used: www.amazon.com...
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I've been dealing with this issue on my 2015 Yukon for a year and a half. I've put 5 thermostats and about 8 sensors in it, replaced the sensor plug...this thing is driving me crazy. Everytime I replace the thermostat and sensor its ok for about 2 months then starts the engine protect mode and gets more and more frequent. Tested the thermostats and they seem to work ok with the boiling water test, sensors seem to work with multimeter testing but once replaced it's only a matter of time until the issue starts. I started carrying a socket to pull the battery cable to reset the computer to buy a little more time and get the ac working again.
I’d look at replacing the plug on the sensor, sounds like you could have an issue there, or a chafe in the wire to the ECM possibly.
@@wecanfixit7308 I did replace the plug, it didn't resolve any of the issues. I'm going to start checking out all the grounds as I've seen other videos mentioning issues with them causing all types of different issues.
@@ncarlen3 grounds could certinly cause weird things. I had a random no start on mine forever that ended up being the negative battery cable. Of course I found this after cleaning every ground on the truck. Good luck!
O’yeah the good’O war stories from the wife. 😂 never mind the 100’s of good money saving stories you’ll have on DIY projects. I believe they’ll call that the motivational speech.
remember to pull the battery power to kinda reset everything
ask me how i know
Great point, thanks! I used a scan tool, but disconnecting the battery works also.
So, if the thermostat is changed and the there are still issues like the cooling engine going crazy can it be possible that the water pump could leak coolant ?
it would have to be a huge noticeable leak to uncover the temp sensor enough to create this issue
Im having this issue. Just happened tonight. Mine is a 2016 and 101k miles. 😢
Its an easy fix, good luck!
Replaced the sensor 6 times.. just did it today.. still getting the fan turning on... ugh!!!
Did you clear the codes? If so, then you've probably got a wiring issue.
It's the thermostat mind was doing the same thing once I changed it everything went back to normal
@@jpowerhands3607 I’d definitely change them both just in case.
How did you clear the code?
I have a cheap scan tool that reads/ clears codes
So did it actually fix it?
Yes, once the code was cleared after the repair was made, everything worked as it should.
@@wecanfixit7308 can you give the part numbers you used? I’ve seen where certain parts didn’t fix the issue
@@cagneydavis3528 I linked the parts I used in the description
Hi you think it may just be the coolant temp sensor and can I run it like this till I get around to do this weekend ?
@@Kriscerros should be fine, if your battery is weak, the fans might run it down