Had a similar issue and was going to change both the sensor and the thermostat being they are next to eachother.... Decided to chang the thermo first as I'm an old timer and have owner my share of vehicles and never had a coolant sensor go bad. Changing the thermostat did the trick for my situation. Great video appreciate you taking the time to do it!

Appreciate this video because you showed how simple this was and the part was only 15.99 a shop was trying to charge me 150 to 200 dollars to install this part? And was trying to tell me to change my radiator also. Big ups for video you just saved me alot of money.

Good, short, concise video. Told me all I needed to know. Thanks!

Read this first……. All of these videos are missing this. If the fan stays on after shutting off the engine and comes on immediately and never indicates it’s warming up, it has a code 128, (which does not give you a check engine light). So first reset that code, the fan will immediately turn off. The problem causing it may be intermittent, so watch the temp gage, if it goes to around 180 but never gets up to a normal range, it is the thermostat partially allowing water to get out of the engine before it reaches the proper temp. The ECM will allow this without a code into it reaches a point where the water is just too cold, then it will lock a code 128. At that point the fan is going to stay on until the code is cleared. To verify it’s the thermostat and not the sensor, compare the temp of the top rad hose under normal situation around 210, to the hose when it is indicating 180…. It won’t be as hot because the sensor is working but the thermostat is malfunction. Verify this before replacing your genuine GM sensor with an unknown aftermarket. Buy the original AC Delco thermostat from Rock Auto for around $40. If it’s the sensor, then when the gage reads 180, the top hose will be hotter, since it should be 210. The reason most of these videos show that after the sensor change, the fan stays on is because they are not resetting the code, the ones where the fan shuts off after is because they disconnected the battery, which reset the code. So then they think they have a fix, but if the vehicle temp doesn’t stay around 210, it’s the thermostat!

Thank you so much... Best video I found on this... My 14 Silverado just had this happen today... I'll be fixing tonight.

Mine was in a slightly different location on my '14 Silverado, but I was able to locate it and change it in about 5 minutes. Thanks for your help!

Thanks for a short video and straight to the point 👍🏼

omg! ty so much for posting this. I saw another vid but they didn't clearly show where the sensor was located!!! thanks again!!!

Thanks you for posting this video. The dealer wanted to charge me for $390.00😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢

I will try it . Mine happened yesterday. Thank you so much.

Allow your engine to fully cool before removing this sensor!! If your coolant is still hot you can seriously injure / scald yourself!!!!

Nice information, short and to the point!

About to give this a shot right now. Mine started doing it a week ago.

Your the 3rd person I seen on here with that sensor issue other night went to store shut off my truck and my damn fans was still on and I drove it back home my temp stayed on 160 so thank you for that info

Thank you for saving me trip to the mechanic.

Thank you very much! Did this repair myself and saved $200.

Great video saved me a lot of head ache thank you

Thanks for the common problem quick fix

Great video! My 2014 started doing this. Off to the parts store I go! Thanks!

Thanks for the video. The only thing I would add is that on a 2016 Chevy Tahoe, the ECT sensor is right next to the thermostat and in a tight space. So when you remove the harness plug from the sensor you need to be aware that you just cannot pull off the harness cap. It is snapped in place. So you have to first remove the light colored horizontal plastic piece from the harness cap so you can pinch the black release tab when pulling off the harness from the sensor. Otherwise, just pulling it off could damage the plastic harness cap.

Thanks for your straight forward tip sir

Right on gonna try this tomorrow.

Nice!! Yall need to make more videos😎

Same happening with my truck. Staying at 160, and fans blasting away. I noticed when this happens, I can turn my Max my heat and the gauge will start working again. Thx for video. 👍

Nice job!

thanks for the video it helped me a lot 🙌🙌

Thanks Man! Appreciate you!

Thanks man. Unfortunately just replacing the sensor didn’t stop the issue for me

Great video thanks Brother!

Is there a second engine temperature sensor other than the coolant sensor that is beside the thermostat? Any ideas on where it would be located?

Mine had the same symptoms. I unplugged the battery and plug it back in and it went away. I got the sensor ready for if it happens again.

You’re awesome sir thanks!!

Video Very well done

Thanks King!

Awesome thank you Sir 🤘🏼

Bet that up family! Job well 👍

Good job.

Best video for a 2015 suburban

Thanks same thing on my chevy 2014 starting and fan start to work like engine hot but isn't.

Worked for me

Bro explained thee exact problem with my truck

Great job, fellas… Same thing was happening to my 2014 Silverado. You literally just saved my wallet from having to take it to a mechanic and spending unneeded cash on something so simple.

Same issue. New thermostat and coolant flush a year ago so thats not it. Getting ready to change sensor. I saw where it could also be the AC as they are notoriously terrible in these trucks. I have been looking at a condenser replacement for over a year. The problem is that it is under the dash. AC low pressure switch may have something to do with it as I saw elsewhere. Will let you know how mine goes.

Which side is the wires side

I’m having opposite problems. Unplugged my coolant temperature sensor and fans worked. When plugged in fans don’t work. I’ve changed temp sensor.

Will this throw a check engine code? Having trouble with my fans not turning on(doesn’t over heat) ac isn’t working has new condenser/has refrigerant in the system tab help?

I have a 2016 Silverado Ltz and the radiator fan stays on the entire time the truck is running. Also the ac don’t get cold until 10-30 minutes. Then is blows super cold all day. I changed the coolant temp sensor and disconnected the battery for 10 minutes and it still doing the same thing. I’m not getting any codes and my gauge on the inside is reading correctly. Any ideas?

Is it bad to drive like this till I got time ?

Thanks daw

Did the gage moved from 160 after the swap? I just noticed that today on my 14 silverado.

Can I drive my car home like this?

Was the new sensor hard to catch thread?

did it break on you later on and had to change the thermostat housing altogether ?

I'm goin tru the same issue right now just replace my temperature sensor but my fans are still staying on all the time ans my temperature is staying at 160 as well I'm thinking about replacing the thermostat now since in my case wasnt the temperature sensor

Not working for me either the acdelco sensor , work for 10 min.. and same thing... 😫 i will look help from the dealership.

I'm having the same issue but it didn't happen until I changed the headlight bulb for some reason idk

I was driving my truck and suddenly stopped blowing cold air and the temperature gauge went all the way down to 160. And when I stop the truck the radiator fan kept working for like 3 minutes. I already changed the termostat and temperature sensor but still not working

I noticed the temp ant 160 when my ac wasnt cooling.. is this why ?

Stupid fast lol thanks bro

For those that after replacing the sensor/thermostat still experiencing the same problem. Did you clear the code? It flags a P0128 code. With out necessarily giving you a check engine light at the dash. Once I cleared the code the fans went back to normal and temperature gauge started working properly. Hope it works for you guys.

Just did this in the o’rileys parking lot

I’m experiencing the temp on the highway fluctuating 210, 215 sometimes 220 than back down. Took it to dealer no codes and they said it’s normal. Never heard of fluctuating temp on highway as normal. 🤦‍♂️

Have the same problem, changed the sensor and thermostat and still no fix

Hi, checkout my other video if this isn’t the issue: m.kzfaq.info/get/bejne/hNGBa9ljlc6sdmg.html if you’re reading 160 temp, try to get a reader on it and if you get code PO128 it’s your thermostat. If your overheating, likely its your WaterPump/Radiator/Thermostat.Also I had the video set to it’s kid friendly and youtube disables comments, so many messages of people saying they cannot comment!! Fixed it! Enjoy!!! #BOWTIETILLIDIE

How did you know it was that one? Chevy has 2 temperature sensors.

I replaced both the sensor and the thermostat, but the fan is still running after the truck is turned off. Anyone know what to do now?

Ya cambien el sensor y termostato y sigue igual que ago ahora

I did that and I thought it was fixed now 6 months later it’s doing the same thing

My 2015 fans still running even when my truck is off

Alguin que me ayude en eapañol?