Oh my God I'm so grateful that Chevy made a thermostat that didn't need RTV sealant!!! And thank you for this video I'm literally watching it right now because I'm about ready to do mine on my 2015!!
I'm not a huge GM fan but this is a good-looking truck. I do like this body style better than the new ones along with the Tahoe/Suburbans, and Yukon in this year range as well.
My truck is approaching 100k miles. I want to do a coolant flush....is it recommended to swap out the thermostat or if it's working fine just leave it alone?
2:47 on my 2018 Silverado my temperature always reaches between 180 and 190 sometimes 194 then it goes back down to 190. And that’s normal city driving. I’ve been told the engines been running too hot and I should look into upgrading my cooler aftermarket. What are your thoughts on this and do you think I’m just over thinking it
How many miles does that vehicle have? And what about the 4.3L V6 2014-2018 GMC... would you advise to change the thermostat and coolant sensor early before that problem comes up?
It had about 140k miles. And well, I would say that if it’s not broken then don’t fix it. It seems to be a common issue on these trucks but that doesn’t mean that every one will have a problem.
I was just wondering because I work next to a man that has a 2006 GMC Sierra 5.3L, and he told me he has never had any problems with the starter, water pump, thermostat, transmission, muffler, power steering, or nothing wrong with the engine like that and he has 315,000 miles on his truck. I just bought a 2017 GMC Sierra 4.3 myself and it has 25,000 miles on it, and I was wondered if it will last, or is that what to expect because I just had to replace the water pump on it, at 24,000 miles. Water pumps don't usually go out until after 100,000 miles.
@@jackhfletcherthanks! I used the motorad part you used in your video, it works great and I found it for $35 on eBay, way less than the AC Delco part. My engine heats up quickly and runs better!
I recently changed my thermostat and it heats up when i go and then cools down once i let off the gas. Could this be a faulty thermostat or is it something else?
@@jackhfletcher I’m gonna give it a shot. Seems easy enough, had my 6L80 rebuilt in September and it’s never gotten above 120 degrees on the trans fluid temp gauge. Coolant temp is running 175-180
Yeah, either the thermostat or it could be that the coolant temperature sensor is acting up. The sensor is directly next to the thermostat. But usually it’s the thermostat.
Can you provide the part numbers for thermostat & temp sensor? I’m replacing both just to be safe. Having the loud fan issue as well as random AC blowing ambient air.
Also, Rock Auto has several options. Some have different temperatures listed. The one in your video is 207° while others indicate that they open at as little as 160°.
You’ll probably just need one gallon of the concentrate (mix with water). If you’re using premixed coolant then I would buy two gallons just to be safe.
Oh my God I'm so grateful that Chevy made a thermostat that didn't need RTV sealant!!! And thank you for this video I'm literally watching it right now because I'm about ready to do mine on my 2015!!
I'm not a huge GM fan but this is a good-looking truck. I do like this body style better than the new ones along with the Tahoe/Suburbans, and Yukon in this year range as well.
Thank you so much bro saved me money, very easy and informational video, keep up the good work!!
Thank you! I’m glad I could help.
thanks for the straight forward info, easy to follow and understand.. thanks
What would it be if mine gets to 210 and goes a little above 210 then back down?
My truck is approaching 100k miles. I want to do a coolant flush....is it recommended to swap out the thermostat or if it's working fine just leave it alone?
Right on the money thank you for your help
Do you have a video on idling problems and a solution? Please help. I have a 2015 gmc sierra denali 6.2
My radiator fan doesn’t stop would you change the cooling temperature sensor first instead of the thermostat?
I’ve seen this problem and 9 times out of 10 it’s the thermostat. Sorry for the late reply.
Nice work 👍
Thanks!
2:47 on my 2018 Silverado my temperature always reaches between 180 and 190 sometimes 194 then it goes back down to 190. And that’s normal city driving. I’ve been told the engines been running too hot and I should look into upgrading my cooler aftermarket. What are your thoughts on this and do you think I’m just over thinking it
You’ve been told wrong information. 190 is nothing to worry about. These trucks will normally run 190-200 and it’s perfectly normal.
How many miles does that vehicle have? And what about the 4.3L V6 2014-2018 GMC... would you advise to change the thermostat and coolant sensor early before that problem comes up?
It had about 140k miles. And well, I would say that if it’s not broken then don’t fix it. It seems to be a common issue on these trucks but that doesn’t mean that every one will have a problem.
I was just wondering because I work next to a man that has a 2006 GMC Sierra 5.3L, and he told me he has never had any problems with the starter, water pump, thermostat, transmission, muffler, power steering, or nothing wrong with the engine like that and he has 315,000 miles on his truck. I just bought a 2017 GMC Sierra 4.3 myself and it has 25,000 miles on it, and I was wondered if it will last, or is that what to expect because I just had to replace the water pump on it, at 24,000 miles. Water pumps don't usually go out until after 100,000 miles.
Would you recommend spending more to get the ACDelco thermostat or does this moto rad part hold up just as well?
We’ve been using Motorad at our shop because the ACDelco has been on back order and they’ve been holding up perfectly. We haven’t had a comeback.
@@jackhfletcherthanks! I used the motorad part you used in your video, it works great and I found it for $35 on eBay, way less than the AC Delco part. My engine heats up quickly and runs better!
I recently changed my thermostat and it heats up when i go and then cools down once i let off the gas. Could this be a faulty thermostat or is it something else?
If it didn’t start doing that until you replaced the thermostat, then it’s probably a bad thermostat.
What brand are those OEM thermostats that keep going bad in those 2014-2018 GMC/Chevy trucks?
ACDelco
One would think a recall would be issued
Would this cause my transmission to also run too cold?
It’s definitely possible. I would address the thermostat issue first and then re-check the transmission temperature afterwards.
@@jackhfletcher I’m gonna give it a shot. Seems easy enough, had my 6L80 rebuilt in September and it’s never gotten above 120 degrees on the trans fluid temp gauge. Coolant temp is running 175-180
Had the same code come up and also the ac doesn't blow cold too. Does that happen with the thermostat
Yeah, either the thermostat or it could be that the coolant temperature sensor is acting up. The sensor is directly next to the thermostat. But usually it’s the thermostat.
Can you provide the part numbers for thermostat & temp sensor? I’m replacing both just to be safe. Having the loud fan issue as well as random AC blowing ambient air.
Also, Rock Auto has several options. Some have different temperatures listed. The one in your video is 207° while others indicate that they open at as little as 160°.
Be careful with small hose clamp to not put Any side pressure on Plastic nipple, it Will snap off
@Jack Fletcher- which city is your shop located in Texas?
We’re in Katy, TX. The name of the shop is Katy Auto Care.
How much coolant can I expect to use/need to replace?
You’ll probably just need one gallon of the concentrate (mix with water). If you’re using premixed coolant then I would buy two gallons just to be safe.
@@jackhfletcher Gotcha. Yeah I bought a gallon of 50/50 tonight. Thanks
@@kellykathymcdaniel7834 You could maybe get away with one gallon.
Wait till is cold bro 😂
I know right 😂
The new GMC sierra version still looks good. The silverado is ugly