Replace Thermostat in 2006 H3

[jjjerry23]

Check engine light pop on, got it check at autozone bad thermostat. Looking to replace it myself. Do anyone have a diagram, steps, or any helpful information about replacing the thermostat on my 06 hummer h3?

Thanks

 

[taylorblake831]

Yea mine turned on for that like 6k ago but it said stuck open and mine hardly ever moves above the 1/4 mark on the dash so I never really bothered to fix it but it is a little annoying and will probably end up fixing it in the near future because if it sticks open it will most likely stick closed when I'm on a trail somewhere knowing my luck


-TEXAS FOREVER-

 

[digglesworth]

If it's stuck open, it won't allow the engine to fully warm up. if its a cool morning and it doesn't warm up in a certain amount of time, it will throw a code. Around half or even a tad above half on the temp gauge is normal. 1/4 is too low. I pulled the drivers side inner fender liner to get to the t-stat. It took some extensions and swivels to get to the two bolts but changing it out is pretty self explanatory.

 

[poncho1965]

I also pulled the fender liner. It's an easy job. I do like the idea of relocating the Tstat as others have done.


Mike

 

[alrock]

desertH3 had a good write up, I think. Search for thermostat and his name, I think you'll find it. From what I call, it's pulling the fender liner, scraping a few knuckles. Extensions and wobbles will help.

 

[Humvee21]

Instructions attached

 

[scoreh3]

It's an easy fix . You will spend more time taking the wheel and inner fender off than you will swapping out the thermostat . Oh and the skinned knuckles part , yes that will happen on this repair . The price of a bandaid vs the price of a mechanic is well worth it .

 

[RamRod]

Instructions attached

Looks not too bad at all.

Guess you would need to have a catch of some kind set up as fell for when you remove the hose and all of the fluid that will come out.

Thanks for posting!

 

[digglesworth]

I had my girlfriend hold a bucket below the lower radiator hose to catch the coolant. Well... She caught it alright. All over the front of her. Lol. I think it was just my truck marking it's territory... Lol

 

[Happy Hummer]

https://sites.google.com/site/happyhummer01/thermostat--cts-replacement

Here you go. Full write up.

Chris