How to Replace Thermostat 3800 Series 3.8, 3.4, 3.1

How to Replace Thermostat 3800 Series 3.8, 3.4, 3.1

How to replace thermostat and change/ flush coolant on you 3800 engine.

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Racheal Garrett says:

Does this work on 2002 Pontiac Grand Prix?

Steven Thompson says:

yupp dex cool sux i spent hours cleaning all the dex cool junk out of my
engine new water pump new hoses new thermostat the works it runs so much
cooler with green and no dex cool build up clogging everthing up lol

Danielle Wynn says:

I’m getting a green screen that doesn’t show anything

Mattew10922 says:

thanks a lot man great video

Scott Smith says:

I read DexCool causes corrosion

Lyle Swatzell says:

you must not be much of a car guy if you think dex cool is “alright.” its
shit that rusts everything it touches. Why do you think they dont use it
anymore, and what do you think that buildup on your thermostat is from?

desertfox2020 says:

It’s not necessary like with some designs, but it’s still highly
recommended.

shadyswiss says:

do i really need to change and add fluid just to replace the t-stat?

king Shelton says:

so on the 3.2 i’m finding the housing bolts are on the side instead of the
top…makes it difficult especially on the bottom bolt. It’s such a narrow
area I can’t even get the socket in there….any suggestion?

22Skoop says:

Definately change that seal. It’s only a couple bucks at the auto store and
it can prevent leaks.

jamaldoss says:

Where exactly is the cork to drain the radiator i cannot tell from the video

ChiefxDavey says:

heres a question, i got the same engine in my mothers buick, when i changed
it the black seal was all wrecked and such, did i have to replace that seal
aswel?

Scott Smith says:

Do I need to do anything special to instal a 180 thermostat? or just put it
in place of the old one and your done?

crocopskick says:

So i have the p0128 code and it says the coolant thermostat is not working
so just change this and thats it? No need to reset the comp and will the
check engine light turn off by its self once the issue is fixed or do i
need to manually

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