Question about 2002 Pontiac Grand Prix

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Leaky thermostat housing

Need to know what to take appart to replace thermostat

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This is an awkward job. Remove air box out of way, now there's two ways to approach this, you can remove exhaust cross tube not recomended or you can use socket,universal and extension and try to remove the bolts from under the exhaust cross tube. I know it's probably not what you want to hear but its the only way with out making a mountain out of a mole hill, hope this helps.

Posted on Mar 18, 2009


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Your question is not very clear, but I will do my best to help you. The hose that connects to the thermostat on the engine block could be leaking or the thermostat housing (inside it is the thermostat) has a leaky gasket. Either way, change out the hose or the gasket!

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Hi Will, Look at the engine and follow the top radiator hose to the place where it enters the engine. Where it connects is the thermostat housing. The domed part is what you are looking for, but if you don't know what it is and what it looks like how do you know it needs replacement? Regards John

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My car is dieing well it is running and is very hot i have a leaking coolent hose but always top it up when its needed. what could be the problem?

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Nov 28, 2010 | 2006 Ford Fusion

1 Answer

I think i have located the thermostat but there is something mounted about it that would have to be unbolted in order to get to the thermostat, does anyone know what this is and if i can get to the...

You state that you think you have located the thermostat. The part that will need to be unbolted and removed is the thermostat housing. Simply remove the radiator hose and remove the bolts holding the housing in place. You may need to tap the housing gently to break it loose. The thermostat is located in the housing. Be sure to carefully scrap off any remaining gasket on the thermostat housing and the engine where the housing sits. Replace the thermostat and install a new gasket, replace housing, tighten bolts evenly and reattach radiator hose. Top off the radiator to replace any lost coolant.

Jun 28, 2010 | 1998 Mercury Sable

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Need to replace thermostat housing in a 2000 pontiac grand am 2.4L. I know where it is but I need to know about any precautions and what is involved in the process,

Engine should be cool

Catch leaking anti-freeze from thermostat housing hose when disconnected (if any)

Good idea to always disconnect negative battery cable anytime working under hood for extended period

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Oct 01, 2009 | 2000 Pontiac Grand Am GT

1 Answer

Leak near the gasget on my van

Its always a good idea to replace the thermostat housing every few years as they warp,if you dont have the extra cash you can remove the leaky one,and put the new thermostat in the block put a thin layer of good silicone around the stat,take another thin layer and apply it to the housing then you really dont need a gasket but you can still use one with this method,replacing the old bolts is a good idea also and that way you can tighten them correctly with no fear.have a good day DB

Feb 14, 2009 | 1995 Ford Windstar

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