Question about 2003 Pontiac Grand Am

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I had just replace the thermostat on my 2003 Pontiac it still over heating what can be the problem what can i do to fix this issue .. ??

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Youve replaced the thermustat in your car

your car may be air locked

remove the cap for the coolent bottle and let the car run for a bit you should get bubbling and a boiling sound comming from the bottle

worning: hot liquid dont stand too close while the bubling is going on wate till it stops then shut off the car

(keep a close eye on the temp gadge while the car is running after the air has bubbled out if thecoolent is low replace with the rite coolent

with any pontiac/chev vehicle its usually "DEX-COOL" its usually orange in color (dont put in the green stuff youll ruen your moter) if it calls for the other coolent (the green stuff) put that in and not the orange stuff

i hope this helps you i hope you get your car fixed

Posted on Aug 06, 2010


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yes but with the right shaped wrenches and tiny hands it can be done without removing the exhaust crossover pipe

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SOURCE: 2002 Pontiac Montana Thermostat replacement

check the coolant level fiirst...if that is low it wont give you any change the thermostat you have to follow the top radiator hose to the the send of it you will see a clamp take it loose...then you will see the thermostat housing its held in place by 2 bolts . once you remove them you have the thermostat....make sure you clean all the old gasket material off both the housing and mount.also make sure you get a new gasket.

Posted on Jan 29, 2009

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without more information on mileage or vehicle, thats the best place to start on this issue.

If you need further help, reach me via phone at

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