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calvinray 1/20/2013

2004 Pontiac Grand Am GT 6 Cyl 3.4L


Why does my car keep overheating?

I have changed the thermostat, water pump, and even the overflow jug, yesterday I ha trouble getting it to start. Yesterday as well a lot of white smoke was coming from my exhaust pipe as well.

2 Answers


Jimm 1/20/2013

The white smoke out of the exhuast is usually an indication of a leaking / faulty cylinder head gasket - that is the engine is leaking coolant directly into the combustion chamber.
To check and confirm this - have an inexpensive compression test performed to check the cylinder sealing integrity.

Sarah Spark

Sarah Spark 1/30/2013

Your exhaust system seems to have an issue, the heating and the white smoke. You need to have it checked, There could be a leaking of gases, leading to incomplete combustion hence the white smoke. Consider repair or replacing the exhaust system. There are some fair deals for exhaust systems online like http://4wheelonline.com/jeep/Jeep_Exhaust.48283


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