2002 Pontiac Grand Am Repair Question
Pontiac Grand Am Coolant Problem
Answer
It sounds lioke the thermostat is bad and you may have a bad radiator cap. You may also have some air in the system.
When you go to fill it up;
Let it cool off and remove the radiator capand then run engine with the heat setting on the climate controls all the way hot
Let it reach operating temperature and then top off raiator and reserviour tank
replace cap and take for a test drive.
If the thermostat, radiator cap and bleeding air from system do not sole the problem, get a coolant system pressure test done to make sure your system does not have a leak.
Thank you I will try that. I recently replaced the radiator, the resevoir tank, the cap, upper radiator hose. I dont understand why the coolant keeps rushing out when i shut the vehicle off
You might have a bad head gasket. So get the coolant system pressure test done.
Okay I will have to do that then. If it is bad this will be the 3rd head gasket ive had replaced in 2 years.
It is possible you have a crack in the cooling jacket. Or, maybe the head is warped. If you get it replaced again make sure they check the decking and check the head for warpage.