my 2004 grand prix gtp is over heating??

Asked by Aug 17, 2015 at 09:01 AM about the 2004 Pontiac Grand Prix GTP

Question type: Maintenance & Repair

i have replaced the coolant sensor the thermostat and the coolant elbows...should i replace radiator or try to get a flush first??

5 Answers

97,595

I would go with a good flush, do it two times and see what happens, Did you check the pump to make sure its working correctly ?

i changed the water pump too. sorry left that out after i changed that thats when my coolant elbows busted.

3,775

And make sure you don't have air trapped in the system. Air pockets in the system will cause overheating issues.

How do you get the air out of the system

3,775

There is a bleeder valve on or near the thermostat housing. It can be a bit tricky getting all the air out. I've heard filling the system with the nose of the car pointed uphill helps a little, but I haven't tried it so don't know if its true or not. When all else fails it is sometimes worth the money to have a shop equipped with the proper vacuum tool do it because it simply won't cool properly if its not filled properly.

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