2002 Pontiac Grand Prix 6 cyl Two Wheel Drive Automatic 177000 miles
My temp gauge fluctuates. It goes from overheating to back to normal. I have replaced my water pump, thermostat (195 degree), upper and lower radiator and heater hoses, and bypass hose. I have had the system flushed out a few times. I have bled the system out several times but still cant seem to get all the air out. I can drive the car about 30 minutes and then it spikes and then will drop. When it spikes I have no heat. I dont notice any leaks externally. I know that gm is famous for the lower intake gaskets being faulty. I also noticed after filling the radiator and then bleeding it and driving it for a little while it never spiked but I let the car cool and noticed the fluid was low in the radiator. I was wondering if you had any insight. The engine is a 3.1l.
have the same problem?
Saturday, January 31st, 2009 AT 8:50 PM