MY GTP IS ALWAYS RUNNING COLD. I DO UNDERSTAND THE THE COLD SUBZERO TEMPS WE ARE EXPERIENCING HAS A LOT TO DO WITH IT BUT THE CAR NEVER GETS ABOUVE 160DEG. ANY SUGGESTIONS AS TO WHAT IS GOING ON?
LOW ENGINE TEMP. on 2002 Pontiac Grand Prix GTP
It sounds as if your 2002 Pontiac Grand Prix has a stuck open thermostat. If this is the case the service engine soon light may also be on as a result. Your Grand Prix should have a 195 degree thermostat and the normal operating temperature of the engine should be right around that number.
I have the exact same problem... thermostat was/is fine. I even went as far as to flush the system and replace the thermostat anyway just in case (yes, it is the OE temp thermostat rated to 195). Not to mention, I take care of this car like it's my child -- I keep up on all maintenance myself. Please help if you have any other ideas!