I took my 95 quad 4 Grand Am into the garage this morning, and based on my description of what has been happening they warned me up front that I could have a cracked head and/or head gasket. The car has been running warm, but not with any consistency. One day it will be fine, the next it be run warm, there is almost no way to tell. Anyways, I called them back, cuz I hadn't heard from them, and they said they are unable to find any problems. I asked them about the head gasket and they said the head gasket and head was fine, no leaks. They also said the water pump was running fine, and the thermostat and radiator fan were just replaced last week. They took it out for a ride, and said it did not run warm. Sometimes when I go out on the highway for a bit then I get off and get into start/stop traffic, the temp will creep up over half, and almost under the 3/4 mark. I dodn't think this is normal. WHen this happens I can smell the antifreeze, and I know it will boil over soon if I don't stop or get moving again at a decent speed. I have only had the car 3 months, but it never did this until about 2 weeks ago, so something has definitely changed. The garage said they will take another look at it tomorrow, and I said as a last resort perhaps they could do a radiator flush. Is there anything else that anyone can think of that I should have them check. Or any other reason why it might start running warm all of a sudden. The part that drives me nuts is that it is intermittent, and they can't find anything wrong. Please, any help would be much appreciated.
P.S. If you need any more info, read my thread below entitled "Grand AM Overheating"
Regards, KDAwg