11-15-2006, 07:48 PM
I have a 99 Grand Am SE with the 3.4 V6 in it. I have been experiencing a lot of heating problems. first of all it has 106,000 miles on the engine. its still running the dex cool. about 2 months ago the waterpump blew and it overheated . i changed it, and it was fine, except in hot weather in traffic it'll hit bout 230 on the temp, hang for bout 1-2 mins then come back down 2 about 210. then all of a sudden about 3 weeks ago the car overheated again. i ended up flushing the whole cooling system, changed the coolant and thermostat, and its still overheating. i can only drive it for bout 10 mins before it starts climbing red line, in the cold bout 15mins. i noticed some bubbles forming along the intake manifold gasket. Could that be the problem, or is there something else? Could it b a problem the first gen 3.4 engines? any help would be greatly appreciated.