Question about 2002 Pontiac Montana
On the highway today , light comes on for overheat , temp up to red zone. Turned AC off. I stopped and let it rest for 15 minutes until it creeped down, drove for 10 , repeating this 3 times. Only had a few miles left to get home. On one stop I decided after 10 minutes of rest, to loosen the cap so maybe it would go farther with no pressure built up.
Carefully loosened cap and even though it was not at all down to normal temp, there was no burst or spray, just gurgling out when I took it off completely. At this point, when taking off trying to get to cruising speed of 65, the gas pedal was not responding properly and could not rev the engine . It did get to 40 - 45 miles per hr and would stay there as long as I wanted but would not speed up normally. It would rev in park however.
What would cause the , I think, false overheating reading, and then the loss of pedal power?
You guys have head gasket problems. Need to have heads checked for damage and have head gasket repaired. A good mechanic can do it in 16 hours on a montana,
Posted on Jan 29, 2009
You have gotten it really hot it sounds like, I would should check all my coolant levels as soon as it was cool and if you put water in it while it was hot you could have easily cracked a head. I wish I could be more helpful but if it didn't spew water out I am wondering if you have a leaking water pump or bust hose, or even if you could have a freeze plug out. Fill it up with water and let it sit and idle and see what happens. Good Luck, Hope this helps you! and Merry Christmas!
Posted on Dec 26, 2008
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