Over heating problem

Asked by Jun 01, 2014 at 01:26 PM about the 2001 Pontiac Montana Base

Question type: Maintenance & Repair

I have a 2001 montana we have changed the hoses the waterpump and the thermostat
bleed air out of the system as directed and it is still over heating ther are no leaks and the
radiator looks fine no holes or corossion we are put of ideas all suggestions welcome we
don't know what else to do

3 Answers

114,205

Have you checked your oil? Does it look like a milkshake? Also how old is your radiator cap? Might want to do an exhaust gas test on the coolant. If exhaust gas is found in coolant then blown head gasket.

2 of 2 people found this helpful.
95

Head Gasket problems are definitely a known issue with this vehicle and motor.

4 of 4 people found this helpful.
70

idk your mileage, but my Montana required new head gaskets at 80K, now at 170K having heating/overheating issues. had thermostat replaced, heater core flushed, and am not told heating assembly is cracked (?) I could smell antifreeze thru the cold air coming out the vents befor taking it in. I just read on a different site, Edmund.com, that there is an aftermarket auxillary coolant that often gets overlooked. This make and model seems to have a lot of heating/cooling problems. Any comments would be helpful

7 of 7 people found this helpful.

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