Pontiac Montana Problem Report
Pontiac Montana Coolant Leak & Engine Overheating
A coolant leak may develop from the water pump. The engine may overheat as a result of the coolant loss. A leaking water pump should be replaced.
I am loosing water out of the resivor about every 2 days.The temp gauge keeps reading hot - Visitor
temp gauge topped out into the red zone when at an idle. thought it was a relay or bad fan. shop trouble shot to a leaking water pump and replaced the water pump and did a coolant system pressure test, flush and fill. Two days after I got it back, it showed signs of coolant leakage (it has never had any leaks in the past) and now the radiator is wet at both corners and coolant is dripping. - Visitor
Coolant leak at left front under radiator cap. Found leak at radiator core tank seam. Replaced radiator core. - poptopp
Just started leaking about 5 days ago... engine overheating, heating system obviously effected now and currently rushing to get repaired. - Visitor
Engine Coolant light has came on for twice in two weeks, I've replaced it every time the light has come on. However, it seems that there is a leak somewhere between the reservoir and the radiator. - Visitor
Same thing - Visitor
Replaced the radiator, water pump, and tstat. Didnt overheat for about an 30 min drive then on the way back home started to overheat. The thing acts like there is a restriction in the water flow al...
first week heat went out. we flushed the heater core. heat wrked for 4 days. heat went out and...
is it a big job to install water pump
The intake manifold gasket may develop and external engine oil or coolant leak. In some cases,...
How do you fix the line that leads to you gas tank. My is leaking when you pump the gas