0
What cause a 2000 Pontiac Montana to overheat at high mileage?
Chispa8185
I had this problem with my 2003 Montana, so naturally after checking the coollant, water pump, and serpentine belt, I replaced the thermostat.( not a fun job). This helped for a while, but I still did not get the heat through that winter that I was expecting. The van overheated the following summer, so back to change the thermostat again. ( I had used a failsafe thermostat, which according to one mechanic probably failed early, but might have saved my engine.) Anyhow, he also asked me if I had bled the system after changing the thermostat the first time. I had never heard of bleeding the cooling system, typically something I reserved for brake work. But there are 2 bled screws, one at the top end by the thermostat housing, the other over to the left of the engine. (follow the metal cooling line) These need to be bled to allow proper circulation or you will get air traps and coolant will not flow properly. Hope this helps.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What could cause a Pontiac Montana to shut off after 10 minutes but not overheat?
your radiator fan not getting power... make sure that you hear it turn on if not then you have to check the wiring or plug or the fan itself just died...
What causes Reduced Engine Power on 2005 Pontiac Montana SV6?
Reduced engine power, on your 2005 Pontiac Montana, can because by several things. The most common cause of reduced power is a lack of fuel.
IF you have a blown head gasket on a 95 Pontiac grand am will your car start?
The car will start but it will run rough and will probably overheat and cause worse problems.
What cause a 1995 Pontiac firebird cooling fan to stop working and overheat?
Blown fuse, bad fan motor, or defective Thermal Relay.
What would cause a 1995 Pontiac Firebird cooling fan to stop working and overheat?
Blown fuse, bad fan motor, or defective Thermal Relay.
How do you turn off service engine soon light in 2003 Pontiac Montana?
After repairing the cause of the code, you clear it with a scan tool.
Can a leak in the Thermostat housing in a 2006 Dodge Stratus cause the vehicle to overheat?
Any coolant leak can cause an overheat.Any coolant leak can cause an overheat.
If a thermostat remains open will this cause your car to overheat?
A stuck open thermostat will cause a car to run cooler than needed. It will cause oil to sludge, a loss of gas mileage due to running rich and numerous other problems.
What would cause water in oil on a 2001 Pontiac Montana?
first suggestion would be the head gasket which Montana's are notorious for having problems with, followed closely by a crack in your cylinder head or engine block
If your car is low on coolant does it cause it to overheat when using the air conditioner What else can cause it to overheat while the air conditioning is on?
Yes, low coolant will cause it to overheat without the AC; that is not the only reason that will cause overheating however.
What will happen if you have weak brake springs on a 1997 cavalier?
Your brake shoes can drag on the drum and overheat. This will cause premature brake pad wear and hurt the cars performance and gas mileage.
What would cause that all gauges temp gas mileage etc stopped working on a 1996 Pontiac grand am?
Check the fuse. It says [guages]
