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My daughter had the same trouble with her 2000 escort. It was low on coolant.
2nd opinion: The most likely problem is the thermostat, which as I have read in here is a pain to get to.
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∙ 14y ago
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What causes a 2000 Pontiac Montana to overheat and have no heat at all?
Low Coolant. Poor coolant circulation. Intake gasket. Head gasket.
No heat Pontiac Montana?
Ask this question again. Is the question no blowing or blowing cold?
Why would the engine temperature in your Pontiac Montana 2000 not be rising despite driving 20 minutes the gauge does not rise and there is little heat to the cabin?
The thermostat is probably stuck in the open position.
Why would a 1997 Pontiac Transport Montana provide low heat inside even after the thermostat has been changed?
check the cabin filters inside the glove box, if theyre clogged that will cause low heat it happened to my wifes 2000 silhouette
Why doesnt the blower blow on a 97 Pontiac gtp theres heat but not enough?
Try checking your thermostat. It is probably stuck open.
Why would a 1996 Pontiac Bonneville's heater only blow hot air regardless of the thermostat?
The heat valve is stuck open.
Why would a 1998 Pontiac Transport Montana over heat when stopped after the thermostat coolant sensor water pump radiator intake manifold gasket radiator cap and all of the lines have been changed?
I have a 2000 Pontiac and my was doing the same thing. It turned out to be my heads were warped. You can smell it coming out of your tail pipe if it is your heads.
The heat and air in my 2000 Pontiac Grand Prix gtp does not blow is it the blower motor and what kind does it take?
If you have a Carquest auto supplier nearby, part #209283 (Blower motor w/wheel) and check the resister (if you only have high speed) also. Approx $200.00
1994 Pontiac Sunbird 2.0 engine When the car is warning up it has heat but after you drive it for mile you lose heat and it blow cold air have replaced the water pump and thermostat?
check the heater core
Why are the Heaters are not blowing any air?
my 2004 Pontiac vibe will not blow heat nor air, worked fine this morning but this evening it quit and won't do anything..
Why wont the heat blow in your 2000 grand am se heat worked yesterday?
Check coolant level check blower motor fuse Check the thermostat
My 94 explorer won't blow heat?
my 94 explorer wont blow heat
