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why does the fans not work when car is running (on the 1999 Montana car)
most likely a blown fuse or worst case the fan is no good. to the original question on why the air is cold at idle than warm during acceleration most likely low coolant is causing this
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Low Coolant Probably caused by a blown head gasket.
I had the same problem with my Montana until I had the head gasket replaced. It started the way you described for about a year and kept getting worse and worse over time. The worst part of it was that it began becoming noticeable at about 40,000 miles and I didn't have the head gasket replaced until about 67,000.
Good luck and have it checked for a head gasket leak.
What else can I help you with?
Why would a 96 Taurus wagon heater only blow when running at high RPMs and cool down when idling?
it has a partially clogged heater core.replace the heater core
Why does your heater blow cold air while idling but blows hot air while driving?
Low coolant, failed thermostat, partially plugged heater core...............
Why does the heat blow cold while idling and warm when driving?
Poor circulation probably due to a restricted (plugged up) heater core.
Why does heater blow cold air when car is idling?
The heating system doesn't get heat until the car warms up and the thermostat opens.
Why when idling does your Ford Contour 1997 heater not blow heat but when moving it does?
I own a 1997 Ford Contour and there was a recall a few years ago on the heater blower and resistor. Check out the recalls on the car.
Why does your F250 diesel 6.0 when idling blow cold air through the heater vents?
most likely it's a bad thermostat, or your vents not working properly.
Why does heater blow cold at idle only blows hot air when accelerating temperature gauge shows normal Chevrolet Impala 2008?
If the coolant level is okay, I would suspect a restricted heater core. Try flushing the heater core.
What causes a Pontiac Montana to blow cold air?
Could be low coolant, stuck thermostat, bad heater control head (if climate control)
Why does a car a Blow smoke when accelerating uphill and b after driving downhill blow smoke when accelerating back uphill?
its getting ready to explode. jump out quick
Your heater will not blow on your 1996 Ford Contour?
heater will not blow on a 1996 ford contour
Why does your heater not blow out warm air?
if the heater does not blow out warm air change the setting.
Why does the heater not blow air?
The heater does not blow air because it emits infrared rays that have heat molecules within them, thus releasing heat, not blowing it. A heater does not blow air becasue there is no moving air source within the heater. The heater emits infrered rays that cause heat to slowly flow out of the heater.
