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2007 Chevrolet Uplander Question: Heater will not blow warm air when car is stopped or parked, but will when moving.

 

Question

CCCJ, Houston, TX, January 08, 2011, 09:10
 Rookie

when I am moving down the road the heater works fine at every setting, but blows cold air when stopped at a light or parked.

also rear air quit blowing all togeather. where is the rear air blower located on my uplander or is there another problem?

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  • Answer #1

    mrtrans (see my shops), January 10, 2011, 12:22
     Technician

    Check your engine coolant level, it's probably low. Your heater core uses the heat off of your engine provided by your engine coolant.

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  • Answer #2

    Visitor, February 19, 2011, 13:35

    Sounds like you are low on antifreeze. If the level is low, the car does blow cold when the car is idling. Most likely this is an inexpensive fix that should remedy your problem.

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