heat works while accelerating, blows cold air when release gas

2003 BUICK CENTURY
125,000 MILES
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COURTNEYREDMOND
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  • 1 POST
I have had the radiator flushed and topped off coolant, blows warm air while accelerating but as soon as the gas is released the air begins to cool.
Nov 15, 2011 at 3:25 PM
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RASMATAZ
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  • 75,992 POSTS
Have the thermostat and air blend door checked out-
Nov 15, 2011 at 3:30 PM