Mechanics

HEATER

2005 Chevrolet Avalanche • V8 4WD • 180,000 miles

Heater blows cold air for about 20 minutes before it heats up
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Marshall35@fuse.net
December 3, 2010.




Check the air blend door and actuator if okay could be coming from the HVAC control module itself

Rasmataz
Dec 3, 2010.


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