Mechanics

CHEVROLET IMPALA BLEND DOOR PROBLEM

2006 Chevrolet Impala • 144,000 miles

I've been getting a knocking sound from behind the dashboard every time I change from ac to heat since last year. Now my heat doesn't work. Does the knocking sound have anything to do with it? What could be the problem?
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Ladyv527
November 22, 2012.



It could be related. It sounds like something is wrong with the blend door/blend door actuator.

Tiny
RenaudTN
Nov 27, 2012.