IVE BEEN GETTING A KNOCKING SOUND FROM BEHIND ...

2006 Chevrolet Impala

Tiny

ladyv527

November, 22, 2012 AT 7:22 AM

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?

FOUND 4984 RELATED QUESTIONS

No Heat

37 ANSWERS
5 IMAGES

1 Answer

Tiny

renaudTN

November, 27, 2012 AT 11:39 PM

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

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