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Knocking noise under dash - READ ONLY

20 messages,  Last post on Sep 14, 2012 at 5:35 PM

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What is this discussion about? Chevrolet Impala, Sedan

Messages Page 3 of 3

#13 of 20 Knocking Noise Under Dash by elkparkerjmp

Mar 05, 2012 (8:06 pm)

My mechanic immediately diagnosed, "Actuator!" when I described the knocking noise under the dash of my 2006 Impala. He recommended waiting until the heat/air no longer works before springing for the repair, and explained it won't be a cheap fix -- about $500 "because the dash has to come out". Although the racket is annoying, it only occurs when I turn off the engine -- and not every trip -- and usually winds down by the time I've climbed out and locked up.

#14 of 20 Re: Knocking Noise Under Dash [elkparkerjmp] by daves95maxima

Mar 18, 2012 (11:30 pm)

Replying to: elkparkerjmp (Mar 05, 2012 8:06 pm)
In the Impala all the mechanic has to do is drop down the glove box door and the actuator is right there and held on by 3 6mm screws very easy fix!

#15 of 20 Re: Knocking Noise Under Dash [daves95maxima] by dosj65

Mar 23, 2012 (7:09 am)

Replying to: daves95maxima (Mar 18, 2012 11:30 pm)
Thanks for the info! Definitely not spending several hundred $ to fix a 60 second noise and then it stops.

#16 of 20 Trunk message by dosj65

Mar 23, 2012 (7:12 am)

My 07 Impala's message center keeps flashing that the trunk is open. It started several weeks ago & yes the trunk is closed lol. Could this be a fuse that needs replacing?

#17 of 20 Re: Trunk message [dosj65] by gmcustsvcsarah

Mar 23, 2012 (8:23 am)

Replying to: dosj65 (Mar 23, 2012 7:12 am)
You can find information on your vehicle's electrical system (including diagrams of fuse blocks) starting on page 397 in your owner's manual. If we can be of any assistance, please let us know!
 
Sarah
GM Customer Service

#18 of 20 Re: Knocking Noise Under Dash [daves95maxima] by goldi1

Aug 06, 2012 (8:47 pm)

Replying to: daves95maxima (Mar 18, 2012 11:30 pm)
I just recently discovered this knocking sound in my 2008 Chevy Impala, I was told by a friend that this is something she heard in a similar car. Is this something that I can fix or is it best to have a mechanic do it? its started to get louder and sounds like now its in the venting and the dashboard! Help!
 
Damsel (IN DISTRESS!!!)

#19 of 20 Re: Knocking noise under dash [robert220] by luckygirl7133

Sep 13, 2012 (10:30 pm)

Replying to: robert220 (May 18, 2009 3:02 pm)
My 2006 does it, but it has gotten worse. Now it won't stop unless i turn the car off and it takes about 5 minutes before it does stop. And only HOT air blows out of my driver's side vents.

#20 of 20 Re: Knocking noise under dash [luckygirl7133] by gmcustsvcsarah

Sep 14, 2012 (5:35 pm)

Replying to: luckygirl7133 (Sep 13, 2012 10:30 pm)
Good evening luckygirl7133,
 
We're sorry to hear that you're having some troubles with your HVAC system; what are your plans for getting this looked into?
 
Sarah, GM Customer Service

Messages Page 3 of 3

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