Tapping/clicking Type Noise

jake1530 · March 28, 2008

Hello all, I have a 2005 Sierra, when I am stopped (don’t notice when I am driving) I hear a tapping noise in my dash. It is a slow tapping noise not fast. Anybody else hear that? Thanks in advance, Jake.

bobf1234 · March 28, 2008

I hear the same kind of thing when I'm idling... Any idea about what it is would be nice.

nbscanuck · March 28, 2008

GM HVAC fans run all the time. Could be that? Also any CD/DVD player has cooling fan on the back could be that as well. The CD cooling fan on my old truck got some dirt in it, made so awful noises before it cratered.

99silverado1500 · March 29, 2008

The clicking noise is the vent actuators grinding if i am reading your problem right. There is a TSB out for what I believe would be the problem.

jake1530 · March 29, 2008

Thank You 99 Black, don’t want to sound dumb. What is a TSB? The noise doesn't bother me; I just want to make sure it won’t lead to a real problem down the road. Also how do you guys get pictures of your trucks in the post? I tried it and it read that the file was too big. Thanks again, Jake.