# Clicking sound on my Suburban **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** chevrolet, suburban\ **Created:** [August 8, 2009, 3:35pm UTC](https://community.cartalk.com/t/clicking-sound-on-my-suburban/34691 "2009-08-08T15:35:30Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![rjjewett](https://avatars.discourse-cdn.com/v4/letter/r/85f322/32.png) [@rjjewett](https://community.cartalk.com/u/rjjewett)\ **Post date:** [August 8, 2009, 3:35pm UTC](https://community.cartalk.com/t/clicking-sound-on-my-suburban/34691/1 "2009-08-08T15:35:30Z")
I have a 1994 Chevrolet Suburban. It has a new clicking sound when I turn on the ignition that lasts about 1 minute. It is a very evenly spaced sound coming from somewhere under the right side of the dash - probably in the air system. The sound stops after about 1 minute and does not come back until I shut off the engine. At that point it comes back for about another 1 minute. It does not seem to cause any performance problem in either the AC or the engine. My questionn is, what is it and how do I correct it? ---
**Author:** ![egmg05](https://avatars.discourse-cdn.com/v4/letter/e/ed8c4c/32.png) [@egmg05](https://community.cartalk.com/u/egmg05)\ **Post date:** [February 20, 2010, 7:30am UTC](https://community.cartalk.com/t/clicking-sound-on-my-suburban/34691/2 "2010-02-20T07:30:26Z")
I also have a 94 Suburban with the same sound. Mine does it when I turn off the car, It sounds like I left the turn signal on. I hope you get an answer so I could fix mine. ---
**Author:** ![rjjewett](https://avatars.discourse-cdn.com/v4/letter/r/85f322/32.png) [@rjjewett](https://community.cartalk.com/u/rjjewett)\ **Post date:** [February 20, 2010, 3:12pm UTC](https://community.cartalk.com/t/clicking-sound-on-my-suburban/34691/3 "2010-02-20T15:12:58Z")
The answer was a small gear which controls the outside/inside air vane located behind the glove box. That gear had lost one tooth.