Clicking noise coming from drivers side dash??

[bazooka]

Greeting Fellow Tahoe Owners!

I just bought an '03 Tahoe LS 2WD and there is a constant clicking noise (sounds like a relay clicking) behind the left side dash panel. It was not making this noise until after I took in in for a service at my fave independent shop. It almost sounds like a blinker relay or something.

work done was:
oil/filter change
trans service
air cleaner
plugs & plug wires
new serpentine belt
right front marker light bulb replaced
left rear tail light bulb replaced

Not sure whats going on, but its driving me nuts and I hate to have to tear into the dash.
Thanks in advance for any suggestions!
Zook

 

[dhulsey779]

Your actuator needs to be either cleaned / replaced. Common in the Tahoe's.

 

[bazooka]

Your actuator needs to be either cleaned / replaced. Common in the Tahoe's.

dhulsey779,
Thanks for the quick reply! Pardon my ignorance, but actuator for what? Any threads, pics or advice on where and how to clean it?

Thanks!

---------- Post added at 01:38 PM ---------- Previous post was at 12:58 PM ----------

Just did a search for actuator and found out the problem.
Thanks!

 

[moparbob]

Clicking Sound from Dash

My '03 Yukon did the same thing. Eventually, I figured out that it had to do with a certain selected air delivery location, hence the "mode" actuator was involved. I verified that conclusion by placing one hand on the actuator (above the gas pedal on the side of the A/C unit) while the noise was being made; the actuator was moving slightly to the cadence of the ticking sound. I had the local Chevy dealer replace the mode actuator for about $150 since I can't work up under a dash panel any more. The replacement solved the problem!

 

[rando_smash]

My 01 does this as well but only ever once in awhile, just a few clicks like the turn signal sound and its gone. How many actuators are in a 01 tahoe and how do I know which is bad?