2005 Silverado Clicking Noise

[brentcausey]

I have a 2005 Silverado z71 4 door with 103,000 miles. There's a click coming from under the vehicle about every 10-30 seconds while driving ,and once the truck is turned off. It will stop after about 15-20 minutes. Seems like the more I drive, longer distance, hauling, it's louder and more frequent. If I'm sitting at a red light with the radio off i can hear it. It almost sounds like the normal oil dripping or whatever it is in the front of the vehicle, but it's louder and is coming from under the cab, I think.

[MT-2500]

There is a tsb on ticking noise under dash from ac/heater.
Does it do it with ac/heater on or off or both?

[MT-2500]

Also inspect exhaust system for noise.
If you can still hear it after engine is shut off.
This TSB may cover it.

Bulletin No.: 03-06-05-008D
Date: March 05, 2007
TECHNICAL
Subject:
Exhaust Popping/Snapping Noise When Vehicle is Hot, at Idle, or Immediately After Vehicle is Shut Off (Replace Muffler Heat Shield)

[j cAT]

Originally Posted by brentcausey

I have a 2005 Silverado z71 4 door with 103,000 miles. There's a click coming from under the vehicle about every 10-30 seconds while driving ,and once the truck is turned off. It will stop after about 15-20 minutes. Seems like the more I drive, longer distance, hauling, it's louder and more frequent. If I'm sitting at a red light with the radio off i can hear it. It almost sounds like the normal oil dripping or whatever it is in the front of the vehicle, but it's louder and is coming from under the cab, I think.

any noises under the cab / operators seat/ under the vehicle ,the abs could be going out..get under the vehicle and see if it is the box with brake lines going to it,,,on top of this is the abs module..