2004 Z71 Clicking Noise

[a1parrothead]

Hello everyone,
My 2004 Tahoe Z71 has started making an intermittent, strange noise that seems to be coming from the under carriage towards the rear. I thought that bumps caused it, but not so sure now as it made the noise on asphalt and it lasted 20-30 seconds, but I could not pull over in time to jump out and look,
I first heard it on a bumpy gravel road. All of the sudden it made a loud clicking noise that lasted 10 seconds or so. The sound is like when we were kids and put a card on our bicycle spokes. It is a rapid , loud clicking noise and again, is intermittent and seemingly unpredictable. It does not seem associated with braking or accelerating, and in fact, When I pulled over to try and jump out and look that time, it was still doing it when I was not moving.

I have looked underneath carefully to rule out any heat shields/guards, exhaust etc, Additionally, I am convinced its not suspension related since it was still doing it when I was stopped.
Very strange and hard to explain. Any help would be appreciated.

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please. If we can't see it, it does not exist.

I cannot personally assist you with your issue, but other members of this Forum much more knowledgeable than me in this area will chime in.

@NickTransmissions is our resident transmission expert, and he will chime in with his thoughts and perspectives, regarding if this could be related at all to your transmission.

 

[NickTransmissions]

Doesn't sound like transmission - any transmission noises would sound as though they're coming from underneath the driver, either directly below or in the area of the transmission tunnel towards the engine depending on where in the case the noise was coming from.