Hello everyone! Im new to the forum. I have 2010 hummer h3 and when I start to drive, clicking noise starts to appear. its speed related. at some point it abruptly stops at about 20-30 mph then reappears and then at 40mph it stops again. Here are some videos links:
https://youtube.com/shorts/bHBy9-u9NkM?feature=share
https://youtube.com/shorts/iZc0csCYj7c?feature=share
Thank you in advance!

 

Expect a visit from Doc Olds...he is one of the premier minds in this H3 forum.

 

I MOVED this for you to the H3 Section where all H3 Tech questions belong. Welcome to HF. When asking any question, Year (you supplied that), Miles, and any recent work done just before the problem complained about, as well as Model of H3 would be helpful for best responses.

I am just a GM car guy, premier weekend beer consumer, and general motorhead enthusiast.

Quite a racket you have going there. Driveline? Is it regardless of on the throttle or coasting, braking, do those make it change.

Depending upon miles, might be a front driveshaft rear CV joint. Video distorts the actual sound, has a strange shutter component so.......... when was the last time you changed the Trans Fluid and Filter, T Case fluid, Diffs?

 

Got it. Im looking forward to any help. thank you!

 

Hello, Doc Olds! I appreciate your prompt reply. Im a small dealer actually. just got this hummer couple of days ago.
Unfortunately, I dont know about what has been done to it so far.
Ive already inspected most of suspension components on the lift with the wheel of the ground.
I even removed front driveshaft and drove with out it and that rythmic racket is still there, no change.
its speed related. when just in park and idling, no noise. when I start even slowly to move its start slowly tick tick tick tick tick, speed related.
at around 20-30 mph it abruptly stops ,reappears and then disappear completely over 40mph.
front driveshaft u joints seem ok, feels solid.
Also, when wheels of the ground, I listen with stethoscope to the transfer case and the noise comes from there most definitely.
I have a guess, maybe its a shifting fork? so far Ive read,that its common issue.
Thank you once again for your response!

 

How many miles???

 

sorry ,its 156k miles.

 

Sounds like a worn cv joint.

 

Im afraid, its not cv joint, unfortunately. inspected those and plus the sound comes from transfer case most likely. but thank you for your suggestion!

 

How does the transfer case produce a clicking noise? The front diff can: