2

I have a 2005 Chevrolet Suburban 4WD 5.3 (208k miles) that has several loud taps when I accelerate moderately to hard. It only happens from slow or stop. I haven't been able to get the sound when flooring it after 20 mph. The sound is coming what sounds like directly below the cab or a little forward. Can't isolate which side and don't see anything obvious underneath. I power braked (in gear, holding brake) and was able to get it to happen once. Only happens when in drive. Happens in 4 low also.

Here is the video of it. I accelerate on 2 occasions and you can hear it at 3 seconds and 17 seconds,

Any ideas what it could be?

EDIT: Not sure if this has any bearing on it but when inspecting ujoints, saw this on transfer case output to rear

  • Judging by sound alone, it seems like one of the u-joints in either the front or rear drive shafts has gone bad. – Pᴀᴜʟsᴛᴇʀ2 Jul 6 at 2:21
1

Turns out it was the transfer case chain jumping. Put in a used transfer case and solved the issue.

Thanks for the help!

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.