I have a thomping, pinging noise when I drive. It stops when I do. What is it? on 2002 Chevrolet Tahoe

This does not happen in reverse. on the inside it sounds like a bumping noise.

by in Cleveland, OH on August 06, 2012
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
2 answers
ANSWER by , August 09, 2012
You will need to have it inspected. There are over 40,000 moving parts on the average vehicle.
ANSWER by , August 09, 2012
What conditions cause the noise? anytime it's in drive and rolling forward? Only at certain speeds? under light/hard accelleration? Does the thumping speed increase with wheel speed,engine speed , or change at all with gear changes? Turning have any effect on the severity of it?Any other things you can think of that cause the sound to change? Let us know , maybe we can be of more assistance.