2001 GMC Yukon Metal Clunk

2001 GMC YUKON
230,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
NEO_460
  • MEMBER
  • 1 POST
I hear a "clunk" sound when I press the gas and engage the car forward. It is louder (or appears so) when I move forward from a stand still versus coasting and then apply pressure to the drive train via the gas pedal. I don't think it is the actual transmission, as it sounds more to me like the drive shaft or rear differential. What or where should I check? Ideas? Much appreciated.
May 24, 2010 at 9:08 AM
Advertisement
Avatar
HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
have your driveshaft checked for u'joints. if you are going to do this yourself look for rust arund the seals of the caps. and then if you pull it off make sure they are free with no binding. It could also be play in the rear end that you are hearing as well. Especially with teh mileage of your truck.
May 26, 2010 at 9:18 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.