1994 GMC Truck Trouble downshifting and accelerating

1994 GMC TRUCK
216,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
INDYKID77
  • MEMBER
  • 1 POST
When I drive up a hill or need to downshift to accelerate my truck runs rough the tach jumps around 2,000rpm and makes a bogging sound, i think it might be slipping but am not sure, i would rather try some other things before i drop a couple hundred on a rebuild, thanks
Jun 16, 2010 at 4:50 PM
Advertisement
Avatar
DR LOOT
  • ✓ASE Certified Mechanic
  • 2,311 POSTS
  • ASE Certified Mechanic
it sounds like he needs a tuneup
Jul 21, 2010 at 2:05 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.