Transmission

2009 CHEVROLET 2500
140,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
ROB HUGHES
  • MEMBER
  • 1 POST
Transmission will "bump" into gears only after highway driving. Runs great otherwise. If I turn off for a minute after highway, runs smoothly again.
Nov 5, 2017 at 5:56 AM
Advertisement
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
It sounds like you have shaft speed sensor going out but to be sure we must run the codes. Here is a guide to do so.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run this test and get back to us.

Cheers, Ken
Nov 6, 2017 at 1:48 PM