All transmission gears work except D?

Tiny
LJMCTYER
  • MEMBER
  • 2007 CHEVROLET SUBURBAN
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
Hi,

When you put it in Drive it just revs, doesn't move. Replaced the solenoids in the transmission and tried a new TCM but same issue. Any ideas on what it is? Thanks
Thursday, March 9th, 2023 AT 9:26 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,968 POSTS
When you put the transmission into drive, does the "D" light up on the dash? If not, then the gear range sensor needs to be replaced. Have you run the codes to see what comes up?

Here is a guide to help:

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

Also check the fuses# 34, 19 and 14 in the under-hood fuse panel. I have included the transmission wiring diagrams so you can see how the system works.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the images (below). Please let us know what happens.
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Friday, March 10th, 2023 AT 8:09 AM

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