GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

1

Inspect the shift rails.

Are the rails damaged, worn or missing parts?

Go to Step 2

Go to Step 3

2

Repair or replace the shift rails or any missing parts.

Does the transmission still slip out of gear?

Go to Step 3

System OK

3

Disassemble the transaxle and repair as necessary. Refer to Transmission Case Disassemble in the M86/M94 Section of the Transmission Unit Repair Manual.

Does the transmission still slip out of gear?

Go to Transmission Replacement

System OK