GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value

Yes

No

1

With the clutch pedal engaged, can the shift lever be positioned into all of the five gear positions?

--

Go to Step 2

Go to Step 3

2

Chech the clutch system. Refer to Unable To Select Gears in Clutch Diagnostic Procedures.

Is the clutch system opperating correctly?

--

Go to Step 3

Go to Unable To Select Gears in Clutch Diagnostic Procedures

3

Check the transmission for the proper oil level. Refer to Fluid Replacement and Lubrication Specifications .

Is the oil level correct?

--

Go to Transmission Replacement

Go to Step 4

4

Check the transmission rear oil seal for leaks.

Is the tramission oil seal leaking?

--

Go to Step 6

Go to Step 7

5

Add or replace the oil as required. Refer to Fluid Replacement and Lubrication Specifications .

Is the oil level correct?

--

Go to Step 7

Go to Step 5

6

Replace the transmission rear oil seal. Refer to Fluid Replacement .

Is the oil seal replaced?

--

Go to Step 5

Go to Step 6

7

Add or replace oil as required. Refer to Fluid Replacement and Lubrication Specifications .

Does the transmission opperate properly?

--

System OK

Go to Transmission Replacement