GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

DEFINITION: The transmission cannot be shifted out of gear.

1

Remove the transmission. Refer to Transmission Replacement.

Are the gearshift components properly assembled?

Go to Step 2

Go to Step 3

2

Are the gearshift components worn, bent or broken?

Go to Step 4

Go to Step 5

3

Disassemble the gearshift components. Properly assemble the gearshift components. Refer to Shift Control Assembly Replacement

Will the transmission shift gears?

System OK

Go to Step 5

4

Replace the worn or damaged parts. Refer to Shift Control Assembly Replacement.

Will the transmission shift gears?

System OK

Go to Step 5

5

Disassemble the transmission geartrain. Refer to Transmission Disassemble.

Look for worn, broken, or damaged components.

Replace all worn, broken, or damaged components.

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