GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value

Yes

No

DEFINITION:

The transmission does not shift into one gear.

1

Remove the transmission.

Refer to Transmission Removal or to Transmission Removal .

Check for worn or damaged gearshift components.

Are the gearshift components OK?

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Go to Step 2

Go to Step 3

2

Disassemble the transmission.

Refer to Transmission Disassemble or to Transmission Disassemble .

Look for worn or damaged synchronizer assemblies.

Replace all worn or damaged parts.

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--

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3

Replace the worn or damaged gearshift components.

Refer to Transmission Disassemble or to Transmission Disassemble .

Will the transmission shift gears?

--

System OK

Go to Step 2