GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

DEFINITION: Wear at the outside ribs of the drive belt due to a incorrectly installed drive belt.

1

Inspect the ribs in the drive belt.

Do the ribs in the drive belt match the grooves in the pulleys?

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Go to Step 2

2

Replace the drive belt.

Refer to Drive Belt Replacement .

Is there still excessive wear in either outside groove of the drive belt?

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System OK