1. Remove the drive belt. Refer to Drive Belt Replacement .
2. Inspect the drive belt tensioner pulley.

Is the drive belt tensioner pulley loose or misaligned?

Go to Step 4

Go to Step 2

Rotate the drive belt tensioner.

Does the tensioner rotate without any unusual resistance or binding?

Go to Step 3

Go to Step 4

1. Use a torque wrench in order to measure the torque required to move the tensioner off of the stop.
2. Use a torque wrench on a known good tensioner in order to measure the torque required to move the tensioner off of the stop.

Is the first torque reading within 10% of the second torque reading?

System OK

Go to Step 4

Replace the drive belt tensioner. Refer to Drive Belt Tensioner Replacement .

Is the repair complete?

System OK

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