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Drive Belt Tensioner Diagnosis

Drive Belt Tensioner Diagnosis


Step Action Yes No
1

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

Is the drive belt tensioner pulley loose or misaligned?

Go to

Go to

2

Rotate the drive belt tensioner.

Does the tensioner rotate without any unusual resistance or binding?

Go to

Go to

3


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

4

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

Is the repair complete?

System OK

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PRE-RELEASE