Operation CHARM: Car repair manuals for everyone.

Drive Belt Tensioner Diagnosis






IMPORTANT: When the engine is operating the drive belt tensioner arm will move. Do not replace the drive belt tensioner because of movement in the drive belt tensioner arm.

Notice: Allowing the drive belt tensioner to snap into the free position may result in damage to the tensioner.

1. Remove the drive belt.
2. Position a 3/8 inch drive wrench on the drive belt tensioner arm and rotate the arm counterclockwise.
3. Move the drive belt tensioner through it's full travel.
- The movement should feel smooth
- There should be no binding
- The tensioner should return freely

4. If any binding is observed, replace the drive belt tensioner.
5. Install the drive belt.