Express 3/4 Ton Van V6-4.3L VIN W (1998)
Drive Belt Tensioner: Testing and Inspection
INSPECTION PROCEDURE
IMPORTANT: When the engine is operating the belt tensioner arm will move. Do not replace the belt tensioner because of movement in the 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 its full travel.
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The movement should feel smooth.
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There should be no binding.
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The tensioner should return freely.
4. If any binding is observed, replace the drive belt tensioner.
5. Install the drive belt.
