C 3500 HD Truck 2WD V8-6.5L DSL Turbo VIN F (2001)
Drive Belt Tensioner: Testing and Inspection
Inspection Procedure
Notice: Allowing the drive belt tensioner to snap into the free position may result in damage to the tensioner.
Important: It is normal to see movement in the drive belt tensioner while the engine is running.
1. Remove the drive belts from the pulleys.
2. Position a hex-head socket on the belt tensioner pulley bolt head.
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 tensioner.
5. Install the drive belt on the pulleys.