Rainier AWD L6-4.2L VIN S (2005)
Drive Belt Tensioner: Testing and Inspection
Drive Belt Tensioner Diagnosis
Inspection Procedure
1. Remove the drive belts.
Notice: Allowing the drive belt tensioner to snap into the free position may result in damage to the tensioner.
2. Position a hex-head socket on the belt tensioner pulley bolt head.
3. Move the drive belt tensioner through it's 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.
