05 2.2L L61 Rattle or Scrapping Noise from Front of Engine - kw block chain debris knock oil tensioner timing

The following diagnosis might be helpful if the vehicle exhibits the symptom described in the PI.

Rattle or Scrapping Noise From the Front of the Engine - This noise occurs at very low mileage and may even occur prior to delivery to a retail customer. The noise occurs at the front (right hand side) of the engine. The noise occurs because the timing chain tensioner is inoperative. Remove the timing chain tensioner from the block and inspect the tensioner and block for debris, such as aluminum chips. If chips are found, disassemble the tensioner and inspect for chips inside the tensioner. If any chips are found inside the tensioner, replace the tensioner. If there are not any chips inside the tensioner, thoroughly clean the block and tensioner and reinstall the original tensioner, following the procedures detailed in Service Information.

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Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance.

(05 Chevrolet Cavalier) and (05 Chevrolet Malibu) and (05 Pontiac Grand Am) and (05 Pontiac Sunfire)

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