Rattling noise from timing belt tensioner at higher mileages on Toyota Corolla

The timing belt tensioner may make a rattling noise at a higher mileages. This is due to the adjustment being at its limit. Our technicians tell us the range of the adjuster may be lengthened by elongating the slot where the spring attaches by 2-3 mm to remedy this problem.
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Average mileage: (–)
3 model years affected: 1995, 1996, 1997
3 people reported this problem
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