Rumbling Noise, Possible Loss of Power on Mazda 929

Problem Description and Possible Solution

If a rumbling noise is heard from the engine, along with a possible loss in power, it may be caused by a collapsed hydraulic timing belt tensioner creating excessive cam backlash. Our technicians recommend replacing the timing belt and water pump at the same time, if they have not been recently replaced.

Problem Data
RepairPal Verified
Average mileage: (–)
6 model years affected: 1990, 1991, 1992, 1993, more1994, 1995
6 people reported this problem
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