Rumbling Noise, Possible Loss of Power on Mazda 929

Submitted by Vehicle Owner · May 29, 2025

Published by RepairPal

Problem overview

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.

6 people reported this problem

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Mazda 929 vehicles with this problem

6 model years affected

Repairs related to this problem

Timing Belt Replacement

Water Pump Replacement

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Rumbling Noise, Possible Loss of Power on Mazda 929

Problem overview

Mazda 929 vehicles with this problem

Need a diagnosis? Trust our Mazda experts.

Search for another problem

Ask our experts about your Mazda.

Need a diagnosis? Trust our Mazda experts.

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