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is that a timing chain problem?


The V6 engines have a timing belt, not a chain.

Be sure to check that the crank pulley bolt is the new style, not the old. If it is the old style, it's possible that you are hearing the start of the bolt/pulley failure.


Mitsu # 6 - 98 6G72 Montero Sport, Locking Rear Diff, Aisin Manual Hubs, 31x10.5

Mitsu # 7 - 02 6G74 Montero Limited