99 MC 3.1 rattle/knock

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99 MC 3.1 rattle/knock - 5/9/2008 11:44:15 AM    dirtrider   Posts: 2 Joined: 5/9/2008 Status: offline 130k, seems to be coming from the rear bank. lessens or goes away with a few rpm. Its there cold or hot. Sounds like a diesel pickup when at idle. Any know/comman problems with the valve train? Just wanted some suggestions before I tear into it. Alot less noise with the serpintine belt off but its still there.   G. Post #: 1

RE: 99 MC 3.1 rattle/knock - 5/9/2008 1:29:28 PM    shawnvw   Posts: 619 Joined: 1/18/2008 Status: offline Sounds like it could be a push rod knocking due to a collapsed lifter. (in reply to dirtrider) Post #: 2

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