Possibly bad crank damper not absorbing the harmonics causing the rattling sound you are talking about under load. I had a mack etech with a code for erratic timing sensor after replacing sensor and checking everything else i put a balancer on it and it cured it. The crank broke six months later.
cat 22-11 code help
Discussion in 'Trucks [ Eighteen Wheelers ]' started by kgktm, Jan 26, 2011.
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What was the outcome and fix to your problem?
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Did you ever find what the problem was? -
you ever found out what the problem was? I know this is a really old post but I'm having the exact same issue with my truck
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