Ram Heavy Duty Forum
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Recent content by JCrancher
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J
"Purring" noise while coasting at medium speed
"Purring" noise while coasting at medium speed. The noise is like a surging, muffled rattle. It sounds like a giant cat under my truck. The type of noise is similar to the harmonics of a bearing that is shot, running smooth for a second and then rattling for a second. The amplitude of the...- JCrancher
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- Forum: 6.7 Cummins Standard Output