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"Purring" noise while coasting
Exhaust manifold broken bolts. I've had a few vehicles have this problem. And when it's cold, the metal shrinks and the exhaust leak develops. In our cases, there was also some noise. Goes away when it warms up, the metal increases in size a little, and seals the leak. A trip to a mechanic...- zcapogna
- Post #9
- Forum: Heavy Duty
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"Purring" noise while coasting
jcmott, so I finally turned my RAM in for repair. I had a number of broke exhaust mani bolts and (for now) this got rid of my tranny noises. Sounds silly but I think we were hearing engine noises coinciding with down shifting...or whatever. In any case, its been months and the noise is gone...- zcapogna
- Post #6
- Forum: Heavy Duty
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"Purring" noise while coasting
Jcmott, you ever figure out cause? I also have 2016 with 120K and same exact problem.- zcapogna
- Post #4
- Forum: Heavy Duty
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Bass-like humming coming from speakers when reaching higher RPMs- Latest: canadiankodiak700
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