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Power Strokes
6.7 Aftermarket
16 exhaust issue?
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[QUOTE="6.7Bison, post: 1557937, member: 32432"] Likely an exhaust leak. The rear manifold studs are known to break. The manifold can then separate from the gasket and produce a squealing noise under higher exhaust pressure similar to what I think you are trying to describe. Can be repaired by yourself and the right parts. I swapped my exhaust manifolds with the BD ones when I replaced my turbo as a precaution. Might give you an excuse to upgrade the turbo while you have it out. Obviously could be a leak somewhere else too, but what you described has me leaning manifolds. I will have to defer on the oil leak as I am not as familiar. I have heard that a clogged CCV box can cause oil leaks though. [/QUOTE]
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16 exhaust issue?
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