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PSA: I've seen three 6.7 Power Strokes in the last month with the same weird turbo whistle that wasn't there before.

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3 Comments
thompson.xena
Right, and how many guys just live with that noise thinking it's normal? That whistle is basically the truck begging for a proper look.
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pipergonzalez
Is it a high pitched whistle, almost like a tea kettle? My neighbor's truck started doing that last fall. He swore it was a boost leak, but his mechanic found a tiny crack in the exhaust manifold up near the turbo. It only whistled under load. Fixed it and the sound was gone.
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betty_sullivan31
Yeah, it's funny how often the obvious guess is wrong. Makes you wonder how many other little problems we misdiagnose just because the noise sounds familiar.
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