turbo noise while coasting - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 11-17-2009, 05:10 PM Thread Starter
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turbo noise while coasting

I hear a turbo noise after both are unspooled and i'm going 35-45 mph. sounds like blowing into a reed. This issue is not during regen.
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post #2 of 5 Old 11-18-2009, 12:18 PM
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Sounds like an exhaust leak.
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post #3 of 5 Old 11-20-2009, 04:31 PM
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Up-pipe leak, it only gets worse from there till it leaks so much it sounds like a tire going flat.

2008 F-250 FX4

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5" Flo-Pro Turbo back Exhaust
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post #4 of 5 Old 11-20-2009, 07:30 PM
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Or like mine, it went from a hissing to a BLAMO. I just about had a heart attack. I was accelerating, and I was irritated by my exhaust leak. And then suddely I had that 'open header' sort of sound as something gave way. My exhaust back pressure dropped to 0. The truck sounds wicked running a the 310 tune with open exhaust manifolds.

I thought I had a leak in my bellows, but it ended up being the flange that attaches to the right hand exhaust manifold. It broke entirely off. The flange is still attached, but the pipe up pipe is just hanging there.

Looks like a manufacturing defect to me.

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'08 F350 Dually KR - Spartan'd
'07 F250 CC SB 4x4 XLT - SCT /w Innovative Tunes
4 '09 & '10 E350 6.0l ambulances
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post #5 of 5 Old 01-26-2010, 06:49 AM
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Mine sounded like a jet engine it was awesome! I had a hard time fixing it. I miss that noise.
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