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Old 12-20-2012, 01:36 AM   #1
Crocmania
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Default Hissing noise proflo exhaust

Is there anyway of stopping the hissing sound on a duramax at idle so it just has the nice v8 burble
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Old 12-20-2012, 05:53 PM   #2
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is it your turbo??? thats the only hissing i know of man
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Old 12-20-2012, 09:51 PM   #3
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I thought it was the turbo but its a very loud hiss it stops for about ten seconds every now and then at idle. It almost sounds like an exhaust brake is stuck on
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Old 12-28-2012, 12:14 AM   #4
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hmmmm i really dont know man that is weird
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2000 F-350
6" tuff country lift
37" bfg`s
20" rims
BD 6 position chip
Cold air intake
4" exhaust turbo back
after market headlights w/halos
Tube Steps
Aftermarket tranny cooler
Aftermarket Intercooler
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Old 12-15-2013, 11:14 PM   #5
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Hissing sound indicates a crack in the exhaust manifold, exhaust pipe or a leaking gasket. A chugging noise could mean a blockage in the exhaust system.
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Old 02-01-2016, 01:21 PM   #6
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was looking for this information, thank you guys for the post!
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