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09-25-2008, 09:11 AM
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#1 | |
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AF Newbie
 Join Date: Sep 2008
Location: mio, Michigan
Posts: 34
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Exhaust Manifold
The donut where the manifold connects with the y-pipe is bad. I can move the y-pipe up and down. Would this cause a noise at idle.It almost sounds like a ticking.
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09-28-2008, 09:59 PM
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#2 | |
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GM S-Series Mod
 
Join Date: Aug 2005
Location: Westminster, Maryland
Posts: 2,650
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Re: Exhaust Manifold
Yes, a bad donut will cause an exhaust leak. You may not hear the leak at idle, but under load, it will sound just like a ticking. I recently changed my y-pipe and have encountered the same issue. If the y-pipe is not lined up perfictly, the gaskets will not seal. The gaskets are basically a metal donut and are about $10 a piece.
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2000 Chevy Blazer ZR2 Performance Mods: Numerous Suspension Mods: Some, but not enough Exterior Mods: Just Right 1987 Buick Turbo T Dark Red Low 11 sec sleeper  .030 4.1 block, PT6262E, & other odds and ends.... My Cardomain |
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09-29-2008, 08:48 AM
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#3 | |
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AF Newbie
Join Date: Sep 2008
Location: mio, Michigan
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Re: Exhaust Manifold
Actually its only at idle that i hear the noise.
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