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flutter from exhaust

This is a discussion on flutter from exhaust within the General Help forums, part of the LSx Technical Help Section category; I have a 2000 Z28 running straights and muffler dumps. When driving, I hear a flutter from the exhaust. Has ...

  1. #1
    Junior Member LS1BL's Avatar
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    flutter from exhaust

    I have a 2000 Z28 running straights and muffler dumps. When driving, I hear a flutter from the exhaust. Has anyone had this problem before? Let me know your thoughts?

    Thanks ,

    Bryon

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    Bone it like you own it FORD RECOVERY EXPERT's Avatar
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    Define Muffler dumps.... could be a leak sucking air?

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    Junior Member LS1BL's Avatar
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    Quote Originally Posted by FORD RECOVERY EXPERT View Post
    Define Muffler dumps.... could be a leak sucking air?
    It has long tube header, off-road x pipe, and Magnaflow bullets open right before the rear axel. That might be it, now the hard part is finding it

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    Bone it like you own it FORD RECOVERY EXPERT's Avatar
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    Look the exhaust over for black spots around the welds... also, a cigarette can help, blow the smoke near the suspect areas with the engine running... it will show the leak in the smoke... Same method can be used on a vacuum leak, it will suck the smoke in at the leak.

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    Smiles for 9.5 Years cammed goat's Avatar
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    Quote Originally Posted by FORD RECOVERY EXPERT View Post
    Look the exhaust over for black spots around the welds... also, a cigarette can help, blow the smoke near the suspect areas with the engine running... it will show the leak in the smoke... Same method can be used on a vacuum leak, it will suck the smoke in at the leak.
    ^^This.

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    Junior Member LS1BL's Avatar
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    Thanks guy, I will try it out maybe tomorrow or Monday. I will let you guys know.

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    Member bberretta's Avatar
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    Had the same thing with mine after I did the header install. Small leak around one of the clamps. I'm going to guess you also removed the AIR and EGR- check the vacumn cap on the back on the back of the intake manifold. Could be the cause of a vacumn leak.
    2000 Pontiac Firehawk #0041 of 742

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    Junior Member LS1BL's Avatar
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    Found the problem! One of the hangers got pushed into my x-pipe and it left a pretty good size hole in it . I hit one of those things at the gas station that you they fill the tanks with, I am pretty sure thats how it happened. Thanks for your help guys.

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    Veteran 0rion's Avatar
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    glad you found it but I was going to ask how you hear anything with that set up.

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    Junior Member LS1BL's Avatar
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    Quote Originally Posted by 0rion View Post
    glad you found it but I was going to ask how you hear anything with that set up.
    Haha ya its ridiculously loud. The only time I can really hear it is when a car is right beside me and in on the gas, cause it echoes i guess. I hopefully will get it patched up this weekend.

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    Smiles for 9.5 Years cammed goat's Avatar
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    Are you going to have the hanger re-welded or getting another X-pipe?

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    Junior Member LS1BL's Avatar
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    Quote Originally Posted by cammed goat View Post
    Are you going to have the hanger re-welded or getting another X-pipe?
    Gonna unbolt it from the bottom of the car, bend it back, then weld the hole shut and then re weld the hanger back on. My buddy welds pretty good (on his Srt-4's and Neons) .

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