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Fly by wire :Ls4 with Headers chim in PLEASE

   
Old Aug 5, 2010 | 02:47 PM
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Question Fly by wire :Ls4 with Headers chim in PLEASE
Questions for those with headers,under light to heavy loads under acceleration has anyone experience vibration on the pedal or noise comin from the CV's...I've had this problem for about 3months and it seems to be getting worse...

Now my question is since the headers and exhaust have been open up more allowing more air to free flow would this affect the fly by wire?Change of idle maybe???Or could my tranny or torque converter be the main problem,taking a dump on me...

Thoughts???Before I take her in to the dealership...
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Old Aug 5, 2010 | 03:34 PM
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Mine seems to be fine no vibration.
Tires, and or bent half shaft could also cause the viberation
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Old Aug 5, 2010 | 03:44 PM
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I get some pedal vibration from time to time. I attributed it to tires or suspension more than headers. But if you have really loud exhaust it might just be the right resonance and you're feeling it. Like how my headliner and center console rattle at part throttle... :/
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Old Aug 5, 2010 | 03:48 PM
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i dont have any headers but my exhaust causes the whole inside to rattle especially the middle console and the window pillars
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Old Aug 5, 2010 | 06:04 PM
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Originally Posted by Mels SS
Mine seems to be fine no vibration.
Tires, and or bent half shaft could also cause the viberation
Tires still got good tread,gonna be gettin sum new ones this wknd...Half shaft could be a problem from all the burn outs I do...

Originally Posted by AlabamaGuy
I get some pedal vibration from time to time. I attributed it to tires or suspension more than headers. But if you have really loud exhaust it might just be the right resonance and you're feeling it. Like how my headliner and center console rattle at part throttle... :/
That's how mine started,from time to time but got worse as time went on...In park I can rev the sh*t out of her and no noise or vibration on the pedal,in drive is when I feel it and hear it...Exhaust is pretty tame,except under heavy acceleration she growls and no vibrations inside the cabin area from the exhaust.

That's why I ask if it had anything to do with the Fly by wire,change of idle maybe???

Originally Posted by SSCoop
i dont have any headers but my exhaust causes the whole inside to rattle especially the middle console and the window pillars
Sh*t with straight pipe I believe that **** rattles everything loose,LMAO
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Old Aug 5, 2010 | 06:09 PM
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Forgot to mention happens when turning as well...
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Old Aug 5, 2010 | 08:25 PM
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The dog bone can cause the vibrations if you have aftermarket one that's real tight.
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Old Aug 5, 2010 | 08:29 PM
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Originally Posted by Mels SS
The dog bone can cause the vibrations if you have aftermarket one that's real tight.
I'd forgotten about that. It's actually what I attribute most of my NVH to. the short, billet DB and poly bushings.
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Old Aug 5, 2010 | 10:13 PM
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Originally Posted by AlabamaGuy
I get some pedal vibration from time to time. I attributed it to tires or suspension more than headers. But if you have really loud exhaust it might just be the right resonance and you're feeling it. Like how my headliner and center console rattle at part throttle... :/
i dont have my headers on yet... but man does my center console rattle
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Old Aug 5, 2010 | 11:31 PM
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Shorter DB not on yet,and poly bushing has been on for a while and never did it before...
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Old Aug 6, 2010 | 12:54 AM
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Mine does it, ever since GM replaced my steering rack, It happened's when costing/slowing down RPM's around 900....Goes into GM next week for the 3rd time for this.
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