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Old Feb 10, 2009 | 09:48 PM
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corvettegt's Avatar
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Default c6 2008 automatic
has any one out there had thier car make a loud pop noise like a
back fire when you jump on it,& then it lose some power?
one day going up the fwy.ramp,i punched it & looked in the rear view mirror. a highway patrolman was right behind me & i let off of it & it
back-fired. need help
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Old Feb 10, 2009 | 09:52 PM
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I think the cop took a shot at you out his window for punching it on a ramp.

To answer your question. No, no backfires here.
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Old Feb 10, 2009 | 09:53 PM
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Only backfires I've experienced happen after Taco Bell
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Old Feb 10, 2009 | 10:08 PM
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Originally Posted by KenHorse
Only backfires I've experienced happen after Taco Bell
That didn't answer the question though. No I have not experienced that.
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Old Feb 10, 2009 | 10:11 PM
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None here...yet.
May be timing issue....
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Old Feb 10, 2009 | 10:15 PM
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any service lights? check spark plugs and wires. Then check timing. then check fuel injectors? You are not burning the extra fuel for some reason or another. Do you Have a Tune on Car? Could be a bad tune also.
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Old Feb 10, 2009 | 10:30 PM
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Originally Posted by NYC6
I think the cop took a shot at you out his window for punching it on a ramp.

To answer your question. No, no backfires here.
Great response very funny. No backfire here either.
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Old Feb 10, 2009 | 11:08 PM
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I smell a troll.
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Old Feb 10, 2009 | 11:25 PM
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That happens to me often, 08 auto. I notice it when I have my npp in loud setting and I hit it then let off the gas - backfires like hell.
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Old Feb 11, 2009 | 07:06 AM
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Originally Posted by ramrodw30
That happens to me often, 08 auto. I notice it when I have my npp in loud setting and I hit it then let off the gas - backfires like hell.
Backfire and throttle let off burble are different things.
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Old Feb 11, 2009 | 07:31 AM
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my 08 a6.. never happened yet
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Old Feb 11, 2009 | 11:49 AM
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Not here as well yet...usually on the old cars when that happened under acceleration it was fuel starvation....perhaps a checkup on your fuel pattern is needed???? just a guess....good luck....so far I have not had one problem with this 08 vert and we love it.....
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Old Feb 11, 2009 | 12:17 PM
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Never on my 08.
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Old Feb 11, 2009 | 01:18 PM
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Originally Posted by HotRedC5
Never on my 08.
same here
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Old Feb 11, 2009 | 01:23 PM
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Originally Posted by NYC6
Backfire and throttle let off burble are different things.
Thanks for that clarification, but I am not talking burble, it backfires like hell. It happens specifically if I get on it let up then accel again, it's repeatable. For whatever reason, gas fumes are apparently getting into the exhaust and igniting.
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Old Feb 11, 2009 | 01:31 PM
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Originally Posted by HotRedC5
Never on my 08.
also. Burble, not backfire, when the NPP is open, otherwise nothing.
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Old Feb 11, 2009 | 01:36 PM
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When you got on it, do you think you might have hit the rev limiter?
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Old Feb 11, 2009 | 03:00 PM
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My C5 auto would pop when it shifted from 1st to 2nd WOT. It would spin the ties causing the engine to hit the rev limiter.
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Old Feb 11, 2009 | 05:29 PM
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Originally Posted by RadarP3C
When you got on it, do you think you might have hit the rev limiter?
Definitely not even close. Accel briefly, let up then accel again - happens almost every time.
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Old Feb 12, 2009 | 11:49 PM
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what is the npp? g.t.
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