Results 1 to 5 of 5
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09-15-2011, 06:12 PM #1
- Join Date
- Sep 2011
- Location
- jackson, Ca
- Posts
- 1
black- 1999 Corvette
99 corvette with knocking noise - idles fine - good oil pres
Hi, new to site - just got this corvette - trying to find ways to take care of problem - other modifications to car include headers, items set up for racing, sheets of metal underneath floorboard, intake manifold specially done with someone's name on it.
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09-18-2011, 08:11 PM #2
Need more details on the noise, is it a big knock? Or a small knock? Does it increase when you rev the engine? Details man details!
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09-19-2011, 03:48 AM #3
- Join Date
- Jan 2010
- Location
- East of Cleveland, Ohio
- Posts
- 3,827
Black- 99 WS.6 - Modified
Agree, we could use a little better description. It could be something simple like an exhaust leak, to something more complicated.
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10-03-2011, 12:00 PM #4
i have a knock when i first crank mine up on cold mornings but goes away when it warms up and goes away as i rev it up. is this what yours is doing???
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10-03-2011, 12:12 PM #5
- Join Date
- Sep 2005
- Location
- Essexville
- Posts
- 478
Jet Stream Blue- 2009 Lingenfelter ZR1
could be piston slap too
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