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#1
04-25-2008, 09:44 PM
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Piston Slap
guys with ls1s... i love my 2001 z28. but after discovering that little noise i heard was piston slap (apparently a problem ls engines are notorious for), i was horrified. i thus began thinking i have to trade it off before it tears up. i'm running 10w30 syntec in it. still hear the noise. is this a major problem? should i trade it for a mustang gt?
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#2
04-25-2008, 10:51 PM
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Re: Piston Slap
Mustangs are girl cars, with the exception of the 67 SHELBY GT500. Can't say anything about the piston slap thing, but if it does eventually put you in the market for another vehicle, just get another camaro/firebird. You probably won't have the same problem again.
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2012 Ford Fusion SE 3.0 V6 -SOLD- 1992 Lexus LS400 4.0L V8 -SOLD-1989 Firebird 2.8l V6 Red and White w/flames. Stock. Daily Driver. 
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#3
04-25-2008, 10:56 PM
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Re: Piston Slap
i've done my homework online about piston slap in ls engines. i just wish i had done it BEFORE i bought the car. it is VERY common (apparenly, google) i have had a 1985 2.8 firebird, and a 1992 305 firebird. i would say i've been pretty loyal. but when i want to empress my buddies with my new car and we hear CLANK CLANK CLANK, i'm not too cool. still, it runs like a mofo.
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#4
04-26-2008, 02:57 AM
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Re: Piston Slap
From what I've heard, you should only hear the piston slap noise duing the first few minutes of warm up. Once the engine is up to normal operating temperatures, you should no longer hear it. If you do still hear it even after driving it around for some time, then I would imagine something must be wrong.
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- Jason 1995 Pontiac Firebird   User Guidelines | VB Codes Explained | AF Merchandise "Each of us, is in the scheme of things, insignificant. But millions of insignificant people, doing a tiny bit, can add up to be a very significant force."
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#5
04-26-2008, 04:42 AM
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Re: Piston Slap
Quote:
     .....that is all. 
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#7
04-26-2008, 11:50 PM
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Re: Piston Slap
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2008 G8 GT ~ 2004 Silverado LT ~ 1998 z-28
Tuned By TJ Wong - Wong's Performance Engineering 
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#8
04-27-2008, 12:56 AM
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Re: Piston Slap
I had (note "had") all the symptoms. The pistonslap.com website is almost like a bow-tie block hater's site. Lawsuits and all that jiminy.... PS.com put out GM's tech bulletin, which goldz28 listed above, and some tips on how to fix it (ironically enough).
One thing that wasn't listed anywhere that seemed to fix mine, was just a simple seafoam. I had my knocking sound worse than ever and it was time to run the ol' seafoam. Stopped, ran a good bit of it through. Hey, no more ticking! I haven't heard it once since I ran the seafoam through. If you haven't tried that yet, I would suggest giving that a shot. Any questions, just IM me or PM me... IM me at drivenbychange on AIM or takenbythedarkness on Y! msgr.
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#9
04-29-2008, 12:18 PM
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Re: Piston Slap
Quote:
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Retired and Loving It!!! 33 years with General Motors Product Service Engineering. A.S.E. Certified. You can fix ignorant but stupid will be a real challenge!
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all the symptoms. The pistonslap.com website is almost like a bow-tie block hater's site. Lawsuits and all that jiminy.... PS.com put out GM's tech bulletin, which goldz28 listed above, and some tips on how to fix it (ironically enough).
