Did GM fix the piston slap and ring issues by '02
my 1998 car has no slap. 60x miles,
a friends 2002 Z28, and another 2002 Z28 both have nasty piston slap, so bad that one sold the car cause of it, while it was still under warranty.
Ryan
a friends 2002 Z28, and another 2002 Z28 both have nasty piston slap, so bad that one sold the car cause of it, while it was still under warranty.
Ryan
Mine has 60k miles, and I just had my head gaskets replaced...... NOW I have piston slap in the morning. The dealer has been telling me it's normal, and I've been pretty pissed about it. Now I'm glad I bit my tounge and didn't call anybody a lier. :LOL: 
TECH Enthusiast
Joined: Apr 2003
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From: silver Spring MD
Originally Posted by meangreen94z
Ive never heard of an LT1 having pistonslap 
, although there may be cases
, although there may be casesBill
Launching!
Joined: May 2003
Posts: 257
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From: Northern Virginia
When I first got my TA and I heard it ticking I was as usual paranoid as all hell. Then I listened to my dads 96 Tahoe and heard pretty much the same thing. Enough to say that it made me feel a little better.
What I've always wondered is how a completely rebuilt, aftermarket bottom end LSx sounds. Ticking at all? I'm planning on finding out myself next June
What I've always wondered is how a completely rebuilt, aftermarket bottom end LSx sounds. Ticking at all? I'm planning on finding out myself next June
TECH Senior Member
Joined: Nov 2001
Posts: 7,234
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From: Mississauga, Ontario
Originally Posted by meangreen94z
Ive never heard of an LT1 having pistonslap , although there may be cases
, although there may be casesLS1 Tech Stories
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TECH Enthusiast
Joined: Apr 2003
Posts: 561
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From: silver Spring MD
Originally Posted by Patman
When I first joined the f-body.org mailing list in 1996 I remember a lot of LT1 guys complaining of piston slap but in those cases the sound only happened above 2500rpm on a cold engine. My 95 Trans Am at the time did it, but I rarely went above 2500 on a cold engine so it didn't bother me.
Bill
I get it for a few seconds in my 00 but thank good it uses no oil and runs excellent.I had a 00 k2500 w/6.0 and in 10k miles it rattled hard cold much worse then the Z and my buds 01 k2500 w/6.0 rattles cold and has all kinds of valvetrain noise so the iron block theory is debunked.
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Joined: Nov 2001
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From: LaConner WA
I've had cold knock in my car since it had 2500 miles on it. I now have 35,000 on it and it's the same. It's all because of the short piston skirt design that allows the piston to rock back and forth when the engine is cold. It's not a problem at all and doesn't bother me in the least.
