New LS1 Owners - Newbie Tech - Who's had success with piston slap problem?

I just bought my 2001 WS6 with 7k on it and it's definatly got piston slap. Anyway, i was curious who's had piston slap for a long time and has it caused any problmes?? Also, who's had succes in terms of dealing with GM and the dealerships regarding this issue??
thanks in advance for any help!

Well I also have a good case of the slap!! I have 10,500mi and no obvious problems other than it burns a little oil (most do) And after fighting with Mr.Goodscrew for a few weeks they finally fessed up and said it has some "cold start up noise but it goes away at full temp so we won't fix it" so I fought a little more and they extended my warranty on the motor to 5yr or 60,000mi. Good luck!!

It doesn't hurt anything. I've had it with all three of my F-bodys, my 'Vette, my Yukon, and my Suburban. I don't even notice it anymore. It's just a fact of GM life. Don't worry about it as long as it goes away when the engine heats up.

doesn't really go away when the car heats up......is that bad?

It should. That doesn't sound right if it doesn't.

I have an LS1 but my car is a 3rd gen. I couldnt risk just going with it and hoping it doesnt ruin anything. Would it work to just have my motor bored over and honed and buy some aftermarket pistons... What pistons would you recommend?

My motor is out of a 2000 SS with 20k I was told. It was a warranty take out for piston slap. I tore her down and this thing is emaculate, there is barely any wear if any... I can still see the crosshatch in every cylinder, there apears to be no damage. So I dunno what to do.

It doesn't hurt anything. I've had it with all three of my F-bodys, my 'Vette, my Yukon, and my Suburban. I don't even notice it anymore. It's just a fact of GM life. Don't worry about it as long as it goes away when the engine heats up.

Engine parts bangin' together is never a good thing...having a 6.0HD GMC myself, sounds like a friggin' diesel :mad: . Might be a GM fact of life as of recent, but still not exceptable. What's worse is that THEY know better...

Check out this site I found after our local newspaper (Detroit Free Press) ran an article about this very problem. The Reuter's article is a good one too. Pretty interesting reading and again, VERY frustrating...

http://www.pistonslap.com

I have an LS1 but my car is a 3rd gen. I couldnt risk just going with it and hoping it doesnt ruin anything. Would it work to just have my motor bored over and honed and buy some aftermarket pistons... What pistons would you recommend?

My motor is out of a 2000 SS with 20k I was told. It was a warranty take out for piston slap. I tore her down and this thing is emaculate, there is barely any wear if any... I can still see the crosshatch in every cylinder, there apears to be no damage. So I dunno what to do.


can you measure the bore, both front to back, and side to side, and report the findings?

one "possible" cause for this piston slap, is non round bores, not sure how that happens, but that is a rumor, that would be nice to settle yes, or no.

Ryan.

What exactly is piston slap?

It dosen't bother me anymore either, once you have your car for a while it sounds natural to you. Some of you guys might be hearing valvetrain noise(bad lifter, bent p-rod) this is very easily detectible with the aluminum block/heads, it echos the sound which makes the sound much more decisive and clear, this would be something to get checked out but other than that I really haven't heard of piston slap having any major repurcussions. Good Luck

Wes

What exactly is piston slap?

read the previous thread :)

Engine parts bangin' together is never a good thing...having a 6.0HD GMC myself, sounds like a friggin' diesel :mad: . Might be a GM fact of life as of recent, but still not exceptable. What's worse is that THEY know better...

Check out this site I found after our local newspaper (Detroit Free Press) ran an article about this very problem. The Reuter's article is a good one too. Pretty interesting reading and again, VERY frustrating...

http://www.pistonslap.com

my car doesnt really slap right away when you start it up. rather, it starts quiet, then starts slapping, then stop after driving it around for a while. also, i you let it sit for a few minutes then start it up again it will start slapping untill it sits for a *long* time or until you start driving again. is this normal? i mean, it does go away if you drive it or let it idle for a *long* time but it doesnt start slapping right away and never quite goes away completely.
btw i was using molbil 1 5-30(or 40. whatever they reccomended) and i now use mobil 1 10-40 and it seems to be the same either way.