piston slap *WTF*
Thread Starter
Teching In
Joined: Jan 2008
Posts: 25
Likes: 0
piston slap *WTF* so my car was makeing a tapping, knocking sound on cold starts and the noise would fade off as the engine would get warm. i checked the oil no problems there and the car has low miles so i just couldnt belave it had a bearing issue. my one buddy is a gm tech and told me the ls1 has a problem with piston slap. is this true. and if it is have any of u had any issues with this before and if i do have piston slap does that mean its time to tear her down and rebuild.... thanks
my car does it do! i hate it! i can really hear it with cutout closed. It compleatly goes away once car is warm..but it annoys me when car is cold. people think its something wrong with my car. i tell them naw its normal. its called piston slap. and they look at me like i just called them an ******** or something..lol.. why do they do this?
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Verdad Gallardo what helps out with alot of people is change to royal purple 5w30 it almost eliminates. i dont have it. but iv ran RP since i had it.
there is a thread on this to just search for it.
but try that and see if that helps
there is a thread on this to just search for it.
but try that and see if that helps
Staging Lane
Joined: Oct 2006
Posts: 83
Likes: 0
From: Iowa
I have a 99' FRC Vette that has had a problem similar to this from the day I bought it. I have been told by numerous people that the LS1 just sounds like that and not to worry about it, but I haven't been able to stop worrying about it since day one.
Mine is a very light ticking noise. It's like a baseball card in the spokes of a bicycle. The intesity of the ticking increases and falls with RPM. It's never got louder, it's never got quieter. I've owned the car over a year now, and it's done it the entire time. It dyno'd at 312rwhp(SAE) with only B&B Route 66 exhaust. I'm about to the point where I'm going to bring it to a local Chevy dealer and see what they think, I just don't know.
How does one come to a final decision of whether or not this is a HUGE problem without tearing down the entire motor to carefully inspect every single part?
Mine is a very light ticking noise. It's like a baseball card in the spokes of a bicycle. The intesity of the ticking increases and falls with RPM. It's never got louder, it's never got quieter. I've owned the car over a year now, and it's done it the entire time. It dyno'd at 312rwhp(SAE) with only B&B Route 66 exhaust. I'm about to the point where I'm going to bring it to a local Chevy dealer and see what they think, I just don't know.
How does one come to a final decision of whether or not this is a HUGE problem without tearing down the entire motor to carefully inspect every single part?
