piston slap?
piston slap? im looking at a 99 ss but he says it has piston slap when its cold.is this normal for a ls1? i know its norm for a lt1 but ive never heard anything on ls1.thanks, joe
Ugh, my car does this when it's cold. It sounds nasty, but I don't know how to get rid of it... by the way, it's an LS1. From the reading I've done on it, it's a very common issue among these cars.
common "problem" or whatever you want to call it... Wouldn't worry about it unless it's like really loud or something. My car had only 39k when I bought it and it did/does this.
gotta love the POS 98's.... i was reading that when GM revised the ls1 in 99 they went through a series of cost cuts, causing piston slap. I have never had it, however i have a buddy with a 2000 camaro and his has it.
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On The Tree
Joined: Sep 2008
Posts: 119
Likes: 0
my 01 T/A makes that loud noise when its cold. it sounds somewhat like a diesel. but when it warms up a little bit, the noise goes away. glad someone did a post about it cuz i've been gettin worried about that noise
On The Tree
Joined: Aug 2008
Posts: 107
Likes: 0
From: Northern Virginia
I had it. Yes "had". I seafoamed my car today and it is magically gone. Don't know why or how, but it is.
But I wouldn't worry about it as long as it goes away after being warmed up. Very, very common.
But I wouldn't worry about it as long as it goes away after being warmed up. Very, very common.
Lucky! I seafoamed mine and it didn't do anything for the "slap." Course, that was when it was warm outside.
My '02 also clatters when cold, though the noise
is a lot less noticeable now that it has a cam and
long tubes / ORY. Problem solved.
There were some motors in earlier production that
were overbored on cylinder #1, and the later years
went to tighter bore tolerances and coated pistons
to help it, but if your #1 plug doesn't foul out first
then you have no actual problem, other than
sounding like the UPS truck for the first 5 minutes.
is a lot less noticeable now that it has a cam and
long tubes / ORY. Problem solved.
There were some motors in earlier production that
were overbored on cylinder #1, and the later years
went to tighter bore tolerances and coated pistons
to help it, but if your #1 plug doesn't foul out first
then you have no actual problem, other than
sounding like the UPS truck for the first 5 minutes.
Thanks now i feel better, what do yall think about thunders 227/228 cam and a 100 shot with 132000 and the mods in my sig?
Last edited by 30th6; Mar 12, 2009 at 09:03 PM.
