View Poll Results: How much racket does your motor make?..
None...almost silent
22
14.01%
Moderate...a little bit of comotion in there.
104
66.24%
Lots...slaps and rattles itself all day.
31
19.75%
Voters: 157. You may not vote on this poll
How much noise?...
On The Tree
Joined: Apr 2007
Posts: 152
Likes: 0
From: Clemson, SC
My 2000 SS had the worst piston slap I had ever heard. And it only got worse. Especially when it got winter time. O my God, the sound level went up exponentially then. Now with the LS6, it makes some funky *** noise, but it doesn't sound like piston slap. It only makes it until the oil temp gets to exactly 120* then it goes away. Wierdest thing I've ever seen (heard, actually). I was just messing around under the hood while I was letting it warm up one day and squeezed a hose (can't remember which one now but I THINK it was either a vaccuum or PCV hose or somehting like that. And it went away while I squeezed it. Never pursued it any farther, but it just scares me to think what is going on inside there 
Originally Posted by LS1Silverado05
Crazy yea. I mean...like I said...I ran a 13,000 mile Z06 and it made a racket...I guess its just hard to get away from. LTs and ORY here I come. 
Mine wines a bit when i'm driving under 10 mph, especially when i'm steering hard, but i think that's just the power steering. As far the engine itself, sound pretty normal w/ a knock here and there... nothin' too bad.
TECH Enthusiast
Joined: Aug 2006
Posts: 542
Likes: 0
From: Memphis, TN
Originally Posted by Black C5 Z06
My 2000 SS had the worst piston slap I had ever heard. And it only got worse. Especially when it got winter time. O my God, the sound level went up exponentially then. Now with the LS6, it makes some funky *** noise, but it doesn't sound like piston slap. It only makes it until the oil temp gets to exactly 120* then it goes away. Wierdest thing I've ever seen (heard, actually). I was just messing around under the hood while I was letting it warm up one day and squeezed a hose (can't remember which one now but I THINK it was either a vaccuum or PCV hose or somehting like that. And it went away while I squeezed it. Never pursued it any farther, but it just scares me to think what is going on inside there
You probably squeezed the AIR injection inlet hose and made it stop blowing air. The air system makes some weird *** noises until it quits as the engine warms. That'd be my guess.
ok ive been looking for this rattle since i got the car i took off the y and my cats are gutted there is no metal or chucnks left over in it so theres a rattle when i let off the gas from 1k to idle it rattle i got it on the lift the rattle comes out the cats than tooke them off and the rattle comes out the stock manifolds drove me crazy and still does lol
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Banned
Joined: Apr 2006
Posts: 1,875
Likes: 1
From: Naperville, IL
Originally Posted by mvvette97
Mine has some now that i put a cam in it.
TECH Fanatic
Joined: Jul 2006
Posts: 1,843
Likes: 0
From: reykjavík, iceland
its time to update my answer,
when i had the tock motor.. there came no sounds from the engine bay.. just some vbelt whine..
now after i installed the H/C/I alot of sound comes from there.. some valvetrane noise.. and i feel like there is a piston slap also... its seems to be getting better with the miles i drive it,
when i had the tock motor.. there came no sounds from the engine bay.. just some vbelt whine..
now after i installed the H/C/I alot of sound comes from there.. some valvetrane noise.. and i feel like there is a piston slap also... its seems to be getting better with the miles i drive it,
i just turn the radio up a little bit and ignore it.
I have a T-rex cam and the first time i started it i freaked out thinkin something was wrong... you want alot of valve noise start it with open headers after a cam swap.. you can hear everything through the not exsisting pipes... lol
Mine is loud, sounds like air gushing .. oh ya it is air, getting sucked into the airbox. You can hear my car breathing, not the rockers so much but air being sucked into an opening. You dont want loose clothing in front of my airbox.
These sorts of noises freaked me out too for awhile. When I was stock it was pretty quiet, but after I got a tune it is definitely louder. It seems to be running just fine, so no complaints I guess.
no ticking, no slapping, no whistling, no banging clatering or anything else...how you ask?
...(drum roll)...
its stock
anyway...i used to have some noise in the old 98, my solution: DYNAMAT THAT BITCH
...(drum roll)...
its stock
anyway...i used to have some noise in the old 98, my solution: DYNAMAT THAT BITCH
i dont have any knocking or piston slap but i would imagine if something was wrong it woulda blown by now... i have a cam so that makes it sound alot louder but nothing i can't stand. if you have the windows up and i'm at about 2k it sounds like a million sewing machines but thats normal... for the amount of power these engines produce i dont care what noises it makes if its normal that is