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#1 |
![]() Drives: 2010 Red SS/RS Join Date: Jul 2009
Location: Lake Jackson, TX
Posts: 476
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Tic, tic, tic
My L99 has started ticking when I start the engine. And no, it hasn't exploded. It quiets down after about a minute. It sounds like sticking lifters, but I'm old school so it could be something else on these new fangled engines.
Is this normal? What should I do if anything?
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#2 |
![]() ![]() Drives: Black 2SS Join Date: Nov 2009
Location: az
Posts: 853
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My LS1 did the same, from what I hear its notorious for all LS based engines to do this..My L99 started doing it too around 15k..
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#3 |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 2010 Camaro 2SS/RS Join Date: Mar 2008
Location: S.W. Florida
Posts: 6,294
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Normal
Some describe it as a sewing machine sound. Get some headers and it will be even more pronounced. |
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#4 |
![]() ![]() ![]() ![]() Drives: LS3S/C Join Date: Aug 2008
Location: CALI
Posts: 1,344
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true story I hate that sound but what can you do?
__________________
MODS whipple 2.9L s/c, ADM race scoop, 600 rwhp 550 wrtq, .
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#5 |
![]() Drives: 2010 Camro 2SS Join Date: Apr 2010
Location: Cambridge, MD Lower Eastern Shore
Posts: 100
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Mine has started to do this also, and seams to be worse if the air is on at startup.
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#6 |
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Brand new engines make this noise. Very subtle and you have to have your head under the hood, but it's there. At least mine and a few other new C5's make this noise that I've heard. It's like a little textile factory under there with 426hp
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#7 |
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ou mai gad
Drives: SW 2SS x2 Join Date: Feb 2010
Location: MX
Posts: 643
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the famous LS1 powered sweing machines!
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#8 |
![]() Drives: 2010 Camro 2SS Join Date: Apr 2010
Location: Cambridge, MD Lower Eastern Shore
Posts: 100
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At the same time I have a 99 Chevy truck with a 6.0 in it. This truck has 189000 miles on it and is still going strong. The same tic has been there from day one, so not that worried about this.
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#9 |
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no tic in my L99
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Jannetty Racing JRE Street Package
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#10 |
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Drives: 2000 Camaro SS Join Date: Feb 2010
Location: Louisville, Ky.
Posts: 25,165
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#11 |
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ou mai gad
Drives: SW 2SS x2 Join Date: Feb 2010
Location: MX
Posts: 643
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you forgot the LS3 powered granny chair!
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#12 | |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 2013 A6 GT 5.0 Join Date: Nov 2009
Location: Edmond, OK
Posts: 2,909
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Quote:
It really bugges me through a drive thru after the headers. What are you going to do? Its the nature of the beast.
__________________
BLK/BLK 1SS/RS Ordered 11-01-2009 Took delivery 12-22-2009. Heads/cam/converter/bolt ons. SOLD Feb 2015 to fund 6th gen LT1 SS with 8L90E.
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#13 |
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I put the FU back in FUN
Drives: 1969 SS 396 , 2010 Camaro SS Join Date: Jun 2009
Location: Between Weatherford and Azle TX hway730
Posts: 2,129
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What you are probably hearing is the l99 lifters ticking. Most people will try and scare you by saying it may be piston slapping it's not. My car had a l99 I recently converted it over to a ls3 so bye bye went the Afm lifters. My car did it from day one as a l99 so I wouldn't be alarmed. If it bothers you to much let the dealership look at it otherwise I wouldn't worry about it to much as many have said ls engine make these noises however not like L99's.
If you wanna know more search here on the site for L99 lifter tick or l99 tick |
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#14 |
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Account Suspended
Drives: 2005 Pontiac GTO Join Date: Jun 2009
Location: Pittsburgh, PA
Posts: 591
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It's an LSx... ignore it
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