L99 idle - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

butch2000 · 09-14-2015, 08:26 AM

Why do the L99 cars sound so funny at idle ? kinda ticky clacky sounding ?

qcman · 09-14-2015, 08:55 AM

Not sure it could be bad lifters as the early models like yours had some issues with them I know. But I also think these engines tend to tick a little by nature...

Low Saturn · 09-14-2015, 11:34 AM

My 2011 L99 used to tick at idle and be even louder at start up. Took it in for the lifter tick TSB last year and its been quiet since.

butch2000 · 09-14-2015, 04:59 PM

I only have 940 miles on mine , you wouldn't think a lifter would be bad already ? did they replace anything when you took it in for the TSB

NeedsWorkSS · 09-14-2015, 08:35 PM

Im curious about this too, I bought the car 2 weeks ago with 38k on the odo. Its a 2010, my wife started it up today to go to work and i noticed a loud tick coming from it and i was standing a good 20 feet from the car. Made me question if i should take it to the dealer.

Dmpsix · 09-14-2015, 08:53 PM

It's these stupid lifters... mines a 2011, I doubt the service bulletin applies to me anymore since I no longer have warranty because I'm modded and tuned.

I've been looking into LS3 conversion for a cam later in the future, just for peace of mind.

myold88 · 09-14-2015, 09:43 PM

My early build 2010 L99 SS engine has never made a sound after 6 years.
I've done 9 oil changes since new and think that may be the reason.
I suggest changing the oil at least once a year especially if you have
extremely low mileage.

SSeniorMoment · 09-14-2015, 10:04 PM

Mine ticked, I think it's just the nature of the beast. A number of 2010s are being modded.

RagingHawk · 09-15-2015, 07:33 AM

It's normal, sometimes happens at start up.

Jrichards73 · 09-15-2015, 10:57 PM

I was adding Lucas stabilizer and it would make it quieter, then switched to Pennzoil ultra platinum without and it quieted mine, your results may vary.

PalmerGA · 09-16-2015, 07:29 AM

Quote:

Originally Posted by Jrichards73

I was adding Lucas stabilizer and it make it quieter, then switched to Pennzoil ultra platinum without and it quieted mine, your results may vary.

I have been using Pennzoil Synthetic Blend 5W-30 from the start (22K miles now) and have never had any "ticking" issues. I think some cars tick and some don't. If it's a really loud tick, have it checked at your Chevy dealer.

Denis · 09-16-2015, 07:47 AM

I run Mobile 1 and im at 102,000 miles and I don't notice an excessively loud idle.

myold88 · 09-16-2015, 09:17 AM

Quote:

Originally Posted by Denis

I run Mobile 1 and im at 102,000 miles and I don't notice an excessively loud idle.

102,000 miles ! Congrats on getting your moneys worth from your Camaro.

rontammy0 · 09-16-2015, 09:58 AM

These motors are not quite....your injectors are very noisy as well. That's what most people are hearing except for those that have or had lifter problems.

09-14-2015, 08:26 AM	#1
butch2000 Drives: 2010 RS , SS , supercharged , Join Date: Aug 2015 Location: Strathroy Posts: 173 View My Garage	L99 idle Why do the L99 cars sound so funny at idle ? kinda ticky clacky sounding ?

09-14-2015, 11:34 AM	#3
Low Saturn Drives: 2011 Camaro 2SS/RS Join Date: Oct 2013 Location: San Jose, California Posts: 1,371	My 2011 L99 used to tick at idle and be even louder at start up. Took it in for the lifter tick TSB last year and its been quiet since. __________________

09-14-2015, 09:43 PM	#7
myold88 Drives: SUMMIT WHITE 2SS/RS CAMARO Join Date: Feb 2008 Location: 2018: Lakewood Ranch, Fl. Posts: 8,164 View My Garage	My early build 2010 L99 SS engine has never made a sound after 6 years. I've done 9 oil changes since new and think that may be the reason. I suggest changing the oil at least once a year especially if you have extremely low mileage. __________________

09-15-2015, 10:57 PM	#10
Jrichards73 Drives: 2011 2SS/RS Victory Red Join Date: Aug 2011 Location: Virginia Posts: 921	I was adding Lucas stabilizer and it would make it quieter, then switched to Pennzoil ultra platinum without and it quieted mine, your results may vary. __________________ Updates: BTR Stage 2 VVT Cam Kit w/Smith Brothers Trunnions, Fluidampr, RX catch can, B&M Trans pan mod, Kooks Black Headers, Borla S-tunes, Eibach Multi-Pro-R2 coilovers and Swaybars, BMR Full Bushing kit with Toe and Trailing arms, RB Rotors w/EBC Pads, GForce 1400 Axles (now on order). AVH-X5800BHS in Scosche GM5201AB. Last edited by Jrichards73; 09-17-2015 at 09:11 PM.

09-16-2015, 07:47 AM	#12
Denis Drives: 2010 SS Join Date: May 2012 Location: Yorktown Heights, NY Posts: 7,695 View My Garage	I run Mobile 1 and im at 102,000 miles and I don't notice an excessively loud idle. __________________

09-14-2015, 08:55 AM	#2
qcman Drives: 2013 Camaro 2SS RDP Tuned L99 Join Date: Apr 2013 Location: Ottawa, Canada eh? Posts: 1,889	Not sure it could be bad lifters as the early models like yours had some issues with them I know. But I also think these engines tend to tick a little by nature...

09-14-2015, 04:59 PM	#4
butch2000 Drives: 2010 RS , SS , supercharged , Join Date: Aug 2015 Location: Strathroy Posts: 173 View My Garage	I only have 940 miles on mine , you wouldn't think a lifter would be bad already ? did they replace anything when you took it in for the TSB

09-14-2015, 08:35 PM	#5
NeedsWorkSS Drives: 2010 6.2L SS Join Date: Sep 2015 Location: Pittsburgh PA Posts: 68	Im curious about this too, I bought the car 2 weeks ago with 38k on the odo. Its a 2010, my wife started it up today to go to work and i noticed a loud tick coming from it and i was standing a good 20 feet from the car. Made me question if i should take it to the dealer.

09-14-2015, 08:53 PM	#6
Dmpsix Drives: Black L99 2SS/RS Join Date: Mar 2014 Location: San Antonio, TX Posts: 1,862	It's these stupid lifters... mines a 2011, I doubt the service bulletin applies to me anymore since I no longer have warranty because I'm modded and tuned. I've been looking into LS3 conversion for a cam later in the future, just for peace of mind.

09-14-2015, 10:04 PM	#8
SSeniorMoment Drives: 2010 2SS/RS LS3 A6 IOM Join Date: May 2013 Location: Arizona Posts: 1,192	Mine ticked, I think it's just the nature of the beast. A number of 2010s are being modded.

09-15-2015, 07:33 AM	#9
RagingHawk Drives: Fuel efficient compact sedan :) Join Date: Jun 2015 Location: Michigan Posts: 707	It's normal, sometimes happens at start up.

09-16-2015, 09:58 AM	#14
rontammy0 Account Suspended Drives: 2011 2SS/ RS INFERNO ORANGE L99 Join Date: Dec 2012 Location: Alliston Ontario Canada Posts: 9,057 View My Garage	These motors are not quite....your injectors are very noisy as well. That's what most people are hearing except for those that have or had lifter problems.