Weird Ticking for about 5 seconds after startup..... - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

BossHogg · 02-04-2012, 09:49 AM

Not sure what this ticking noise is but happens surely in the morning as soon as i start the car... it also seems to happen after the car has sat for a few hours..... Thought id check here first before bringing it to the dealership here.....

ericgoul · 02-04-2012, 09:58 AM

L99 or LS3 ?

BossHogg · 02-04-2012, 10:06 AM

L99

ericgoul · 02-04-2012, 10:20 AM

Check if it come from your lifter. It already happen to my car. I have 16 new lifters now.Ï found this bulletin before i went to my dealer " Default #10-06-01-007B: Active Fuel Management (AFM) Engine, Valve Lifter Tick Noise at Start
#10-06-01-007B: Active Fuel Management (AFM) Engine, Valve Lifter Tick Noise at Start Up When Engine Has Been Off for 2 Hours or More (Evaluate Noise and/or Replace Valve Lifters) - (Nov 17, 2010)
Subject:
Active Fuel Management (AFM) Engine, Valve Lifter Tick Noise at Start Up When Engine Has Been Off for 2 Hours or More (Evaluate Noise and/or Replace Valve Lifters)

Models:
2007 Buick Rainier
2009 Buick LaCrosse Super, Allure Super (Canada Only)
2007 Cadillac Escalade
Built Prior to April 1, 2006 with 6.2L Engine RPO L92 (These engines were built with AFM Hardware but the AFM system was disabled)
2010-2011 Cadillac Escalade
2007 Chevrolet Monte Carlo
2007-2009 Chevrolet Impala
2007-2011 Chevrolet Avalanche, Silverado, Suburban, Tahoe, TrailBlazer
2010-2011 Chevrolet Camaro SS
2007-2011 GMC Envoy, Sierra, Yukon
2007-2008 Pontiac Grand Prix
2008-2009 Pontiac G8
2007-2009 Saab 9-7X
Equipped with AFM (Active Fuel Management) and V8 Engine RPO L76, L94, L99, LC9, LFA, LH6, LMG, LS4, LY5 or LZ1
Attention:
This bulletin only applies to the AFM V8 engines listed above. It DOES NOT apply to Non-AFM Engines. If you are dealing with a Non-AFM engine that is experiencing a similar noise, please refer to Engine Mechanical > Diagnostic Information and Procedures > Symptoms in SI.
This bulletin is being revised to add the 2011 model year. Please discard Corporate Bulletin Number 10-06-01-007A (Section 06 - Engine/Propulsion System).
Condition
Some customers may comment on an engine valve lifter tick noise that occurs after the engine has been shut off for at least two hours. The tick noise may last from two seconds to ten minutes.
Cause
This condition may be caused by any of the following:
Aerated oil in the valve lifter body, resulting in the valve lifter being unable to purge the air quickly.
A low engine oil level or incorrect oil viscosity.
Dirty or contaminated oil.
A low internal valve lifter oil reservoir level.
Debris in the valve lifter.
A high valve lifter leak down rate.
Correction
If the SI diagnostics do not isolate the cause of this valve lifter tick noise and normal oil pressure is noted during the concern, perform the following steps:
Inspect the engine oil condition and level. Refer to Owner Manual > Service and Appearance Care > Checking Things Under the Hood > Description and Operation > Engine Oil in SI. ?If the engine oil is more than one quart low, an incorrect oil viscosity is being used or if poor quality/contamination is observed, change the oil and filter.
Note: Allow at least a two hour soak time between engine OFF and start up when evaluating the tick noise.
Start the engine and evaluate the valve lifter tick noise. ?If the valve lifter tick noise is still present, replace all 16 valve lifters. Refer to Valve Lifter Replacement in SI.
Parts Information
Note: A V8 AFM engine requires 8 AFM lifters and 8 non-AFM lifters for a total of 16 lifters.
Part Number Description Qty
12576400 Non AFM Hydraulic Valve Lifter 8
12632143 AFM Hydraulic Valve Lifter 8

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.

WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION

© 2010 General Motors. All rights reserved."

BossHogg · 02-04-2012, 10:37 AM

Hey bout how long does this process take ? Man the dealership here is so slow but i guess if i gotta go then i gotta go.....

ericgoul · 02-04-2012, 10:53 AM

It take : 1 day for all test, it take 2 weeks to receive the lifters, 2 to 3 days to replace the lifters. ( 2 days if your dealership don't forget to order the gaskets !!). I lost my car during 4 days total with the test included. I don't know if it's an illusion but my car run better.

BossHogg · 02-04-2012, 11:00 AM

great info thanks buddy..... im calling first thing monday morning.....

ericgoul · 02-04-2012, 11:03 AM

BossHogg · 02-04-2012, 11:05 AM

before i do this...... there is nothing i can try before i go there..... maybe a small chance , anything.... fingers crossed...

*The Stig* · 02-04-2012, 11:11 AM

If it's the lifters, then only way to fix it is to replace them.

BossHogg · 02-04-2012, 11:28 AM

Cool kinda figured that i was just hoping and praying for another fix... u know how that is....

geaux_tigerss · 02-04-2012, 12:20 PM

An exhaust leak can sound like this as well. Check around your exhaust gaskets for any indication.

BossHogg · 02-04-2012, 12:39 PM

Imma have to take a look at that also..... i really gotta get this shit fixed........Thanks fellas

L99CAMA2011 · 02-05-2012, 07:33 AM

Quote:

Originally Posted by BossHogg

Imma have to take a look at that also..... i really gotta get this shit fixed........Thanks fellas

My L99 sounded like it had this issue and since I started using Amsoil Extended Life the startup tick went away up till now and that was for the last 29000 miles. But I think the lifters still may need replacing. The only real fix is to have them replaced.

BossHogg · 02-05-2012, 04:15 PM

What exactly is Amisol Extended Life?

Andy@AMSOIL · 02-05-2012, 06:35 PM

Quote:

Originally Posted by L99CAMA2011

My L99 sounded like it had this issue and since I started using Amsoil Extended Life the startup tick went away up till now and that was for the last 29000 miles. But I think the lifters still may need replacing. The only real fix is to have them replaced.

10w30 or 5w30, XL, OE or Premium

We also recommend zrod 10w30, designed specially for big engines

BossHogg · 02-05-2012, 07:12 PM

Oh ok I gotcha.....thanks

OBSSEST · 02-06-2012, 01:32 PM

I think there is some level of valve tick that is acceptable after a cold startup and can be considered "normal". Mine will do this intermittently but it lasts for only 2-3 seconds.

I think some others have had the tick continue for minutes or even longer. Personally, I don't trust my dealership to crack open the engine and do this repair properly until something really breaks. I've read that some people still have a few second ticking noise AFTER the valve replacement.

So, I'd rather live with it and do nothing for now. I might try Amsoil for my next oil change just to see if it makes a difference.

justa25thTA · 02-06-2012, 01:40 PM

and what would happen if it didn't get fixed? my 2004 GMC Sierra with the 5.3l just started making what I believe to be the ticking lifter noise.

whitedemon · 02-06-2012, 05:48 PM

My l99 did the same thing. Bring it to the dealer, this is not uncommon so the dealer should be fairly quick. I am a GM tech and my dealership stocked all the parts, I did my total job in a day. Its not a huge job and it fixed mine and the other dozens we do too. Warranty pays for it so no reason not to get it done. good luck

Sent from my SAMSUNG-SGH-I777 using Tapatalk

bumblebeecamaro · 02-07-2012, 11:31 PM

my engine has been fine for 17K miles. then, about two days ago, I heard a ticking noise as soon as I started the engine. it scared the crap out of me so I shut it off, restarted it and it was fine.

it hasn't happened again and I'm hoping it was a fluke. (wishful thinking I'm sure).

I'd like to think GM would replace the lifters in my L99 car. but I'm thinking they won't due to the S/Cer on my engine.

what do you guys think?

Doomsday2005 · 02-29-2012, 07:33 PM

I have a 2011 L99 SS that has made a ticking noise since day one and it does not stop after you start it, it does it as long as it is runing. It is very noticeable so i took it back to the dealer about 2 days after I bought it and they said it was the high pressure fuel injectors. I waited another 3 months or so and took it to another dealership for a second opinion same result, they said it was the high pressure fuel injectors. My car has 1786 miles on it and it's not my daily driver, I have had it since Oct of 2011. This thread kind of has me worried that it's not the injectors. Any advice?

E.T. · 02-29-2012, 07:50 PM

So just wondering...is this lifter issue due to AFM? Is it better if the lifters are working all the time, like with AFM turned off, or would that make matters worse? How many of you who've had AFM tuned out have had this lifter problem?

510SS · 03-01-2012, 12:01 AM

Mine only does the ticking a couple seconds after cold start up. Never thought anything of it.

The SwiftChancelor · 03-01-2012, 06:55 AM

Quote:

Originally Posted by 510SS

Mine only does the ticking a couple seconds after cold start up. Never thought anything of it.

Mine does the same thing. I heard of a few reasons why it could do this, most recently I heard it was the fuel pump. Not sure but like most have stated its just a few seconds on certain mornings.

02-04-2012, 09:58 AM	#2
ericgoul Drives: 2010 CAMARO 2SS/RS IBM L99 Join Date: Jan 2011 Location: Quebec, Canada Posts: 32 View My Garage	L99 or LS3 ? __________________ CAI intake, Flowmaster AT axleback, 1 7/8 ARH with Cats, JRE Tune.

02-04-2012, 10:06 AM	#3
BossHogg Mexican SS Drives: Black 2SS/RS Join Date: Dec 2011 Location: Lake Charles, La Posts: 246 View My Garage	L99 __________________ *Black 2010 2SS/RS...* HP Tune.. Volant Cold Air Intake.. Smoked Tail Lights-Reverse Lights -Front/ Rear Corner Lenses Painted Bow Ties front & rear Pacesetter Long Tube Headers Magnaflow Competition Cat Back Exhaust.... Eibach Pro Lowering Kit Painted Heritage Grille 1969 Camaro Emblems *Phoenix Gold I-Amp Sound System* 22 inch Replica Wheels: [I]VMAX Ported Throttle Body [I/]

02-04-2012, 10:20 AM	#4
ericgoul Drives: 2010 CAMARO 2SS/RS IBM L99 Join Date: Jan 2011 Location: Quebec, Canada Posts: 32 View My Garage	Check if it come from your lifter. It already happen to my car. I have 16 new lifters now.Ï found this bulletin before i went to my dealer " Default #10-06-01-007B: Active Fuel Management (AFM) Engine, Valve Lifter Tick Noise at Start #10-06-01-007B: Active Fuel Management (AFM) Engine, Valve Lifter Tick Noise at Start Up When Engine Has Been Off for 2 Hours or More (Evaluate Noise and/or Replace Valve Lifters) - (Nov 17, 2010) Subject: Active Fuel Management (AFM) Engine, Valve Lifter Tick Noise at Start Up When Engine Has Been Off for 2 Hours or More (Evaluate Noise and/or Replace Valve Lifters) Models: 2007 Buick Rainier 2009 Buick LaCrosse Super, Allure Super (Canada Only) 2007 Cadillac Escalade Built Prior to April 1, 2006 with 6.2L Engine RPO L92 (These engines were built with AFM Hardware but the AFM system was disabled) 2010-2011 Cadillac Escalade 2007 Chevrolet Monte Carlo 2007-2009 Chevrolet Impala 2007-2011 Chevrolet Avalanche, Silverado, Suburban, Tahoe, TrailBlazer 2010-2011 Chevrolet Camaro SS 2007-2011 GMC Envoy, Sierra, Yukon 2007-2008 Pontiac Grand Prix 2008-2009 Pontiac G8 2007-2009 Saab 9-7X Equipped with AFM (Active Fuel Management) and V8 Engine RPO L76, L94, L99, LC9, LFA, LH6, LMG, LS4, LY5 or LZ1 Attention: This bulletin only applies to the AFM V8 engines listed above. It DOES NOT apply to Non-AFM Engines. If you are dealing with a Non-AFM engine that is experiencing a similar noise, please refer to Engine Mechanical > Diagnostic Information and Procedures > Symptoms in SI. This bulletin is being revised to add the 2011 model year. Please discard Corporate Bulletin Number 10-06-01-007A (Section 06 - Engine/Propulsion System). Condition Some customers may comment on an engine valve lifter tick noise that occurs after the engine has been shut off for at least two hours. The tick noise may last from two seconds to ten minutes. Cause This condition may be caused by any of the following: Aerated oil in the valve lifter body, resulting in the valve lifter being unable to purge the air quickly. A low engine oil level or incorrect oil viscosity. Dirty or contaminated oil. A low internal valve lifter oil reservoir level. Debris in the valve lifter. A high valve lifter leak down rate. Correction If the SI diagnostics do not isolate the cause of this valve lifter tick noise and normal oil pressure is noted during the concern, perform the following steps: Inspect the engine oil condition and level. Refer to Owner Manual > Service and Appearance Care > Checking Things Under the Hood > Description and Operation > Engine Oil in SI. ?If the engine oil is more than one quart low, an incorrect oil viscosity is being used or if poor quality/contamination is observed, change the oil and filter. Note: Allow at least a two hour soak time between engine OFF and start up when evaluating the tick noise. Start the engine and evaluate the valve lifter tick noise. ?If the valve lifter tick noise is still present, replace all 16 valve lifters. Refer to Valve Lifter Replacement in SI. Parts Information Note: A V8 AFM engine requires 8 AFM lifters and 8 non-AFM lifters for a total of 16 lifters. Part Number Description Qty 12576400 Non AFM Hydraulic Valve Lifter 8 12632143 AFM Hydraulic Valve Lifter 8 GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION © 2010 General Motors. All rights reserved." __________________ CAI intake, Flowmaster AT axleback, 1 7/8 ARH with Cats, JRE Tune.

02-04-2012, 10:37 AM	#5
BossHogg Mexican SS Drives: Black 2SS/RS Join Date: Dec 2011 Location: Lake Charles, La Posts: 246 View My Garage	Hey bout how long does this process take ? Man the dealership here is so slow but i guess if i gotta go then i gotta go..... __________________ *Black 2010 2SS/RS...* HP Tune.. Volant Cold Air Intake.. Smoked Tail Lights-Reverse Lights -Front/ Rear Corner Lenses Painted Bow Ties front & rear Pacesetter Long Tube Headers Magnaflow Competition Cat Back Exhaust.... Eibach Pro Lowering Kit Painted Heritage Grille 1969 Camaro Emblems *Phoenix Gold I-Amp Sound System* 22 inch Replica Wheels: [I]VMAX Ported Throttle Body [I/]

02-04-2012, 10:53 AM	#6
ericgoul Drives: 2010 CAMARO 2SS/RS IBM L99 Join Date: Jan 2011 Location: Quebec, Canada Posts: 32 View My Garage	It take : 1 day for all test, it take 2 weeks to receive the lifters, 2 to 3 days to replace the lifters. ( 2 days if your dealership don't forget to order the gaskets !!). I lost my car during 4 days total with the test included. I don't know if it's an illusion but my car run better. __________________ CAI intake, Flowmaster AT axleback, 1 7/8 ARH with Cats, JRE Tune.

02-04-2012, 09:49 AM	#1
BossHogg Mexican SS Drives: Black 2SS/RS Join Date: Dec 2011 Location: Lake Charles, La Posts: 246 View My Garage	Weird Ticking for about 5 seconds after startup..... Not sure what this ticking noise is but happens surely in the morning as soon as i start the car... it also seems to happen after the car has sat for a few hours..... Thought id check here first before bringing it to the dealership here..... __________________ *Black 2010 2SS/RS...* HP Tune.. Volant Cold Air Intake.. Smoked Tail Lights-Reverse Lights -Front/ Rear Corner Lenses Painted Bow Ties front & rear Pacesetter Long Tube Headers Magnaflow Competition Cat Back Exhaust.... Eibach Pro Lowering Kit Painted Heritage Grille 1969 Camaro Emblems *Phoenix Gold I-Amp Sound System* 22 inch Replica Wheels: [I]VMAX Ported Throttle Body [I/]

02-04-2012, 11:00 AM	#7
BossHogg Mexican SS Drives: Black 2SS/RS Join Date: Dec 2011 Location: Lake Charles, La Posts: 246 View My Garage	great info thanks buddy..... im calling first thing monday morning..... __________________ *Black 2010 2SS/RS...* HP Tune.. Volant Cold Air Intake.. Smoked Tail Lights-Reverse Lights -Front/ Rear Corner Lenses Painted Bow Ties front & rear Pacesetter Long Tube Headers Magnaflow Competition Cat Back Exhaust.... Eibach Pro Lowering Kit Painted Heritage Grille 1969 Camaro Emblems *Phoenix Gold I-Amp Sound System* 22 inch Replica Wheels: [I]VMAX Ported Throttle Body [I/]

02-04-2012, 11:03 AM	#8
ericgoul Drives: 2010 CAMARO 2SS/RS IBM L99 Join Date: Jan 2011 Location: Quebec, Canada Posts: 32 View My Garage	__________________ CAI intake, Flowmaster AT axleback, 1 7/8 ARH with Cats, JRE Tune.

02-04-2012, 11:05 AM	#9
BossHogg Mexican SS Drives: Black 2SS/RS Join Date: Dec 2011 Location: Lake Charles, La Posts: 246 View My Garage	before i do this...... there is nothing i can try before i go there..... maybe a small chance , anything.... fingers crossed... __________________ *Black 2010 2SS/RS...* HP Tune.. Volant Cold Air Intake.. Smoked Tail Lights-Reverse Lights -Front/ Rear Corner Lenses Painted Bow Ties front & rear Pacesetter Long Tube Headers Magnaflow Competition Cat Back Exhaust.... Eibach Pro Lowering Kit Painted Heritage Grille 1969 Camaro Emblems *Phoenix Gold I-Amp Sound System* 22 inch Replica Wheels: [I]VMAX Ported Throttle Body [I/]

02-04-2012, 11:11 AM	#10
The Stig I used to be Stieger.... Drives: a PBM camaro Join Date: Aug 2009 Location: Northern VA Posts: 25,514 View My Garage	If it's the lifters, then only way to fix it is to replace them. __________________ thanks for the sig Russ

02-04-2012, 11:28 AM	#11
BossHogg Mexican SS Drives: Black 2SS/RS Join Date: Dec 2011 Location: Lake Charles, La Posts: 246 View My Garage	Cool kinda figured that i was just hoping and praying for another fix... u know how that is.... __________________ *Black 2010 2SS/RS...* HP Tune.. Volant Cold Air Intake.. Smoked Tail Lights-Reverse Lights -Front/ Rear Corner Lenses Painted Bow Ties front & rear Pacesetter Long Tube Headers Magnaflow Competition Cat Back Exhaust.... Eibach Pro Lowering Kit Painted Heritage Grille 1969 Camaro Emblems *Phoenix Gold I-Amp Sound System* 22 inch Replica Wheels: [I]VMAX Ported Throttle Body [I/]

02-04-2012, 12:20 PM	#12
geaux_tigerss Drives: 2011 2SS RS M6 CGM Join Date: Nov 2011 Location: Pearland, TX Posts: 530 View My Garage	An exhaust leak can sound like this as well. Check around your exhaust gaskets for any indication. __________________ 2011 2SS/RS M6 CGM Rotofab CAI, Kooks 1 7/8, Corsa (LS3)

02-04-2012, 12:39 PM	#13
BossHogg Mexican SS Drives: Black 2SS/RS Join Date: Dec 2011 Location: Lake Charles, La Posts: 246 View My Garage	Imma have to take a look at that also..... i really gotta get this shit fixed........Thanks fellas __________________ *Black 2010 2SS/RS...* HP Tune.. Volant Cold Air Intake.. Smoked Tail Lights-Reverse Lights -Front/ Rear Corner Lenses Painted Bow Ties front & rear Pacesetter Long Tube Headers Magnaflow Competition Cat Back Exhaust.... Eibach Pro Lowering Kit Painted Heritage Grille 1969 Camaro Emblems *Phoenix Gold I-Amp Sound System* 22 inch Replica Wheels: [I]VMAX Ported Throttle Body [I/]

02-05-2012, 04:15 PM	#15
BossHogg Mexican SS Drives: Black 2SS/RS Join Date: Dec 2011 Location: Lake Charles, La Posts: 246 View My Garage	What exactly is Amisol Extended Life? __________________ *Black 2010 2SS/RS...* HP Tune.. Volant Cold Air Intake.. Smoked Tail Lights-Reverse Lights -Front/ Rear Corner Lenses Painted Bow Ties front & rear Pacesetter Long Tube Headers Magnaflow Competition Cat Back Exhaust.... Eibach Pro Lowering Kit Painted Heritage Grille 1969 Camaro Emblems *Phoenix Gold I-Amp Sound System* 22 inch Replica Wheels: [I]VMAX Ported Throttle Body [I/]

02-05-2012, 07:12 PM	#17
BossHogg Mexican SS Drives: Black 2SS/RS Join Date: Dec 2011 Location: Lake Charles, La Posts: 246 View My Garage	Oh ok I gotcha.....thanks __________________ *Black 2010 2SS/RS...* HP Tune.. Volant Cold Air Intake.. Smoked Tail Lights-Reverse Lights -Front/ Rear Corner Lenses Painted Bow Ties front & rear Pacesetter Long Tube Headers Magnaflow Competition Cat Back Exhaust.... Eibach Pro Lowering Kit Painted Heritage Grille 1969 Camaro Emblems *Phoenix Gold I-Amp Sound System* 22 inch Replica Wheels: [I]VMAX Ported Throttle Body [I/]

02-06-2012, 01:32 PM	#18
OBSSEST Drives: 2010 Camaro 2SS RS, Black Join Date: Sep 2009 Location: Sacramento Posts: 413	I think there is some level of valve tick that is acceptable after a cold startup and can be considered "normal". Mine will do this intermittently but it lasts for only 2-3 seconds. I think some others have had the tick continue for minutes or even longer. Personally, I don't trust my dealership to crack open the engine and do this repair properly until something really breaks. I've read that some people still have a few second ticking noise AFTER the valve replacement. So, I'd rather live with it and do nothing for now. I might try Amsoil for my next oil change just to see if it makes a difference.

02-06-2012, 01:40 PM	#19
justa25thTA Drives: 2011 Camaro SS/RS LS3 Join Date: Aug 2010 Location: Texas Posts: 1,553	and what would happen if it didn't get fixed? my 2004 GMC Sierra with the 5.3l just started making what I believe to be the ticking lifter noise. __________________ Yeah, I'll get around to it...

02-06-2012, 05:48 PM	#20
whitedemon Drives: 2010 Camaro SS Join Date: Dec 2011 Location: Louisiana Posts: 183	My l99 did the same thing. Bring it to the dealer, this is not uncommon so the dealer should be fairly quick. I am a GM tech and my dealership stocked all the parts, I did my total job in a day. Its not a huge job and it fixed mine and the other dozens we do too. Warranty pays for it so no reason not to get it done. good luck Sent from my SAMSUNG-SGH-I777 using Tapatalk __________________ 2010 Camaro 2SS/RS, L99, OBX Longtube Headers, Magnaflow 3in Comp Cat Back w/ added Dynomax Bullet Race Mufflers, SCT Tuner w/ JRE Tune, CAI Black Intake w/ JRE Race Scoop, Eibach Pro Springs, Custom Sequential Tailights

02-07-2012, 11:31 PM	#21
bumblebeecamaro ZL1 lover-4-life Drives: 2013 CRT ZL1 Join Date: Dec 2009 Location: Central FL Posts: 1,549 View My Garage	my engine has been fine for 17K miles. then, about two days ago, I heard a ticking noise as soon as I started the engine. it scared the crap out of me so I shut it off, restarted it and it was fine. it hasn't happened again and I'm hoping it was a fluke. (wishful thinking I'm sure). I'd like to think GM would replace the lifters in my L99 car. but I'm thinking they won't due to the S/Cer on my engine. what do you guys think? __________________ Click here for my ZL1 journal

02-29-2012, 07:33 PM	#22
Doomsday2005 Drives: SIM 2011 Camaro 2SS/RS Join Date: Jan 2012 Location: San Angelo Texas Posts: 60	I have a 2011 L99 SS that has made a ticking noise since day one and it does not stop after you start it, it does it as long as it is runing. It is very noticeable so i took it back to the dealer about 2 days after I bought it and they said it was the high pressure fuel injectors. I waited another 3 months or so and took it to another dealership for a second opinion same result, they said it was the high pressure fuel injectors. My car has 1786 miles on it and it's not my daily driver, I have had it since Oct of 2011. This thread kind of has me worried that it's not the injectors. Any advice? __________________ A6,LG Superpro 1 7/8 LT, Rotofab CAI, MSD Wires w/Boots, Eibach Pro Springs, Flowmaster Outlaw AB, TSW Nurburgring, Nitto Invo's, NS-1 Black Carbon Fiber Stripes, Oracle LED Conversion, Jannetty Racing Tune.

02-29-2012, 07:50 PM	#23
E.T. Drives: 2012 Camaro 2SS/RS Join Date: Jul 2010 Location: Cleveland, OH Posts: 2,555	So just wondering...is this lifter issue due to AFM? Is it better if the lifters are working all the time, like with AFM turned off, or would that make matters worse? How many of you who've had AFM tuned out have had this lifter problem? __________________ Solo Mach XL with J-Pipes · Cold Air Inductions Intake w/JRE Scoop · Jannetty SCT Tune· Roto-Fab Washer Bottle · Defenderworx Bowties · Vmax Ported TB · LPE 3.70 Gears · Dynatech SuperMAXX Headers · Elite Engineering Tunnel Brace · CFD Pistol Grip TapShifter · GM Strut Tower Brace

03-01-2012, 12:01 AM	#24
510SS Drives: 2010 1SS Silver Ice Metallic Join Date: Jul 2011 Location: Corona, CA Posts: 85	Mine only does the ticking a couple seconds after cold start up. Never thought anything of it.

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