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Old 11-14-2010, 09:27 AM   #1
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ticking noise from engine???

started my camaro up this morning and heard a ticking noise coming from the engine. popped the hood and got close to hear where it was coming from. seems to be coming from drivers side near the headers. it ticks about 2-3 ticks per sec. was louder when i started it, faded a little but remained for the next 2 minutes i let it run.

anyone any ideas?????
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Old 11-14-2010, 09:32 AM   #2
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Same thing here...Got mine in April...I think there is a thread
on this on the forum...Same here on start up you really here
it and after 10 - 15 seconds it goes away...Someone will chime
in with answers for you bud...Don't think we should worry
about it...
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Old 11-14-2010, 09:34 AM   #3
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Could indicate a hydralic lifter pumping up slowly. Is you oil correct and clean?
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Old 11-14-2010, 09:34 AM   #4
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yeah, freaks me out a little - only had the car 15 months. hopefully nothing, but you have to be careful.
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Old 11-14-2010, 09:35 AM   #5
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Quote:
Originally Posted by Hall of Fame View Post
Could indicate a hydralic lifter pumping up slowly. Is you oil correct and clean?
have an l99 - have 8 quarts of rp 5/30 in there - with about 2500 miles on the oil. will be replacing it soon.
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Old 11-14-2010, 09:36 AM   #6
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most likely injectors. When they are cold they are sometimes more noticable, but they always make a little noise, usually not loud enough to get youor attention.
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Old 11-14-2010, 09:42 AM   #7
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went out to double check oil level and how clean - level was good and it was surprisingly clean (love rp oil). started it up again - same ticking noise but a little softer - gave the engine a good hard rev - noise went away after that - what's up??

if it is injectors, do i need to see the dealer about this - hell the car is only 15 months old and its not that cold here - about 40 degrees and my car is garaged. problem???
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Old 11-14-2010, 09:51 AM   #8
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Nope, normal injector noise, usually becomes less noticable with warmth. I used ZMAX fuel treatment which took almost all noise away, acts as a lubricant. But no matter what you do, injectors will always make a little clicking/tapping noise.
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Old 11-14-2010, 09:54 AM   #9
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Is yo garage heated (?), if not, it might just be the oil, it's thick when cold, as the motor worms up & goes away, it might not be a bad thing, but if its worm or hot and still does it, you might have it checked.
Hope that helps.


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Old 11-14-2010, 10:06 AM   #10
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There is a tsb out on the afm lifters making noise.You can do a search and find it and also check with your dealer.
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Old 11-14-2010, 10:23 AM   #11
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There is a tsb out on the afm lifters making noise.You can do a search and find it and also check with your dealer.
Everyone at the dealers is deaf. They have a very hard time "duplicating issues" that involve listening to anything. And if they DO hear something, then it's "normal".
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Old 11-14-2010, 10:54 AM   #12
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Check the spark plug wires.

Its probably not the issue cause I believe it would turn on your T/C light, but it couldn't hurt. I know when I put on my headers I began hearing a ticking sound, which turned out to be a loose spark plug wire.
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Old 11-14-2010, 11:25 AM   #13
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Everyone at the dealers is deaf. They have a very hard time "duplicating issues" that involve listening to anything. And if they DO hear something, then it's "normal".
+1 on that

I've been in 2x so far for lifters and they insist it's normal injector noise.
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Old 11-14-2010, 03:13 PM   #14
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Anybody have an update on this? I just bought a V6 Camaro a week and didn't notice when I bought it. It does it all the time, no matter if its cold or warm, but only does it at idle. Im gonna see about taking it in, it only has 17000 on it. Thanks
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Old 11-14-2010, 03:28 PM   #15
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+1 on that

I've been in 2x so far for lifters and they insist it's normal injector noise.
Then you ask "If it's normal, then why is there a TSB out describing a fix for it?" - And that's when they stare blankly and shrug their shoulders.
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Old 11-14-2010, 08:47 PM   #16
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its the AFM lifters

only solution is a DOD/AFM delete kit to replace the AFM lifters with LS7 ones. and if your willing to do that just to get rid of the ticking, you might as well install a cam and port your heads while there off!
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Old 11-14-2010, 08:55 PM   #17
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Quote:
Originally Posted by maxpower5 View Post
started my camaro up this morning and heard a ticking noise coming from the engine. popped the hood and got close to hear where it was coming from. seems to be coming from drivers side near the headers. it ticks about 2-3 ticks per sec. was louder when i started it, faded a little but remained for the next 2 minutes i let it run.

anyone any ideas?????
As they said...follow the thread on lifter noise but here is another CLUE: Headers...
Just check to make sure your headers didn't spit a gasket. More than one time in my old racing days header bolts backed out and caused the header to "pop" just like your are describing. It was particularly noticeable when the engine was cold. As the head warmed up and the header warmed up they closed the gap. But more likely than not it is the lifter(s).
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Old 11-14-2010, 09:01 PM   #18
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I've had mine for 17 months and mine does it most of the time and they tell me it's normal. I really don't like it myself.
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Old 11-14-2010, 09:07 PM   #19
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Not only does mine do it....has from the start, but my 4th gen did it too. It is the lifters ticking, and it's normal.
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Old 11-14-2010, 09:24 PM   #20
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Quote:
Originally Posted by maxpower5 View Post
have an l99 - have 8 quarts of rp 5/30 in there - with about 2500 miles on the oil. will be replacing it soon.
I stopped using Royal Purple in my cars, the 2 that had it started "using" oil and never had previously. Reinstalled Mobil 1, 5W30 EP & never had any further problems.

I never did pur RP in the '10 or the '67...
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Old 11-14-2010, 09:50 PM   #21
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i just changed my oil after 1k with mobile 1 v6 and i got it after start up but only when its cold otherwise its only when i first start up the car but its always cold in ny now.
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Old 11-14-2010, 10:09 PM   #22
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My L99 ticks-- I timed it-- 20 seconds noisy-- 30 seconds better-- 1-2 min quiet... I called service manager, and made appointment to see him... He said there was a TSB and he would look for a updated one... He said e.g. people who use remote start often would never hear it lol He said he would do whatever it took to make me happy! He claims the car will not 'hurt" itself... I have a 01 6.0L that ticks and clatters and runs like champ.. and a 07 5.3 that runs quiet
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Old 11-15-2010, 07:10 PM   #23
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Well that souns like what my problem is. I think that I will take it in and have the dealer take a look at it. I would rather not have a problem. Like I said I am new to Camaros but you want to know anything about Jeeps, I'm your man!
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Old 11-16-2010, 10:20 AM   #24
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Bulletin

Hope this helps.



#10-06-01-007A: AFM Engine, Valve Tick Noise at Start Up When Engine has been Off for 2 Hours or M - (Oct 14, 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 Cadillac Escalade
2007 Chevrolet Monte Carlo
2007-2009 Chevrolet Impala
2007-2010 Chevrolet Avalanche, Silverado, Suburban, Tahoe, TrailBlazer
2010 Chevrolet Camaro SS
2007-2010 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 engine RPO LZ1 and the 2010 Cadillac Escalade. Please discard Corporate Bulletin Number 10-06-01-007 (Section 06 - Engine/Propulsion System).
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2538837&from=bcpi#ss1-2538837">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.
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2538837&from=bcpi#ss2-2538837">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.


<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2538837&from=bcpi#ss3-2538837">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:
  1. <LI type=1>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.

  1. Note: Allow at least a two hour soak time between engine OFF and start up when evaluating the tick noise.
  2. 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.
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2538837&from=bcpi#ss4-2538837">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
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2538837&from=bcpi#ss5-2538837">Warranty Information (excluding Saab Models)

For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
J0627
Valve Lifter Replacement - Both Sides
Use Published Labor Operation Time
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=2538837&from=bcpi#ss6-2538837">Warranty Information (Saab Models)

For vehicles repaired under warranty, use:
Saab Labor Operation
Description
Failed Object
Fault/Reason Code
Location Code
Warranty Type
Repair/Action Code
STM Labor Time
21421-12
Replace part, Depressor
21421
40
5
1
01 (Replace)
Use Published STM Labor Operation Time
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.

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Old 11-17-2010, 04:12 AM   #25
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I took mine in and had the lifters replaced at my dealer and it sounds great now!
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