Can someone try a test for me ? LS3 MN6 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

GraySS2011 · 07-19-2012, 07:11 PM

Hi:

I have a 2011 (10,700 miles) SS RSS MN6 LS3. I am hearing a "clunk" not too loud when I come off the floor with the clutch. I assume I am hearing the clutch engage, I just want to know if it is normal.

I hear this when:

1. I am in the garage (no street noise).
2. Car is running.
3. Shift is in neutral , foot on the brake.
4. Press the clutch pedal all the way to the floor.
5. Bring the clutch up.
6. I hear a clunk noise as the clutch is about a third off the floor.
7. If you pump the clutch up and down it is more easily heard.

If I turn the motor off and repeat the test I hear nothing.

Anyone else hear this noise?

Thank you,

Bob
Greatly appreciate if someone could try this test for me.

tomlink · 07-19-2012, 07:19 PM

I'd say you are hearing the non-moving clutch disk engaging a moving flywheel.

On my V6 I hear nothing in that scenario.

5ohcamaro · 07-19-2012, 07:23 PM

ive heard the same noise in mine. its only when i engage the clutch to go into second or neutral. the clunk also shakes the car a little. i have also noticed that if im light with the clutch it wont do it... its very strange but also not the first car ive heard it in.

GraySS2011 · 07-19-2012, 07:50 PM

Thanks for replies ..

- maybe it is an LS3 thing.

- the car is not moving so I am not shifting (as you mentioned shifting into second)..motor is running , car is stationary, shifter is in neutral and it's when in that state I pump the clutch up and down I can hear a "clunk".

Heaven_is_inferno_orange · 07-19-2012, 08:56 PM

My 2011 LS3 has never made that noise under any ocndition. I advise taking it into the dealership and having it looked at.

1BADLS3 · 07-19-2012, 09:39 PM

Throwout bearing? Master cylinder? Clutch disc? All of these things make minor noises.

Coyotekiller · 07-19-2012, 10:17 PM

I say it's normal trans noise for a manual. You got a lot of parts that have to engage other parts in order to get the car to move. Mine doesn't really make much noise when I engage or disengage the clutch but I know some of my other cars that were manuals would make noise.

LimaCharlie · 07-19-2012, 11:23 PM

My 2011 LS3/MN6 makes the same sound. It depends on how fast I release the clutch though. I barely hear it if I release the clutch slowly.
This has never really bothered me because it has made the sound since the car was new. The clutch feel and performance has not degraded since new too. I think it's simply the clutch disc making full contact with the flywheel and the sound is the from the sudden engagement of both parts.

Mightygrasshopper · 07-20-2012, 12:04 AM

i don't think that's normal, but hard to tell given that this is a forum.

REDXIIIDave · 07-20-2012, 02:51 AM

He's talking about pushing the clutch in and out when in NEUTRAL. Doesn't sound normal to me.

Coyotekiller · 07-20-2012, 08:37 AM

Quote:

Originally Posted by REDXIIIDave

He's talking about pushing the clutch in and out when in NEUTRAL. Doesn't sound normal to me.

It's still moving parts contacting non-moving parts. Mine only makes the noise if you release the clutch quickly and its not really that loud at all. Honestly I've driven other cars and they were louder. I'm not too concerned about it.

GraySS2011 · 07-20-2012, 09:31 AM

Quote:

Originally Posted by LimaCharlie

My 2011 LS3/MN6 makes the same sound. It depends on how fast I release the clutch though. I barely hear it if I release the clutch slowly.
This has never really bothered me because it has made the sound since the car was new. The clutch feel and performance has not degraded since new too. I think it's simply the clutch disc making full contact with the flywheel and the sound is the from the sudden engagement of both parts.

QUOTE=Coyotekiller;5317839] It's still moving parts contacting non-moving parts. Mine only makes the noise if you release the clutch quickly and its not really that loud at all. Honestly I've driven other cars and they were louder. I'm not too concerned about it.[/QUOTE]

I surfed the web and looked at all the posts here and I think you are both right on the money.

The flywheel is spinning and the clutch plate is mating up to it. I tried your test and when I release the clutch out ever so slowly, no noise to a real faint noise. But pumping the clutch up and down , there is an obviuos noise. I hate taking the car to the dealership unless I have to, so this information has been great. Thank you all !!

Bob

STW · 07-20-2012, 10:11 AM

Mines made clank/mechanical noise (1st, 2nd, or neutral at 10 mph) since the day I got it. Unrefined, however I accepted it long ago. It's a muscle car, not an M3. I turned over 38,000 miles last week.

strych9 · 07-20-2012, 10:24 AM

That's a normal condition. When you engage the clutch, the transmission internals begin spinning after being at a dead stop. The natural clearances between the gears meshing together suddenly tighten up, and you get a brief clunk from it.

If you listen carefully when idling in neutral with no foot on the clutch pedal, you can hear a little clattering coming from the transmission. It's called, "gear roll-over" noise, and caused by the pulses of the engine firings working against those clearances also.

Hammer down and enjoy.

07-19-2012, 07:11 PM	#1
GraySS2011 Drives: 2011 Cyber Gray 2SS 6 speed Join Date: Jan 2012 Location: Chelmsford MA Posts: 504 View My Garage	Can someone try a test for me ? LS3 MN6 Hi: I have a 2011 (10,700 miles) SS RSS MN6 LS3. I am hearing a "clunk" not too loud when I come off the floor with the clutch. I assume I am hearing the clutch engage, I just want to know if it is normal. I hear this when: 1. I am in the garage (no street noise). 2. Car is running. 3. Shift is in neutral , foot on the brake. 4. Press the clutch pedal all the way to the floor. 5. Bring the clutch up. 6. I hear a clunk noise as the clutch is about a third off the floor. 7. If you pump the clutch up and down it is more easily heard. If I turn the motor off and repeat the test I hear nothing. Anyone else hear this noise? Thank you, Bob Greatly appreciate if someone could try this test for me.

07-19-2012, 07:23 PM	#3
5ohcamaro Drives: 2012 black 1LS Camaro Join Date: Jun 2012 Location: Sterling, VA Posts: 156	ive heard the same noise in mine. its only when i engage the clutch to go into second or neutral. the clunk also shakes the car a little. i have also noticed that if im light with the clutch it wont do it... its very strange but also not the first car ive heard it in. __________________

07-19-2012, 08:56 PM	#5
Heaven_is_inferno_orange Savage Setsuna Drives: 16' 2SS, 12 ZL1, RIP Sasuke Join Date: Sep 2011 Location: Fort Knox KY Posts: 1,379 View My Garage	My 2011 LS3 has never made that noise under any ocndition. I advise taking it into the dealership and having it looked at. __________________ Sasuke's Build Thread http://www.camaro5.com/forums/showthread.php?p=5352161&posted=1#post5352161

07-19-2012, 11:23 PM	#8
LimaCharlie Drives: 2011 Camaro SS/RS - 2004 Silverado Join Date: Mar 2010 Location: Las Vegas, NV Posts: 2,989	My 2011 LS3/MN6 makes the same sound. It depends on how fast I release the clutch though. I barely hear it if I release the clutch slowly. This has never really bothered me because it has made the sound since the car was new. The clutch feel and performance has not degraded since new too. I think it's simply the clutch disc making full contact with the flywheel and the sound is the from the sudden engagement of both parts. __________________ 2011 Summit White Camaro 1SS/RS -6.2 LS3, TR6060, 3.45, G80 2004 Black Silverado 1500 2WD Regular Cab, Short Bed -5.3 LM7, 4L60E, 3.42, G80 2014 White Caprice PPV -6.0 L77, 6L80E, 2.92, G80 Last edited by LimaCharlie; 07-20-2012 at 12:17 AM.

07-20-2012, 12:04 AM	#9
Mightygrasshopper Drives: 2012 45th anniversary edition 'vert Join Date: Mar 2010 Location: Vancouver, Canada Posts: 277	i don't think that's normal, but hard to tell given that this is a forum. __________________ MightyGrasshopper www.mightygrasshopper.com Into health, wellness and fitness? Check out my site for natural health product reviews, health articles and industry news. Want to get into summer time shape? I'm a former fatty who's lost the weight - "Train With Me" for FREE - sexy abs in 16 weeks! Just follow along!

07-19-2012, 07:19 PM	#2
tomlink Drives: 2011 Camaro 2LT RS Join Date: Apr 2011 Location: New Bern, NC Posts: 953 View My Garage	I'd say you are hearing the non-moving clutch disk engaging a moving flywheel. On my V6 I hear nothing in that scenario.

07-19-2012, 07:50 PM	#4
GraySS2011 Drives: 2011 Cyber Gray 2SS 6 speed Join Date: Jan 2012 Location: Chelmsford MA Posts: 504 View My Garage	Thanks for replies .. - maybe it is an LS3 thing. - the car is not moving so I am not shifting (as you mentioned shifting into second)..motor is running , car is stationary, shifter is in neutral and it's when in that state I pump the clutch up and down I can hear a "clunk".

07-19-2012, 09:39 PM	#6
1BADLS3 Drives: Sold: 2011 2SS/RS Join Date: Dec 2010 Location: United States Posts: 1,896	Throwout bearing? Master cylinder? Clutch disc? All of these things make minor noises.

07-19-2012, 10:17 PM	#7
Coyotekiller Account Suspended Drives: 2012 AGM 2SS Join Date: Feb 2012 Location: Beaufort, NC Posts: 1,383	I say it's normal trans noise for a manual. You got a lot of parts that have to engage other parts in order to get the car to move. Mine doesn't really make much noise when I engage or disengage the clutch but I know some of my other cars that were manuals would make noise.

07-20-2012, 02:51 AM	#10
REDXIIIDave El Chupacabra Drives: 2011 2SS/RS A6 Black/Black Join Date: Jun 2011 Location: Lakewood, CO Posts: 923	He's talking about pushing the clutch in and out when in NEUTRAL. Doesn't sound normal to me. __________________ El Chupacabra

07-20-2012, 10:11 AM	#13
STW Drives: 2011 Camaro 1SS/RS LS3 Join Date: Apr 2012 Location: Chicago Posts: 422	Mines made clank/mechanical noise (1st, 2nd, or neutral at 10 mph) since the day I got it. Unrefined, however I accepted it long ago. It's a muscle car, not an M3. I turned over 38,000 miles last week.

07-20-2012, 10:24 AM	#14
strych9 I'll be back... Drives: Subaru, HD Road Glide Special Join Date: Apr 2012 Location: Omaha, NE Posts: 3,036 View My Garage	That's a normal condition. When you engage the clutch, the transmission internals begin spinning after being at a dead stop. The natural clearances between the gears meshing together suddenly tighten up, and you get a brief clunk from it. If you listen carefully when idling in neutral with no foot on the clutch pedal, you can hear a little clattering coming from the transmission. It's called, "gear roll-over" noise, and caused by the pulses of the engine firings working against those clearances also. Hammer down and enjoy. __________________ Bye bye, Bumblebee! --------------------------------------------------------------------------------------- Build Journal My Garage GoPro Mic Hack