knocking noise at a slow roll - L99 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

wade · 07-14-2010, 08:56 PM

i have right at 16k miles on my 2SS L99 and i just noticed today that whenever i'm rolling at a low speed (5-10mph) i hear a feint knocking noise. once i stop, the noise stops. this happens in any gear and it seems louder in reverse.

it sounds like it's coming from underneath the console on the drivers side, but kind of hard to tell for sure.

i'm taking it to the dealer as soon as i can, but was just wondering if anyone else has had this problem.

MyIBMssRS · 07-14-2010, 11:31 PM

No knock problems here. Also have the L99. Good luck.

buzzy56 · 07-14-2010, 11:35 PM

Exhaust hitting on tunnel? Earlier posts showed some had this problem.Re-adjusted pipes additional clearance fixed??? Just maybe.

Silver Ice Man · 07-14-2010, 11:39 PM

I had the same thing with my Auto 6, but of course when I take it to the dealer it wouldn't make the noise.
Anyway after I went to Long Tube Headers and high flow cats it went away, I have heard the same from others as well that when they changed out to an aftermarket exhaust it went away.
Please let us know what the dealer says or finds out for you.

wade · 07-15-2010, 01:54 PM

yeah, i was going to bring it to the dealer before i went into work today and it wouldn't make the noise the whole way... lol

thanks for the replies, it probably is just the exhaust rattling around. all the more reason to go ahead and get long tube headers

if it happens again and i figure out what it is for sure i'll let you guys know.

Cam 427 · 07-15-2010, 04:33 PM

You might have your drive line looked at.

Michelle42780 · 07-15-2010, 04:34 PM

Trunk Monkey's!!

Sorry, I had to

Gunmetal · 07-15-2010, 04:36 PM

ha, gremlins are at it again

jtzako · 07-15-2010, 04:41 PM

Mine had the exhaust (resonator) hitting the cross brace. Sounds like it is coming from farther forward than it actually was.

07-14-2010, 08:56 PM	#1
wade Drives: 2010 Camaro 2SS/RS Join Date: Jul 2009 Location: Louisiana Posts: 45	knocking noise at a slow roll - L99 i have right at 16k miles on my 2SS L99 and i just noticed today that whenever i'm rolling at a low speed (5-10mph) i hear a feint knocking noise. once i stop, the noise stops. this happens in any gear and it seems louder in reverse. it sounds like it's coming from underneath the console on the drivers side, but kind of hard to tell for sure. i'm taking it to the dealer as soon as i can, but was just wondering if anyone else has had this problem.

07-14-2010, 11:35 PM	#3
buzzy56 buzzy56 Drives: 2ss summit white L99 Join Date: Nov 2009 Location: paradise Posts: 1,115 View My Garage	Exhaust hitting on tunnel? Earlier posts showed some had this problem.Re-adjusted pipes additional clearance fixed??? Just maybe. __________________ OLD SCHOOL / NEW SCHOOL COOL

07-14-2010, 11:39 PM	#4
Silver Ice Man Drives: 2014 2SS/RS Spring limited edition Join Date: Jul 2009 Location: Drayton Valley, Ab Posts: 492	I had the same thing with my Auto 6, but of course when I take it to the dealer it wouldn't make the noise. Anyway after I went to Long Tube Headers and high flow cats it went away, I have heard the same from others as well that when they changed out to an aftermarket exhaust it went away. Please let us know what the dealer says or finds out for you. __________________ 2014 2SS/RS, Spring Limited Edition... Ask yourself.....when you turn on your car..... Does it return the favor..... MODS: CIA cold air intake, Oil catch can, Dynatech LT Headers, Dynatech Power cats, Dynatech Cat back exhaust, Janetty racing tune, Vitesse throttle controller, Headlight and marker tint, more to follow....

07-15-2010, 04:34 PM	#7
Michelle42780 Cracker Drives: 2010 2LT/RS Summit White/Beige Join Date: May 2010 Location: Azle, TX Posts: 557 View My Garage	Trunk Monkey's!! Sorry, I had to __________________ 2010 Camaro \| 2LT \| RS \| Summit White \| Beige Interior \| Born: 5/10/10 \| Purchased 5/28/10

07-15-2010, 04:41 PM	#9
jtzako Drives: 2010 IBM Camaro SS Join Date: Jun 2007 Location: DFW, Tx Posts: 1,157	Mine had the exhaust (resonator) hitting the cross brace. Sounds like it is coming from farther forward than it actually was. __________________ 2010 Camaro SS Imperial Blue \| CAI Inc, CAI \| Solo Hi Flow Cats \| X-Pipe \| Backup Camera \| PDIM

07-14-2010, 11:31 PM	#2
MyIBMssRS Drives: 10 IBM SS RS/14 1500 Z71 Join Date: Jan 2010 Location: Lehigh Valley, PA Posts: 1,577	No knock problems here. Also have the L99. Good luck.

07-15-2010, 01:54 PM	#5
wade Drives: 2010 Camaro 2SS/RS Join Date: Jul 2009 Location: Louisiana Posts: 45	yeah, i was going to bring it to the dealer before i went into work today and it wouldn't make the noise the whole way... lol thanks for the replies, it probably is just the exhaust rattling around. all the more reason to go ahead and get long tube headers if it happens again and i figure out what it is for sure i'll let you guys know.

07-15-2010, 04:33 PM	#6
Cam 427 Drives: 2010 2SS Join Date: Apr 2010 Location: Washington Posts: 677	You might have your drive line looked at.

07-15-2010, 04:36 PM	#8
Gunmetal Drives: Cyber Grey 1SS/RS w/Body Kit Join Date: Sep 2009 Location: Swansea, Illinois Posts: 389	ha, gremlins are at it again

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