05-23-2012, 11:18 PM | #1 | |
Drives: 2011 Camaro 2ss Convertible Join Date: May 2012
Location: Los Angeles
Posts: 175
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Horrible sounding 2011 2ss
Hi guys,
Been looking around for an answer to my question for ages now, but have not been able to find anything that resembles my issue. My issue is that I have a horrible sounding 2011 Camaro 2ss. Itīs flat out ridiculous and has been like this since day 1. I went back to the dealership with my car, they spent a day working on it only to tell me they had no idea what it was, before they came back to me with a pretty weak answer telling me "it was normal because of a spring loaded valve in the exhaust system". I did not settle with this and have been looking thoroughly around, also listened to every single Camaro Iīve seen on the road to see (or hear) if they have the same sound as mine. Result so far; Nada The sound can best be described as a rattling, or scraping sound coming from the exhaust. I thought it might have been the AFM, but from what Iīve read and heard from those threads itīs just not the same. To me it sounds like the sound you get when put it in the wrong gear (manual stick). The sound is there when the car is cold, warm, low speed, medium speed, high speed, accelerating, slowing down, in Park, in Drive and in Manual. Even when standing still (idle) Last edited by Eskilachi; 05-23-2012 at 11:45 PM. Reason: video posted |
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05-23-2012, 11:22 PM | #2 | |
Drives: 2010 Camaro 2LT/RS ABM Join Date: Sep 2009
Location: Sugar Land, TX
Posts: 13,075
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Today this lady with a 2ss vert drove by me and her car had a weird sounding exhaust too. it was stock and sounded like something was defiantly wrong with the car. It wasn't a rumble or anything it was a faint exhaust note almost like something was stuck and it was whistling.
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2LT, RS, AT6 ABM, Gray Leather
Quote:
1100 Order accepted at dealer: 9/15/2009 - NPGV41. 2000 Order accepted by GM: 9/29/2009 3000 Accepted By Production Control: 9/30/2009 - TPW 10/26/09 3100 Sequenced:10/12/09 3300 Scheduled For Production:10/13/09 3400 Broadcast:10/22/09 3800 Produced:10/27/09 4000 Available To Ship:10/28/09 4200 Shipped:10/29/09 5000 Delivered To The Dealer:11/09/09 6000 Delivered To Customer:11/12/09 |
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05-24-2012, 06:35 PM | #3 | |
Drives: 2011 Camaro 2ss Convertible Join Date: May 2012
Location: Los Angeles
Posts: 175
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I found a video on YouTube that is pretty much the exact same sound that I get from my car.
Apparently his mechanics did a better job than mine figuring it out. Not saying I have the same issue, but it sure does sound the same What do you guys think? (And just for the record; I have no idea what a left bank o2 sensor gasket is, donīt even know if I have it on my car. So if anyone knows wether or not a 2011 Camaro 2ss has that installed it would be awesome since I can describe it to my dealer and make them fix it.) |
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05-24-2012, 08:16 PM | #4 |
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Drives: 2015 ZL1 6 speed Join Date: Feb 2011
Location: Ideal Garage aka (Grayskull) Fords, nj
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Hard to hear anything on those vids. maybe its just an exhaust leak.
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06-02-2012, 07:55 PM | #5 |
Drives: 2011 Camaro 2ss Convertible Join Date: May 2012
Location: Los Angeles
Posts: 175
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Well, I got an answer today after a visit at a dealership. Itīs a spring-loaded valve installed in 2011 and 2012 Camaros to reduce AFM-noise. (Which doesnīt help since it actually makes another noise instead, a noise that is much more annoying if you ask me and makes the car sound like itīs broken). They will not fix it under warranty, in other words they will not admit their mistake.
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06-02-2012, 08:02 PM | #6 | |
Drives: 2010 2SS/RS IOM/IOM #3625 Join Date: Jun 2008
Location: Greater Toronto Area
Posts: 1,902
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Quote:
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666 EVIL RWHP BUILT AND TUNED BY SHIFTED PERCEPTIONS INC.(SPi)
416 Forged Stroker, E-Force Supercharger, Blower Cam, Rotofab CAI, Stainless Works 2" LT Headers and 3" Exhaust, LPE ZR1 Twin Disc Clutch, DSS 1400 HP Axles, Pfadt Performance Kit Stage 3. |
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06-02-2012, 08:39 PM | #7 |
Drives: 2011 Camaro 2ss Convertible Join Date: May 2012
Location: Los Angeles
Posts: 175
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Oh yeah! I already got it actually.. lol. I ordered it last week because I was so sick of the rubbish sound I have. But wanted to take it in just to make sure it was the exhaust system that made the sound and not something else. I talked with the service rep for quite some time, and I asked him straight out "Will the sound go away if I change the exhaust system?". And he said that it probably would, but that I had to think about it twice since it could void the warranty. We then had a discussion about warranty in which we pretty much agreed that it would only void the warranty for the exhaust (obviously), but he also said that I might be in trouble if something happened that couldīve been caused by an aftermarket exhaust.
But yeah, Iīm not gonna drive around with that exhaust anymore. If so, I could just as well buy a totaled Lada, because they sound just the same. |
06-02-2012, 08:42 PM | #8 |
Drives: 2018 Hyper Blue 1SS 1LE Join Date: Jul 2011
Location: Brownsburg, Indiana
Posts: 6,231
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Hate the way mine sounds. I can hear it around 40-45 mph. I have flowmasters in the garage waiting to be installed
Ryan Sent from my iPhone using Tapatalk
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Ryan
* 2018 1SS 1LE Camaro Hyper Blue Metallic Car Build: http://www.camaro6.com/forums/showth...0#post10049680 |
06-02-2012, 08:54 PM | #9 |
Drives: 2011 Camaro 2ss Convertible Join Date: May 2012
Location: Los Angeles
Posts: 175
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Nice, I got the Borla ATAK cat-back. Have a feeling it might be LOUD, but whatever. Iīd rather have the sound of babies crying than the scraping sound I have now
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06-03-2012, 05:14 AM | #10 |
Drives: 2010 2SS/RS IOM/IOM #3625 Join Date: Jun 2008
Location: Greater Toronto Area
Posts: 1,902
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You might just as well have the neighbors pissed off about the noise too, ya know their already jealous
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666 EVIL RWHP BUILT AND TUNED BY SHIFTED PERCEPTIONS INC.(SPi)
416 Forged Stroker, E-Force Supercharger, Blower Cam, Rotofab CAI, Stainless Works 2" LT Headers and 3" Exhaust, LPE ZR1 Twin Disc Clutch, DSS 1400 HP Axles, Pfadt Performance Kit Stage 3. |
06-03-2012, 11:07 AM | #11 |
Drives: 2011 Camaro 2ss Convertible Join Date: May 2012
Location: Los Angeles
Posts: 175
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Haha.. Yeah. I live in a kinda noisy neighborhood anyway, so I donīt think I will make too much of a difference My parking is in an underground parking garage, so no one can hear me start it up (unless they are also in the garage obviously).
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06-07-2012, 08:19 PM | #12 |
Drives: . Join Date: Nov 2010
Location: USA
Posts: 856
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I had the Flowmaster 40's on the automatic L99 I had, reso delete. You could really hear that nasty AFM kick in after that. Car would sound great until that moment when sounds like it lost everything. Made that car disappear after a few months for the LS3. Wifey drives a 2SS L99, but we're still on the fence with the AFM. It's not as bad on hers as it was on mine when I had it (before the exhaust upgrade) so still thinking about it. Right now, it's major convertible top issues and I will not dump any $$ into it until this is resolved.
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Tags |
2011, 2ss, camaro, noise |
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