Does your car make this noise? - Page 3

Blackdevil77 · 03-02-2016, 04:34 PM

Quote:

Originally Posted by ocautomotive

No it does not. Even if it did, nobody on this thread with a M6 is saying they can hear it, so it has to be an abnormal sound.

Quote:

Originally Posted by Eric SS

I'm pretty sure the M6 still has the AFM hardware, it's just tuned out. I could be wrong but I think that has been the consensus.

Yeah that's what I thought. Why spend the extra money to change the hardware on the engine depending on what transmission the car has? Much easier and cheaper to just turn it off via tune. If that's the case, which I believe it is, that AFM hardware is still being used (lifters etc).

Modshack · 03-02-2016, 04:40 PM

Quote:

Originally Posted by Eric SS

I'm pretty sure the M6 still has the AFM hardware, it's just tuned out. I could be wrong but I think that has been the consensus.

Mine doesn't. On the C7 Corvette there was a second set of valves in the exhaust system that activated to reduce Noise and resonance. Not sure of the A8 Camaro has these, but the M6 does not..The Cylinder disconnect is likely handled Via software and VVT..

You can see the valves just above the mufflers in this C7 cutaway..

Jeb114 · 03-02-2016, 05:21 PM

Sounds normal, these direct injection engines have high pressure fuel pumps and you are going to here the injectors more in these cars.

ocautomotive · 03-02-2016, 07:01 PM

Dealer said it is normal but they want to take the belts and the intake manifold off to check everything though....It seems wierd that they say it is normal but wants to check, but I am glad they are doing so.

EarthToGreg · 06-23-2017, 10:39 PM

Quote:

Originally Posted by BadBillyJack

sounds to me like it falls under this Technical Bulletin

#15-NA-040: Rattle or Flutter Noise When Switching Between V4 and V8 Operating Modes - Some customers may comment on a rattle noise at 48 km/h (30 mph) to 64 km/h (40 mph) when the engine is switching between V4 and V8 and/or notice fluid leaking from the bellow on top of the tensioner.

Correction- If diagnosis in SI does not isolate the noise, replace the drive belt tensioner.

After some testing, I'm pretty sure that this is what my car is experiencing. I only notice the noise when it's in V4, usually between 30-40mph.

My question is, what exactly does a Technical Bulletin mean I should do? Take it. Ack to the dealership?

elementaltoad · 06-24-2017, 02:50 AM

I can't say I've paid particular attention to noises on decel at around 3k RPM, but as loud as that sounds on video, I would say it's not normal. I have a M6 and haven't heard that yet.

Definitely update us and let us know what it is if they find anything.

Reaper333 · 02-20-2018, 07:54 AM

I have my car in right now for this exact issue. They are replacing the tensioner. So who knows if it will fix the issue. But it is definitely not normal and is extremely annoying. Even worse if your going up a hill.

LT4Greg · 02-20-2018, 09:17 AM

Sorry I can't hear any strange noise either. I pulled the foam out of the sound tube, pulled the exhaust fuse and set my NPP to track mode on my SS. I do hear some air intake noise when shifting and running hard sometimes. I would keep tabs on it and if it gets worse take it back to the dealer and let them check it again. Good luck!

LT4Greg · 02-20-2018, 09:19 AM

And I do have a Cold Air Inductions CAI system so mine will not have a stock airbox sound.

squish72 · 05-24-2018, 01:17 PM

I didnt want to bring a corpse from the grave but I had this issue and feel I figured it out and might be able to help anyone else in the future.

Little back story, I bought a low millage 2016 2SS and it already had a CAI intake on it. On the 240 mile drive home I kept hearing this noise and was worried I bought a junk car luckily that was not the case. I came across a thread talking about removing the foam in the sound tube, since it was a
quick easy job I decided to try it and if I didnt like it I could easily return it.
Well the sound I was hearing actually got WAY louder and was exactly what I
must have been hearing. I reinstalled the foam plug and I traced the tube to the firewall above the throttle pedal and inserted a square chunk of memory foam I had. The sound now is gone and I can actually hear the true sounds of the wonderful LT1 and not some fake rattle that the sound tube was filling the cabin with.

W16camaro2SS · 07-11-2018, 04:38 PM

Has anyones car make this noise before? https://youtu.be/iwVLbkIp-uA

squish72 · 07-11-2018, 04:46 PM

Quote:

Originally Posted by W16camaro2SS

Has anyones car make this noise before? https://youtu.be/iwVLbkIp-uA

Very hard to tell in the video where the sound is coming from. Almost sounds like a heat shield rattle from what I can tell. Check the all heat shields down the exhaust system first.

Gunkk · 07-11-2018, 06:25 PM

Quote:

Originally Posted by W16camaro2SS

Has anyones car make this noise before? https://youtu.be/iwVLbkIp-uA

Yep, loose heat shield.

Lifetaken · 09-03-2020, 10:36 PM

Sorry for reviving this old thread but did you ever get this fixed with the dealer replacing the belts and such, or is this in fact normal? Mine makes this exact noise in this exact RPM range as well.

06-24-2017, 02:50 AM	#34
elementaltoad Drives: 2016 Camaro 2SS Join Date: Oct 2016 Location: Spring, Texas Posts: 42	I can't say I've paid particular attention to noises on decel at around 3k RPM, but as loud as that sounds on video, I would say it's not normal. I have a M6 and haven't heard that yet. Definitely update us and let us know what it is if they find anything. __________________ 2016 Camaro 2SS Garnet Red 6 Speed 1990 Firebird Formula WS6 1989 Firbird Formula 350 WS6, LS Swapped

02-20-2018, 09:17 AM	#36
LT4Greg Drives: 2017 Camaro ZL1 Coupe Join Date: May 2016 Location: Georgia Posts: 5,813	Sorry I can't hear any strange noise either. I pulled the foam out of the sound tube, pulled the exhaust fuse and set my NPP to track mode on my SS. I do hear some air intake noise when shifting and running hard sometimes. I would keep tabs on it and if it gets worse take it back to the dealer and let them check it again. Good luck! __________________ ZL1 Coupe, PDR, Exposed carbon fiber hood insert, My Link with Nav, M6 6 speed and Silver Ice Metallic. Mods done: ceramic window tint, GM Accessories Camaro floor mats and Roto-Fab CAI.

02-20-2018, 09:19 AM	#37
LT4Greg Drives: 2017 Camaro ZL1 Coupe Join Date: May 2016 Location: Georgia Posts: 5,813	And I do have a Cold Air Inductions CAI system so mine will not have a stock airbox sound. __________________ ZL1 Coupe, PDR, Exposed carbon fiber hood insert, My Link with Nav, M6 6 speed and Silver Ice Metallic. Mods done: ceramic window tint, GM Accessories Camaro floor mats and Roto-Fab CAI.

03-02-2016, 05:21 PM	#31
Jeb114 Drives: 2021 300 Join Date: Jan 2015 Location: New Jersey Posts: 968	Sounds normal, these direct injection engines have high pressure fuel pumps and you are going to here the injectors more in these cars.

03-02-2016, 07:01 PM	#32
ocautomotive Drives: 2017 ZL1 and 2018 SS 1LE Join Date: Oct 2015 Location: Orange County Posts: 567	Dealer said it is normal but they want to take the belts and the intake manifold off to check everything though....It seems wierd that they say it is normal but wants to check, but I am glad they are doing so.

02-20-2018, 07:54 AM	#35
Reaper333 Drives: 2016 Camaro 2SS Black.. Join Date: Jul 2017 Location: VA Posts: 54	I have my car in right now for this exact issue. They are replacing the tensioner. So who knows if it will fix the issue. But it is definitely not normal and is extremely annoying. Even worse if your going up a hill.

05-24-2018, 01:17 PM	#38
squish72 Drives: 2016 2SS 8AT Join Date: May 2018 Location: Nevada Posts: 358	I didnt want to bring a corpse from the grave but I had this issue and feel I figured it out and might be able to help anyone else in the future. Little back story, I bought a low millage 2016 2SS and it already had a CAI intake on it. On the 240 mile drive home I kept hearing this noise and was worried I bought a junk car luckily that was not the case. I came across a thread talking about removing the foam in the sound tube, since it was a quick easy job I decided to try it and if I didnt like it I could easily return it. Well the sound I was hearing actually got WAY louder and was exactly what I must have been hearing. I reinstalled the foam plug and I traced the tube to the firewall above the throttle pedal and inserted a square chunk of memory foam I had. The sound now is gone and I can actually hear the true sounds of the wonderful LT1 and not some fake rattle that the sound tube was filling the cabin with.

07-11-2018, 04:38 PM	#39
W16camaro2SS Drives: 2016 camaro 2ss Join Date: Jun 2018 Location: Chicago Posts: 3	Has anyones car make this noise before? https://youtu.be/iwVLbkIp-uA

09-03-2020, 10:36 PM	#42
Lifetaken Drives: 2018 SS Camaro 1LE Join Date: May 2019 Location: Maryland Posts: 8	Sorry for reviving this old thread but did you ever get this fixed with the dealer replacing the belts and such, or is this in fact normal? Mine makes this exact noise in this exact RPM range as well.

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