v6 engine loud at first start - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

flags97 · 05-09-2014, 03:07 PM

Hi all,
I am new to this forum I just bought a used 2013 1LT (M6) two weeks ago, love it but when first starting it the engine sounds loud but after 30 seconds it normally goes from about 1200 rpms down to 500 rpms and quiets down. What I need to know is this indicative of the V6 to be so loud (and vibrates) at start-up. Once she is warmed up she sounds normal, my concern is the vibration at startup. Is this typical of this engine.

31B · 05-09-2014, 03:18 PM

Yes this is normal.

its a syn · 05-09-2014, 03:20 PM

It does that to warm up the catalytic converters.

flags97 · 05-09-2014, 03:29 PM

Thanks guys appreciate the quick replies, sold my 98 Corvette and bought this Camaro, and am not looking back!!!!

Camarolover85 · 05-09-2014, 10:36 PM

yep! normal! That's when i get most giddy over my exhaust lol

RobertRS · 05-09-2014, 11:54 PM

Does the 2013 you bought happen to already have an aftermarket muffler kit installed?

WndWarrior · 05-10-2014, 08:09 AM

Yep, normal for our engines...

djcfuzz · 05-10-2014, 09:59 AM

Yep, normal for our engines. Enjoy your Camaro and welcome to camaro5.

KaBoom1701 · 05-10-2014, 10:50 AM

Quote:

Originally Posted by flags97

Hi all,
I am new to this forum I just bought a used 2013 1LT (M6) two weeks ago, love it but when first starting it the engine sounds loud but after 30 seconds it normally goes from about 1200 rpms down to 500 rpms and quiets down. What I need to know is this indicative of the V6 to be so loud (and vibrates) at start-up. Once she is warmed up she sounds normal, my concern is the vibration at startup. Is this typical of this engine.

Awesome isn't it? Make you appreciate modern V6 horse power!

flags97 · 05-11-2014, 09:51 AM

Yes, it is awesome, installed axel back flowmasters yesterday, seems to be smoother at start up. Love. This car!!!

RicanSilverSurfer · 12-27-2015, 04:01 PM

Why it sound loud at cold start and if you attempt after warm up to hold the RPM up to were it goes at cold start the sound is not the same. I have a 2015 V6 Does by any chance the pipe has a flap like the double exhaust?

Twin Town Terror · 12-27-2015, 07:29 PM

Quote:

Originally Posted by RicanSilverSurfer

Why it sound loud at cold start and if you attempt after warm up to hold the RPM up to were it goes at cold start the sound is not the same. I have a 2015 V6 Does by any chance the pipe has a flap like the double exhaust?

The cold start is to warm up the cats. It is a very lean setting to build heat quick. Do not touch the throttle during this process. If you do you stop the process and throw the computer in to a limp mode like state for a little while until it figures out what's going on. The reason the 1200-1500 rpm you hear during the cold start sounds different than when you throttle it up to the same rpm is because of the lean fuel trim. No flap.

ghosted · 12-27-2015, 08:28 PM

Quote:

Originally Posted by Camarolover85

yep! normal! That's when i get most giddy over my exhaust lol

Definitely! I got my 2015 1LS as a certified used car, and found out that it's got Flowmaster 409s installed, and man that thing sounds mean during a cold start.

RicanSilverSurfer · 12-27-2015, 08:31 PM

Thank you for the quick response. I'm a newbie with Camaro V6. I'm trying to get a better sound but investing little by little. You know how it goes with you still have small kids. So far I have received suggestions like a X-pipe and 2 magnaflow bullet mufflers. I may start with the X-pipe first with stock mufflers and eventually the mufflers.

Thanks again.

05-09-2014, 03:07 PM	#1
flags97 Drives: 2013 lt1 camaro Join Date: Apr 2014 Location: Paw Paw, Wv Posts: 36	v6 engine loud at first start Hi all, I am new to this forum I just bought a used 2013 1LT (M6) two weeks ago, love it but when first starting it the engine sounds loud but after 30 seconds it normally goes from about 1200 rpms down to 500 rpms and quiets down. What I need to know is this indicative of the V6 to be so loud (and vibrates) at start-up. Once she is warmed up she sounds normal, my concern is the vibration at startup. Is this typical of this engine.

05-09-2014, 03:20 PM	#3
its a syn B.O.D. 02/16/10 Drives: 2010 SGM Sp. Edition 2017 RS Conver Join Date: Jun 2010 Location: Albia,Iowa Posts: 3,959 View My Garage	It does that to warm up the catalytic converters. __________________

05-10-2014, 09:59 AM	#8
djcfuzz Do somethin fun every day Drives: 2012 45th V6 RS M6 Join Date: Dec 2011 Location: North Port, FL Posts: 1,012 View My Garage	Yep, normal for our engines. Enjoy your Camaro and welcome to camaro5. __________________ My garage: http://www.camaro5.com/forums/camaro...=view&id=16627

05-09-2014, 03:18 PM	#2
31B Drives: 2014 Black 1SS A6 Join Date: Jun 2013 Location: Cameron, NC Posts: 658	Yes this is normal.

05-09-2014, 03:29 PM	#4
flags97 Drives: 2013 lt1 camaro Join Date: Apr 2014 Location: Paw Paw, Wv Posts: 36	Thanks guys appreciate the quick replies, sold my 98 Corvette and bought this Camaro, and am not looking back!!!!

05-09-2014, 10:36 PM	#5
Camarolover85 Account Suspended Drives: 2019 Dodge Challenger Scat Pack Join Date: Apr 2014 Location: Frederick, Colorado Posts: 1,245	yep! normal! That's when i get most giddy over my exhaust lol

05-09-2014, 11:54 PM	#6
RobertRS Drives: 2014 2SS L99 Join Date: Mar 2014 Location: Corpus Christi Texas Posts: 1,320	Does the 2013 you bought happen to already have an aftermarket muffler kit installed?

05-10-2014, 08:09 AM	#7
WndWarrior Drives: 2013 1LT/RS Join Date: Jul 2013 Location: Santa Clarita, Ca. Posts: 119	Yep, normal for our engines...

05-11-2014, 09:51 AM	#10
flags97 Drives: 2013 lt1 camaro Join Date: Apr 2014 Location: Paw Paw, Wv Posts: 36	Yes, it is awesome, installed axel back flowmasters yesterday, seems to be smoother at start up. Love. This car!!!

12-27-2015, 04:01 PM	#11
RicanSilverSurfer Drives: 2015 V6 Silver Ice Metallic Camaro Join Date: Jul 2015 Location: Orlando Posts: 13 View My Garage	Why it sound loud at cold start and if you attempt after warm up to hold the RPM up to were it goes at cold start the sound is not the same. I have a 2015 V6 Does by any chance the pipe has a flap like the double exhaust?

12-27-2015, 08:31 PM	#14
RicanSilverSurfer Drives: 2015 V6 Silver Ice Metallic Camaro Join Date: Jul 2015 Location: Orlando Posts: 13 View My Garage	Thank you for the quick response. I'm a newbie with Camaro V6. I'm trying to get a better sound but investing little by little. You know how it goes with you still have small kids. So far I have received suggestions like a X-pipe and 2 magnaflow bullet mufflers. I may start with the X-pipe first with stock mufflers and eventually the mufflers. Thanks again.