Not as loud after new engine....

buckyss · 10-24-2022, 01:39 PM

2019 Camaro 2SS
Bone stock
New engine and transmission.

It is not nearly as loud as it was prior to the engine blowing up. It hardly ever pops or crackles on over runs when it was almost embarrassing how often it did it before..any possible reason for this? I run it mostly in sport mode, and yes the actuators are open. Just wondering what might be a reason for this. Last week I drive it, putting away for winter this coming weekend.

I have 420 miles on a new engine...still breaking it in. any help appreciated...any criticism is not necessary.

Thanks.

LT1ornothing · 10-24-2022, 02:21 PM

Quote:

Originally Posted by buckyss

2019 Camaro 2SS
Bone stock
New engine and transmission.

It is not nearly as loud as it was prior to the engine blowing up. It hardly ever pops or crackles on over runs when it was almost embarrassing how often it did it before..any possible reason for this? I run it mostly in sport mode, and yes the actuators are open. Just wondering what might be a reason for this. Last week I drive it, putting away for winter this coming weekend.

I have 420 miles on a new engine...still breaking it in. any help appreciated...any criticism is not necessary.

Thanks.

I don't have an answer for why it crackles and pops less with the new motor. The good news is that there are tuners available with tunes that will crackle and pop as much as your heart desires.

raptor5244 · 10-24-2022, 06:31 PM

Supposedly GM dialed up the crackles and pops in the tune at some point. Maybe you have an earlier version of the tune?

buckyss · 10-24-2022, 06:43 PM

are you saying I can take to dealer and explain it and see if there is a different tune for it??? I never heard of this...

2SS Capt · 10-24-2022, 08:10 PM

Quote:

Originally Posted by buckyss

are you saying I can take to dealer and explain it and see if there is a different tune for it??? I never heard of this...

They changed the tune in 2019 to give it a lot more snap, crackle & pop... I agree, your "new" engine, may have the pre-2019 tune...

Jeb114 · 10-25-2022, 06:40 AM

You do realize popping and cracking mean the engine is not running right.

Grimlock212 · 10-25-2022, 07:05 AM

Quote:

Originally Posted by Jeb114

You do realize popping and cracking mean the engine is not running right.

You do realize that Chevy programs popping and crackling into the tune, right? Otherwise, my engine is running *REALLY* poorly!

LT1ornothing · 10-25-2022, 07:07 AM

Quote:

Originally Posted by Jeb114

You do realize popping and cracking mean the engine is not running right.

Incorrect. The popping and crackling is an effect triggered after stabbing the throttle and abruptly letting off while in gear. The result is that an unburnt fuel mixture post combustion ends up igniting within the exhaust, thus creating said popping and crackling. It is a unique "feature" GM chose to use and can either be eliminated or exaggerated by adjusting the tune.

Hotwheeltat · 10-25-2022, 07:57 AM

Unless the ECM was recalibrated after the engine was replaced the engine itself has no effect on the snap,crackle,pops assuming it was replaced with an OE engine. Check your RO form the dealer if that is where work was performed and see if an ECM recalibration is listed.

buckyss · 10-25-2022, 10:58 AM

any information I can share with my Chevy dealer as to what the tune is? Numbers, codes etc? They have never heard of such a thing. Thanks for your help and input.

Briland_1LE · 10-25-2022, 11:07 AM

Quote:

Originally Posted by buckyss

2019 Camaro 2SS
Bone stock
New engine and transmission.

It is not nearly as loud as it was prior to the engine blowing up. It hardly ever pops or crackles on over runs when it was almost embarrassing how often it did it before..any possible reason for this? I run it mostly in sport mode, and yes the actuators are open. Just wondering what might be a reason for this. Last week I drive it, putting away for winter this coming weekend.

I have 420 miles on a new engine...still breaking it in. any help appreciated...any criticism is not necessary.

Thanks.

Could it have to do with the engine being super low miles and needing to break in before that portion of the tune is activated?

Zr8000 · 10-25-2022, 11:14 AM

Quote:

Originally Posted by buckyss

2019 Camaro 2SS
Bone stock
New engine and transmission.

It is not nearly as loud as it was prior to the engine blowing up. It hardly ever pops or crackles on over runs when it was almost embarrassing how often it did it before..any possible reason for this? I run it mostly in sport mode, and yes the actuators are open. Just wondering what might be a reason for this. Last week I drive it, putting away for winter this coming weekend.

I have 420 miles on a new engine...still breaking it in. any help appreciated...any criticism is not necessary.

Thanks.

Whoever installed your engine probably did you a favor and got rid of the sound tube that isn’t needed. That would make it quieter in the car.

Zr8000 · 10-25-2022, 11:16 AM

Quote:

Originally Posted by JamesNoBrakes

I swear that after I got my rear-diff re-calibrated last year the car popped more under these conditions, a 2018. But IDK. Some of this is getting way out of control with the popping, to the point of just being dumb. I saw an RS3 the other day that was just annoying.

Diff changes would change the load on the engine so that could cause it to pop differently from when it was stock.

ctrlz · 10-25-2022, 11:31 AM

Quote:

Originally Posted by 2SS Capt

They changed the tune in 2019 to give it a lot more snap, crackle & pop... I agree, your "new" engine, may have the pre-2019 tune...

I favor this explanation.
It is all about unburned fuel igniting in the exhaust. probably going to be hard to get a dealer to give you the exact tune you want to get this back.

My bias, assuming the new engine is running fine, would be to NOT mess with it.

10-24-2022, 01:39 PM	#1
buckyss Drives: '19 Camaro SS Join Date: Dec 2019 Location: Wi Posts: 12	Not as loud after new engine.... 2019 Camaro 2SS Bone stock New engine and transmission. It is not nearly as loud as it was prior to the engine blowing up. It hardly ever pops or crackles on over runs when it was almost embarrassing how often it did it before..any possible reason for this? I run it mostly in sport mode, and yes the actuators are open. Just wondering what might be a reason for this. Last week I drive it, putting away for winter this coming weekend. I have 420 miles on a new engine...still breaking it in. any help appreciated...any criticism is not necessary. Thanks.

10-24-2022, 06:31 PM	#3
raptor5244 Drives: 2022 CT4-V Blackwing Join Date: Sep 2013 Location: Florida Posts: 2,723	Supposedly GM dialed up the crackles and pops in the tune at some point. Maybe you have an earlier version of the tune? __________________ 2002 Corvette Z06 - Black - Sold 2013 Camaro SS 1LE - Black - M6 - Sold 2016 Camaro SS - Mosaic Black - A8 - Sold 2017 C7 Stingray - M7 Coupe - Sold 2019 C7 Grand Sport M7 Vert - Sold 2021 Camaro ZL1 - Black - A10 - Sold 2019 Tesla Model 3 2022 CT4-V Blackwing - M6

10-24-2022, 06:43 PM	#4
buckyss Drives: '19 Camaro SS Join Date: Dec 2019 Location: Wi Posts: 12	are you saying I can take to dealer and explain it and see if there is a different tune for it??? I never heard of this...

10-25-2022, 06:40 AM	#6
Jeb114 Drives: 2021 300 Join Date: Jan 2015 Location: New Jersey Posts: 968	You do realize popping and cracking mean the engine is not running right.

10-25-2022, 07:57 AM	#9
Hotwheeltat Drives: 2020 Camaro SS 1LE Join Date: Aug 2020 Location: Florida Posts: 107	Unless the ECM was recalibrated after the engine was replaced the engine itself has no effect on the snap,crackle,pops assuming it was replaced with an OE engine. Check your RO form the dealer if that is where work was performed and see if an ECM recalibration is listed.

10-25-2022, 10:58 AM	#10
buckyss Drives: '19 Camaro SS Join Date: Dec 2019 Location: Wi Posts: 12	any information I can share with my Chevy dealer as to what the tune is? Numbers, codes etc? They have never heard of such a thing. Thanks for your help and input.

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