Misfire, Service Stabilitrak, Service Rear Axle

Orlando_ZL1 · 01-26-2021, 03:45 PM

I have a 2019 ZL1 A10 with 3,500 miles and my engine has been misfiring. I took it to my dealership and they have replaced the coils, spark plugs, and injector, but the problem is still not fixed. Has this happened to anyone else before? If so, can you please share the solution?

sr71bb · 01-26-2021, 04:12 PM

YEP. The issue was a broken valve spring on an engine that only had 500 miles on it. Apparently at some point in time, GM's valve spring provider had a bad batch of them The dealer replaced all the valve springs. The stabiltrak error went away also. Fortunately the valve DID NOT drop down into the engine or that would have meant BYE BYE LT1. The SES light began to flash once the misfire was detected so at that point in time I limped it into the dealer.

LiqTenExp · 01-26-2021, 04:57 PM

FYI you will get stabilitrak fault with misfire codes, ignore the stabilitrak fault in the presence of misfires.

Bangkok_ZL1 · 01-27-2021, 06:39 AM

Damn, I hate hearing this. I thought it was not happening on our year, 2019. Please God don't let me be cursed with this BS. I have about 4000 miles on mine now.

Orlando_ZL1 · 01-27-2021, 09:58 PM

Quote:

Originally Posted by sr71bb

YEP. The issue was a broken valve spring on an engine that only had 500 miles on it. Apparently at some point in time, GM's valve spring provider had a bad batch of them The dealer replaced all the valve springs. The stabiltrak error went away also. Fortunately the valve DID NOT drop down into the engine or that would have meant BYE BYE LT1. The SES light began to flash once the misfire was detected so at that point in time I limped it into the dealer.

Once you got to the dealership, was it an easy fix? I suggested the valve spring, but they just keep replacing parts.

Bangkok_ZL1 · 01-28-2021, 10:43 AM

Quote:

Originally Posted by Orlando_ZL1

I have a 2019 ZL1 A10 with 3,500 miles and my engine has been misfiring. I took it to my dealership and they have replaced the coils, spark plugs, and injector, but the problem is still not fixed. Has this happened to anyone else before? If so, can you please share the solution?

By the way, is this while idling or were you driving and it was misfiring. because mine misfires while idling all the time. However, it's worse when the engine warms up. But when I'm driving, it never misses a beat.

Akirasoft · 01-28-2021, 11:40 AM

I had a similar suite of errors during an HPDE after getting headers put on. Turned out to be caused by the harness melting due to it contacting the header...

Orlando_ZL1 · 02-03-2021, 03:39 PM

Quote:

Originally Posted by Bangkok_ZL1

By the way, is this while idling or were you driving and it was misfiring. because mine misfires while idling all the time. However, it's worse when the engine warms up. But when I'm driving, it never misses a beat.

I was misfiring while idling and driving. My dealership still has my car and they continue to replace parts on it.

Scottyz · 02-03-2021, 06:42 PM

Quote:

Originally Posted by Orlando_ZL1

I was misfiring while idling and driving. My dealership still has my car and they continue to replace parts on it.

Tell them again to yank the valve covers for a look at the springs.

Scottyz · 02-03-2021, 06:43 PM

Quote:

Originally Posted by Bangkok_ZL1

By the way, is this while idling or were you driving and it was misfiring. because mine misfires while idling all the time. However, it's worse when the engine warms up. But when I'm driving, it never misses a beat.

If I were you I would check to make sure the plug wires are fully seated. If the wires are fully seated, then I would toss in a new set of plugs.

Orlando_ZL1 · 02-04-2021, 09:31 AM

Quote:

Originally Posted by Scottyz

Tell them again to yank the valve covers for a look at the springs.

I have already suggested that, but they are either ignoring me or they already tried it. They keep ordering additional fuel injectors.

DangerZL1 · 02-04-2021, 10:00 AM

Doesn't the scan tool show which cylinder is misfiring, or is it randomly in all of them?

Bangkok_ZL1 · 02-06-2021, 09:59 PM

Quote:

Originally Posted by Scottyz

If I were you I would check to make sure the plug wires are fully seated. If the wires are fully seated, then I would toss in a new set of plugs.

Thank You, I will check for proper seating and when I get JRE 125 kit (comes with new plugs), the plugs will be changed. I'm still trying to get a bead on a set of headers from Australia since my ZL1 is RHD.

Orlando_ZL1 · 02-08-2021, 12:25 PM

Quote:

Originally Posted by DangerZL1

Doesn't the scan tool show which cylinder is misfiring, or is it randomly in all of them?

It occurs in 3, 5, and 7. They replaced the three fuel injectors. GM told them to replace the fourth fuel injector in the bank.

01-26-2021, 03:45 PM	#1
Orlando_ZL1 Drives: 2019 Chevrolet Camaro ZL1 Join Date: Mar 2020 Location: Orlando, FL Posts: 20	Misfire, Service Stabilitrak, Service Rear Axle I have a 2019 ZL1 A10 with 3,500 miles and my engine has been misfiring. I took it to my dealership and they have replaced the coils, spark plugs, and injector, but the problem is still not fixed. Has this happened to anyone else before? If so, can you please share the solution?

01-26-2021, 04:12 PM	#2
sr71bb Drives: 2019 Camaro Z-28 Join Date: Jul 2010 Location: Dallas Posts: 1,485	MISFIRE cylinder 2 and stabiltrak error YEP. The issue was a broken valve spring on an engine that only had 500 miles on it. Apparently at some point in time, GM's valve spring provider had a bad batch of them The dealer replaced all the valve springs. The stabiltrak error went away also. Fortunately the valve DID NOT drop down into the engine or that would have meant BYE BYE LT1. The SES light began to flash once the misfire was detected so at that point in time I limped it into the dealer. __________________ __________________________________________ 2019 SS 1LE BIG NA A10 Eagles Canyon Raceway 2.7 CCW Below https://youtu.be/c9M5UHDftcA 4-15-23 at SCCA TT U1 Class MEGA Thread on THIS car: https://www.camaro6.com/forums/showthread.php?t=602092 Retired Cars BELOW: 1973 Camaro, 1969 Camaro, 1969 Camaro SS RS 2010 Camaro SS with 1000HP F1R, 2019 ZL1 1LE A10

01-26-2021, 04:57 PM	#3
LiqTenExp Drives: 2017 ZL1 Join Date: Jan 2017 Location: NJ Posts: 905	FYI you will get stabilitrak fault with misfire codes, ignore the stabilitrak fault in the presence of misfires. __________________ 2017 Camaro ZL1 Coupe M6 (847whp Dynojet on 93)

01-27-2021, 06:39 AM	#4
Bangkok_ZL1 ZL1 Believer Drives: 2019 Camaro ZL1 Join Date: Oct 2020 Location: Bangkok, Thailand Posts: 532	Damn, I hate hearing this. I thought it was not happening on our year, 2019. Please God don't let me be cursed with this BS. I have about 4000 miles on mine now.

01-28-2021, 11:40 AM	#7
Akirasoft Drives: 2018 ZL1 1LE, 2015 X3 x35i M-Sport Join Date: Nov 2008 Location: Inverness, IL Posts: 43	I had a similar suite of errors during an HPDE after getting headers put on. Turned out to be caused by the harness melting due to it contacting the header...

02-04-2021, 10:00 AM	#12
DangerZL1 Drives: 2023 Black ZL1 Auto Join Date: Oct 2009 Location: FEMA Region 4 Posts: 2,935	Doesn't the scan tool show which cylinder is misfiring, or is it randomly in all of them?

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