Running rough, Service Stabili Trak Message, CEL Light - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Chf.BurninGlass · 09-01-2016, 02:12 AM

Alright guys I need some help here.

2010 Camaro SS LS3 6sp. Manual - 99,750 miles.

Here is the original issue:

Monday the car was driving fine, later that day while sitting and idling in park the car just in the blink of an eye started running like shit. Rough idle, car shaking like hell, CEL Light came on and started flashing and the Service Stabili Trak message popped up along with all the traction control lights. I drove it home across town and then drove it to get it scanned by Autozone. Came up with a cylinder six misfire and the suggested fix was replaced the fuel injector. I drove it home and posted on another camaro group what was going on and searched the forums. The causes ranged from bad plug or plug wire to a broken valve spring to a bad intake gasket. Below is the step by step process I have followed to find the cause.

1. Unhooked the battery for 15 minutes to see if it would clear the codes. This did not work. Issue remained.

2. Took the cylinder 6 coil, swapped it with the cylinder 1 coil to see if the misfire would follow the coild and it be a bad coil. Issue remained so I took it to have it scanned again. Came up again as a cylinder 6 misfire.

3. I bought new spark plugs, old ones were terrible and looked like they had never been changed. Changed plugs. Started it and it ran great. Backed out of my drive way, drove it 20 feet and it started running like shit again and every message popped back up. So drove it around the block and back home.

4. Thinking maybe it was a bad cylinder 6 plug wire, we swapped the cylinder 6 plug wire with the cylinder 3 plug wire. Issue remained so I drove it back down to Autozone to have it scanned one more time. This time it did not read cylinder 6 misfire, this time it read as a random misfire.

I am at a loss at this point. Some how we changed it from a cylinder 6 misfire to a random misfire. That tells me that its not an injector or a busted valve spring or a bad intake gasket as some people are insisting is what is causing this. If it was any of that i would think no matter what we did it would continue to read as a cylinder 6 misfire and not change to a random misfire after we mess witg it. Am I wrong? Could it still be something along those lines? Should I just replace all the plug wires? Any and all help would be greatly appreciated. Thank you!

redcoats1976 · 09-01-2016, 05:49 AM

im thinking replace plug wires,after 6 years of underhood heat they are probably bad.

JerTM · 09-01-2016, 11:34 AM

You didn't really rule out anything but the coil and plugs. "random misfire" is a code set when the engine realizes there is a misfire but has not had enough data to determine exactly which one is the concern. Simply moving things around isn't going to do you any good unless you can determine which cylinder is missing. A bad plug wire will run the same regardless of which cylinder it's on, but the miss will follow it. Find a scanner that can watch live misfires, the cylinder that has the most is the culprit, you may get some residual "misfires" on other cylinders but it won't be anywhere near the misfire count as the dead misfiring cylinder. It very well could be a valve spring, injector, lifter, or anything related to that cylinder. So until you get the PCM to tell you which cylinder is dead missing, or a live data scanner you're going to be spinning your wheels and replacing parts.

edit: just a thought, but you know which one is cylinder #6, correct? (third one back on the passenger bank)

Chf.BurninGlass · 09-01-2016, 07:49 PM

Yes I know that the third one back on the passenger is cylinder 6. That was where the original scan said the misfire was. Only after we changed the spark plugs and moved a plug wire did it go from cylinder 6 to random. I replaced the plug wires today and the issue remained. A buddy of mine said I could bring it to his shop on Monday and he has one of those expensive snap on scanners that will monitor the car while running. Hopefully then I will be able to pin point the issue. If it is something as bad as a lifter or valve spring what kind of damage am I looking at?

JerTM · 09-01-2016, 09:27 PM

Hopefully it's a spring, that can be easily fixed. A lifter, not so much, you'll be removing a head.

Chf.BurninGlass · 09-01-2016, 10:02 PM

Well I appreciate the input. All I can do at this point is wait until Monday and hook her up. I guess an upside to this is if it is a spring and I need to tear it down, I'll be getting my upgraded Springs, cam and a tune. I'll definitely post on here Monday what we figure out.

JusticePete · 09-02-2016, 08:37 AM

Fredryberg · 07-03-2017, 11:39 AM

What was it?

TheFlyingBananaSS · 07-03-2017, 11:52 AM

Quote:

Originally Posted by Fredryberg

What was it?

Bronchitis

frankwjr · 07-03-2017, 06:09 PM

lol that old thread revival...bet anything it was the plug wires...

Fredryberg · 07-04-2017, 04:30 PM

Only reason I started it back up is cause I am having same problem. But it stays misfire on cylinder 8. I'm dumbfounded

sixty9fordkiller · 07-05-2017, 06:42 PM

Quote:

Originally Posted by Fredryberg

Only reason I started it back up is cause I am having same problem. But it stays misfire on cylinder 8. I'm dumbfounded

Were you the member that had a broken pushrod?

Fredryberg · 07-05-2017, 07:09 PM

Yes I am gonna be putting a camera in the hole and sticking the pushrod back in soon. Picked it up from stealership today.

sixty9fordkiller · 07-06-2017, 02:28 PM

damn man. hopefully it was just a bad pushrod. Ive never seen a pushrod bend/break without some type of binding/interference that caused it. What does the rocker and spring look like?

09-01-2016, 02:12 AM	#1
Chf.BurninGlass Drives: 2010 Chevrolet Camaro 2SS Join Date: Jun 2016 Location: Indiana Posts: 18	Running rough, Service Stabili Trak Message, CEL Light Alright guys I need some help here. 2010 Camaro SS LS3 6sp. Manual - 99,750 miles. Here is the original issue: Monday the car was driving fine, later that day while sitting and idling in park the car just in the blink of an eye started running like shit. Rough idle, car shaking like hell, CEL Light came on and started flashing and the Service Stabili Trak message popped up along with all the traction control lights. I drove it home across town and then drove it to get it scanned by Autozone. Came up with a cylinder six misfire and the suggested fix was replaced the fuel injector. I drove it home and posted on another camaro group what was going on and searched the forums. The causes ranged from bad plug or plug wire to a broken valve spring to a bad intake gasket. Below is the step by step process I have followed to find the cause. 1. Unhooked the battery for 15 minutes to see if it would clear the codes. This did not work. Issue remained. 2. Took the cylinder 6 coil, swapped it with the cylinder 1 coil to see if the misfire would follow the coild and it be a bad coil. Issue remained so I took it to have it scanned again. Came up again as a cylinder 6 misfire. 3. I bought new spark plugs, old ones were terrible and looked like they had never been changed. Changed plugs. Started it and it ran great. Backed out of my drive way, drove it 20 feet and it started running like shit again and every message popped back up. So drove it around the block and back home. 4. Thinking maybe it was a bad cylinder 6 plug wire, we swapped the cylinder 6 plug wire with the cylinder 3 plug wire. Issue remained so I drove it back down to Autozone to have it scanned one more time. This time it did not read cylinder 6 misfire, this time it read as a random misfire. I am at a loss at this point. Some how we changed it from a cylinder 6 misfire to a random misfire. That tells me that its not an injector or a busted valve spring or a bad intake gasket as some people are insisting is what is causing this. If it was any of that i would think no matter what we did it would continue to read as a cylinder 6 misfire and not change to a random misfire after we mess witg it. Am I wrong? Could it still be something along those lines? Should I just replace all the plug wires? Any and all help would be greatly appreciated. Thank you!

07-03-2017, 06:09 PM	#10
frankwjr Drives: 2010 SS 2SS M6 Join Date: Aug 2016 Location: Smithsburg, Md. Posts: 2,445	lol that old thread revival...bet anything it was the plug wires... __________________ 2010 SS 2SS M6 - Tune by RDP dynoSteve!(Woot) - Daily Driver - *150K!* - All work by me...

07-06-2017, 02:28 PM	#14
sixty9fordkiller Donkey Dick Cam Camaro Drives: 2010 2SS/RS LS3 M6 Join Date: Oct 2009 Location: Los Angeles, CA Posts: 1,998	damn man. hopefully it was just a bad pushrod. Ive never seen a pushrod bend/break without some type of binding/interference that caused it. What does the rocker and spring look like? __________________ Bone Stock

09-01-2016, 05:49 AM	#2
redcoats1976 Drives: LT W/2LT,blue metallic Join Date: Jul 2016 Location: central florida Posts: 5,042	im thinking replace plug wires,after 6 years of underhood heat they are probably bad.

09-01-2016, 11:34 AM	#3
JerTM Drives: 2011 2SS/RS M6 Join Date: Oct 2015 Location: Utah Posts: 1,940	You didn't really rule out anything but the coil and plugs. "random misfire" is a code set when the engine realizes there is a misfire but has not had enough data to determine exactly which one is the concern. Simply moving things around isn't going to do you any good unless you can determine which cylinder is missing. A bad plug wire will run the same regardless of which cylinder it's on, but the miss will follow it. Find a scanner that can watch live misfires, the cylinder that has the most is the culprit, you may get some residual "misfires" on other cylinders but it won't be anywhere near the misfire count as the dead misfiring cylinder. It very well could be a valve spring, injector, lifter, or anything related to that cylinder. So until you get the PCM to tell you which cylinder is dead missing, or a live data scanner you're going to be spinning your wheels and replacing parts. edit: just a thought, but you know which one is cylinder #6, correct? (third one back on the passenger bank)

09-01-2016, 07:49 PM	#4
Chf.BurninGlass Drives: 2010 Chevrolet Camaro 2SS Join Date: Jun 2016 Location: Indiana Posts: 18	Yes I know that the third one back on the passenger is cylinder 6. That was where the original scan said the misfire was. Only after we changed the spark plugs and moved a plug wire did it go from cylinder 6 to random. I replaced the plug wires today and the issue remained. A buddy of mine said I could bring it to his shop on Monday and he has one of those expensive snap on scanners that will monitor the car while running. Hopefully then I will be able to pin point the issue. If it is something as bad as a lifter or valve spring what kind of damage am I looking at?

09-01-2016, 09:27 PM	#5
JerTM Drives: 2011 2SS/RS M6 Join Date: Oct 2015 Location: Utah Posts: 1,940	Hopefully it's a spring, that can be easily fixed. A lifter, not so much, you'll be removing a head.

09-01-2016, 10:02 PM	#6
Chf.BurninGlass Drives: 2010 Chevrolet Camaro 2SS Join Date: Jun 2016 Location: Indiana Posts: 18	Well I appreciate the input. All I can do at this point is wait until Monday and hook her up. I guess an upside to this is if it is a spring and I need to tear it down, I'll be getting my upgraded Springs, cam and a tune. I'll definitely post on here Monday what we figure out.

09-02-2016, 08:37 AM	#7
JusticePete Drives: Camaro Justice Join Date: Jun 2007 Location: Virginia Posts: 20,171

07-03-2017, 11:39 AM	#8
Fredryberg Drives: 2010 2ss camaro Join Date: Aug 2016 Location: H-town Posts: 35	What was it?

07-04-2017, 04:30 PM	#11
Fredryberg Drives: 2010 2ss camaro Join Date: Aug 2016 Location: H-town Posts: 35	Only reason I started it back up is cause I am having same problem. But it stays misfire on cylinder 8. I'm dumbfounded

07-05-2017, 07:09 PM	#13
Fredryberg Drives: 2010 2ss camaro Join Date: Aug 2016 Location: H-town Posts: 35	Yes I am gonna be putting a camera in the hole and sticking the pushrod back in soon. Picked it up from stealership today.