P0308 stabilitrac crapped itself - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Fredryberg · 07-03-2017, 01:56 PM

Going in to work today my car was running great passed up several cars on freeway then boom. Service stabilitrac came on. This happened once and was a loose spark plug wire. So checked plug wires they were all good and tight. Hooked up my sct tuner and saw p0308. Swapped wires from number 8 to 6. Still same problem. Should I just replace plug and swap coil and see what happens?
2010 camaro ss. 68000 miles ls3

Rock-It Man · 07-03-2017, 05:42 PM

Loose plug wire? Telling us what you've modified on the car would be helpful. Plug wires don't get loose by themselves.

Fredryberg · 07-03-2017, 06:29 PM

Sorry stainless works headers and tune by dyno Steve. Car has ran flawlessly for 10,000 miles

Fredryberg · 07-04-2017, 02:16 PM

So far I have changed out plug. Plug was fouled with gas. Switched coils, and swapped wires around still have misfire on cylinder 8. Am I prob right in guessing it's a broken valve spring?

Jazzzed · 07-04-2017, 04:52 PM

Maybe the injector is stuck open.

Fredryberg · 07-04-2017, 05:13 PM

Is that a common problem? How could I test that?

Leo72793 · 07-04-2017, 06:56 PM

Quote:

Originally Posted by Fredryberg

Is that a common problem? How could I test that?

move the injector to another cylinder is one way. Also using a screw driver to hear it tick is another. easiest ways.

Fredryberg · 07-04-2017, 07:49 PM

Swapped injectors still show cylinder 8 misfiring. Any other suggestions? It idles fine gf says it smells like raw fuel from behind the car also worst than normally but I don't run cats either.

CamaroFred · 07-04-2017, 07:58 PM

Quote:

Originally Posted by Fredryberg

Swapped injectors still show cylinder 8 misfiring. Any other suggestions? It idles fine gf says it smells like raw fuel from behind the car also worst than normally but I don't run cats either.

Put your overalls on and pull the valve cover.
It isn't rocket science.

Fredryberg · 07-04-2017, 09:27 PM

Yes Fred. I'll do it tomorrow.

Fredryberg · 07-05-2017, 08:30 AM

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Pulled off valve cover and found

frankwjr · 07-05-2017, 08:46 AM

That is F'D!...more info...car mileage....any other mod's...original owner? I bought my 2010 at 90k on the clock...car had new '14 LS3 installed at 70k by dealer...one of the very first mods I did was the pushrod/spring/rocker bushing upgrade...why...all my research showed the biggest potential for failure was the valve train on the LS3...

Is your valve train still completely stock? I would be looking at the spring and rocker on that cyl...and I wonder what the lifter/cam lobe looks like...

good luck and keep us posted!! peace out...

Fredryberg · 07-05-2017, 08:55 AM

2010 camaro 68000 miles headers, full exhaust, tune. Yes valve train stock. Spring still appears to be in good shape this is what makes rocker arm go up and down I am guessing. It is the pushrod that is broken. What are my options?

Fredryberg · 07-05-2017, 01:48 PM

Got rest of pushrod out what would happen if I install a new one. The ls1 boards have told people to do so. Kinda winging it here without any advice. Making me wish I had a evo again

07-03-2017, 01:56 PM	#1
Fredryberg Drives: 2010 2ss camaro Join Date: Aug 2016 Location: H-town Posts: 35	P0308 stabilitrac crapped itself Going in to work today my car was running great passed up several cars on freeway then boom. Service stabilitrac came on. This happened once and was a loose spark plug wire. So checked plug wires they were all good and tight. Hooked up my sct tuner and saw p0308. Swapped wires from number 8 to 6. Still same problem. Should I just replace plug and swap coil and see what happens? 2010 camaro ss. 68000 miles ls3 Last edited by Fredryberg; 07-03-2017 at 03:06 PM. Reason: Autocorrect

07-03-2017, 06:29 PM	#3
Fredryberg Drives: 2010 2ss camaro Join Date: Aug 2016 Location: H-town Posts: 35	Sorry stainless works headers and tune by dyno Steve. Car has ran flawlessly for 10,000 miles Last edited by Fredryberg; 07-03-2017 at 06:55 PM.

07-05-2017, 08:46 AM	#12
frankwjr Drives: 2010 SS 2SS M6 Join Date: Aug 2016 Location: Smithsburg, Md. Posts: 2,445	That is F'D!...more info...car mileage....any other mod's...original owner? I bought my 2010 at 90k on the clock...car had new '14 LS3 installed at 70k by dealer...one of the very first mods I did was the pushrod/spring/rocker bushing upgrade...why...all my research showed the biggest potential for failure was the valve train on the LS3... Is your valve train still completely stock? I would be looking at the spring and rocker on that cyl...and I wonder what the lifter/cam lobe looks like... good luck and keep us posted!! peace out... __________________ 2010 SS 2SS M6 - Tune by RDP dynoSteve!(Woot) - Daily Driver - *150K!* - All work by me...

07-05-2017, 08:55 AM	#13
Fredryberg Drives: 2010 2ss camaro Join Date: Aug 2016 Location: H-town Posts: 35	2010 camaro 68000 miles headers, full exhaust, tune. Yes valve train stock. Spring still appears to be in good shape this is what makes rocker arm go up and down I am guessing. It is the pushrod that is broken. What are my options? Last edited by Fredryberg; 07-05-2017 at 09:44 AM.

07-03-2017, 05:42 PM	#2
Rock-It Man 376 cubic inches of fun Drives: 2023 Camaro ZL1 A10 Join Date: Jul 2010 Location: MA Posts: 4,033 View My Garage	Loose plug wire? Telling us what you've modified on the car would be helpful. Plug wires don't get loose by themselves.

07-04-2017, 02:16 PM	#4
Fredryberg Drives: 2010 2ss camaro Join Date: Aug 2016 Location: H-town Posts: 35	So far I have changed out plug. Plug was fouled with gas. Switched coils, and swapped wires around still have misfire on cylinder 8. Am I prob right in guessing it's a broken valve spring?

07-04-2017, 04:52 PM	#5
Jazzzed Drives: 2015 Camaro LT Join Date: Sep 2016 Location: Fox Lake, IL Posts: 393	Maybe the injector is stuck open.

07-04-2017, 05:13 PM	#6
Fredryberg Drives: 2010 2ss camaro Join Date: Aug 2016 Location: H-town Posts: 35	Is that a common problem? How could I test that?

07-04-2017, 07:49 PM	#8
Fredryberg Drives: 2010 2ss camaro Join Date: Aug 2016 Location: H-town Posts: 35	Swapped injectors still show cylinder 8 misfiring. Any other suggestions? It idles fine gf says it smells like raw fuel from behind the car also worst than normally but I don't run cats either.

07-04-2017, 09:27 PM	#10
Fredryberg Drives: 2010 2ss camaro Join Date: Aug 2016 Location: H-town Posts: 35	Yes Fred. I'll do it tomorrow.

07-05-2017, 08:30 AM	#11
Fredryberg Drives: 2010 2ss camaro Join Date: Aug 2016 Location: H-town Posts: 35	Pulled off valve cover and found

07-05-2017, 01:48 PM	#14
Fredryberg Drives: 2010 2ss camaro Join Date: Aug 2016 Location: H-town Posts: 35	Got rest of pushrod out what would happen if I install a new one. The ls1 boards have told people to do so. Kinda winging it here without any advice. Making me wish I had a evo again