Check engine flashing, service stabilitrack, rough running with tick - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

cypressh · 04-07-2014, 09:16 AM

Hello all,

I have had my M6 ls3 2011 for 6 months now it is Comp Cammed, spectre CAI, Airraid Throttle body spacer.

It has run fine the whole time till this morning. it ran fine till i turned a sharp corner heading to work than all of a sudden loud tick/knock and wicked missfire as well as the CEL flashing and service stabilitrack on. it did that for 1/2 a kilometer before i got to work. through my scanner on it and no DTCS.

anyone help out with anything that woiuld help lead to diagnosis

Spartan01 · 04-07-2014, 09:30 AM

Let me make sure I understand correctly-
The CEL and Service Stabilitrack lights came on, but it did not throw a Reduced Power at you, and it only happened for 1/2 a km and now has gone away?

cypressh · 04-07-2014, 09:49 AM

It reduced major power almost as if its missfiring hard... did for 1/2km b3fo4e I made it to work and shut it down

Destructo09 · 04-07-2014, 09:57 AM

That doesn't sound good. Usually with a flashing CEL you should stop and shut it down immediately. I'd have been calling a tow truck and not tried to limp it anywhere.

Since you have a cam I would likely assume something like a broken valve spring or something of that nature. Most likely something in the valve train at least.

Either way it sounds pretty bad, are you sure it didn't lose oil pressure? Did you happen to check your oil pressure gauge while this was happening?

Probably at this point I would see if it's possible to connect a mechanical pressure gauge to it and pull the ignition fuse to it won't start and turn it over to check for oil pressure.

I'm sure somebody here can advise on which fuses to pull, or you could just disconnect the plug wires. If it has no oil pressure you certainly don't want to fire the thing up.

cypressh · 04-07-2014, 10:03 AM

Oil pressure and temp were good through out the time, no smoke from what I could see

Destructo09 · 04-07-2014, 10:08 AM

That's good then. Odd there wasn't a code stored.

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cypressh · 04-07-2014, 10:55 AM

what i dont understand is why is the service stabilitrak lights on aswell?

Mean Green Z28 · 04-07-2014, 11:08 AM

Get your fueling checked out. You're probably running a bit rich and the blm's were so low that your engine actually cut off due to insufficient fuel and then restarted; causing you to see those flashing lights and messages. You will not see any codes, 'cos the car is only restarting as if you push-started it.

Same thing happened to me. My car was running really rich and I hooked up a bluetooth OBD-II scanner and kept an eye on my blm's; in traffic or at a stop I'd see the blm's start dropping to about -20% and then the engine would stutter and the blm's would reset to 0% and the cycle will continue until I get going. It's when the blm's were in the -'s that I had the engine cutoff and start up again and cause people riding with me to think I didn't know how to drive a stick ... lol ... it was the same while driving on the highway in high gear at about 60mph when the RPM's were really low. The computer kept pulling fuel until it stalls out and then reset when it sees the car stall. Had my friend lower the numbers on the MAF table a by 5% in the lower ranges and it fixed it ... now I can idle all day long and have no issues on light throttle on the highway. ... I still need to get the car tuned though, just didn't have time for a full tune.

1LE801 · 04-07-2014, 11:12 AM

2SS2010 · 04-07-2014, 11:23 AM

broken valve spring?

cypressh · 04-07-2014, 11:24 AM

Mean Green Z28 the car isnt stuttering and the driveability is poor but its not bucking like Im assuming you are trying to explain. Its Misfiring bad, and accompanying that misfire is a loud ticking coming from what sounds like in one of the heads. No smoke from the tail pipes and no metal shavings in the oil from what i can tell from the dipstick

Mean Green Z28 · 04-07-2014, 11:25 AM

Also it did it only when warm outside. Colder air helped the rich condition during the winter months so I let it be. As soon as it got a bit warm, it came back and I was having none of that shit again!

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Destructo09 · 04-07-2014, 11:27 AM

The noise makes it feel like a possible valve spring. Especially seeing as your cammed.

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cypressh · 04-07-2014, 11:47 AM

it finally threw a code for misfire in cylinder two and the clacking is making my boss think its a worn through rocker........ Im going to pull the spark plugs tonight and check them and replace while im in there. if that stops the misfire I'll be alright, If the clicking is still there im pulling the valve cover and gonna hope for the best.

04-07-2014, 09:16 AM	#1
cypressh Canadian Drives: 2011 Camaro 2SS/RS Join Date: Dec 2013 Location: Lumsden Saskatchewan Posts: 406	Check engine flashing, service stabilitrack, rough running with tick Hello all, I have had my M6 ls3 2011 for 6 months now it is Comp Cammed, spectre CAI, Airraid Throttle body spacer. It has run fine the whole time till this morning. it ran fine till i turned a sharp corner heading to work than all of a sudden loud tick/knock and wicked missfire as well as the CEL flashing and service stabilitrack on. it did that for 1/2 a kilometer before i got to work. through my scanner on it and no DTCS. anyone help out with anything that woiuld help lead to diagnosis

04-07-2014, 09:30 AM	#2
Spartan01 Drives: Evil Eva, 2010 2SS LS3 Join Date: Aug 2013 Location: Falls Church, Virginia Posts: 3,600	Let me make sure I understand correctly- The CEL and Service Stabilitrack lights came on, but it did not throw a Reduced Power at you, and it only happened for 1/2 a km and now has gone away? __________________ "You simply cannot trust quotes found on the internet." -Abraham Lincoln

04-07-2014, 09:57 AM	#4
Destructo09 Drives: 2010 CGM Camaro 2SS/LS3 Join Date: Oct 2013 Location: Raleigh-Durham Posts: 1,409	That doesn't sound good. Usually with a flashing CEL you should stop and shut it down immediately. I'd have been calling a tow truck and not tried to limp it anywhere. Since you have a cam I would likely assume something like a broken valve spring or something of that nature. Most likely something in the valve train at least. Either way it sounds pretty bad, are you sure it didn't lose oil pressure? Did you happen to check your oil pressure gauge while this was happening? Probably at this point I would see if it's possible to connect a mechanical pressure gauge to it and pull the ignition fuse to it won't start and turn it over to check for oil pressure. I'm sure somebody here can advise on which fuses to pull, or you could just disconnect the plug wires. If it has no oil pressure you certainly don't want to fire the thing up. __________________ 2010 2SS BMR 1" Springs Koni Orange struts/shocks 1LE rear sway bar SRP Racing Pedals Hurst Billet short shifter Square tire/wheel setup Elite Engineering Catch Can Stainless Power longtubes/highflow cats K&N Typhoon CAI RPM Motorsports of Garner, NC dyno tune (421 RWHP)

04-07-2014, 10:08 AM	#6
Destructo09 Drives: 2010 CGM Camaro 2SS/LS3 Join Date: Oct 2013 Location: Raleigh-Durham Posts: 1,409	That's good then. Odd there wasn't a code stored. Sent from my XT1049 using Tapatalk __________________ 2010 2SS BMR 1" Springs Koni Orange struts/shocks 1LE rear sway bar SRP Racing Pedals Hurst Billet short shifter Square tire/wheel setup Elite Engineering Catch Can Stainless Power longtubes/highflow cats K&N Typhoon CAI RPM Motorsports of Garner, NC dyno tune (421 RWHP)

04-07-2014, 11:12 AM	#9
1LE801 "Lohla" Drives: 2016 1SS A8 :"Lohla" Join Date: Dec 2013 Location: Utah Posts: 711 View My Garage	__________________ OG Trans and Diff but all else is upgraded. Twins bring wins ;-)

04-07-2014, 09:49 AM	#3
cypressh Canadian Drives: 2011 Camaro 2SS/RS Join Date: Dec 2013 Location: Lumsden Saskatchewan Posts: 406	It reduced major power almost as if its missfiring hard... did for 1/2km b3fo4e I made it to work and shut it down

04-07-2014, 10:03 AM	#5
cypressh Canadian Drives: 2011 Camaro 2SS/RS Join Date: Dec 2013 Location: Lumsden Saskatchewan Posts: 406	Oil pressure and temp were good through out the time, no smoke from what I could see

04-07-2014, 10:55 AM	#7
cypressh Canadian Drives: 2011 Camaro 2SS/RS Join Date: Dec 2013 Location: Lumsden Saskatchewan Posts: 406	what i dont understand is why is the service stabilitrak lights on aswell?

04-07-2014, 11:08 AM	#8
Mean Green Z28 Drives: 2010 2SS Join Date: Aug 2013 Location: Annapolis, MD Posts: 941 View My Garage	Get your fueling checked out. You're probably running a bit rich and the blm's were so low that your engine actually cut off due to insufficient fuel and then restarted; causing you to see those flashing lights and messages. You will not see any codes, 'cos the car is only restarting as if you push-started it. Same thing happened to me. My car was running really rich and I hooked up a bluetooth OBD-II scanner and kept an eye on my blm's; in traffic or at a stop I'd see the blm's start dropping to about -20% and then the engine would stutter and the blm's would reset to 0% and the cycle will continue until I get going. It's when the blm's were in the -'s that I had the engine cutoff and start up again and cause people riding with me to think I didn't know how to drive a stick ... lol ... it was the same while driving on the highway in high gear at about 60mph when the RPM's were really low. The computer kept pulling fuel until it stalls out and then reset when it sees the car stall. Had my friend lower the numbers on the MAF table a by 5% in the lower ranges and it fixed it ... now I can idle all day long and have no issues on light throttle on the highway. ... I still need to get the car tuned though, just didn't have time for a full tune.

04-07-2014, 11:23 AM	#10
2SS2010 Drives: 2010 2 SS Join Date: Oct 2013 Location: Georgia Posts: 594	broken valve spring?

04-07-2014, 11:24 AM	#11
cypressh Canadian Drives: 2011 Camaro 2SS/RS Join Date: Dec 2013 Location: Lumsden Saskatchewan Posts: 406	Mean Green Z28 the car isnt stuttering and the driveability is poor but its not bucking like Im assuming you are trying to explain. Its Misfiring bad, and accompanying that misfire is a loud ticking coming from what sounds like in one of the heads. No smoke from the tail pipes and no metal shavings in the oil from what i can tell from the dipstick

04-07-2014, 11:25 AM	#12
Mean Green Z28 Drives: 2010 2SS Join Date: Aug 2013 Location: Annapolis, MD Posts: 941 View My Garage	Also it did it only when warm outside. Colder air helped the rich condition during the winter months so I let it be. As soon as it got a bit warm, it came back and I was having none of that shit again! Sent from my SAMSUNG-SGH-I747 using Tapatalk __________________ 2010 2SS - CAI Intake, ADM Scoop, RotoFab Washer relo. LT Headers and off-road pipes, X-pipe, Muffler Deletes, ZL1 Spoiler, Technostalgia Tail-lights '98 T/A (Sold) - Forged 6.0ltr, MS3, P&P'd Heads/Valves, 90MM FAST/TB, Headers, 3" Y-pipe, 4" Mufflex Catback. Koni Adjustables w/GC coilovers (550/175), Strano Sway Bars '94 Z28 (Sold) ... LS1 swap (basically same setup as the T/A), TH350/3500 stall ... swapped it all into the T/A -- >> Some of my Projects My Fquick Page

04-07-2014, 11:27 AM	#13
Destructo09 Drives: 2010 CGM Camaro 2SS/LS3 Join Date: Oct 2013 Location: Raleigh-Durham Posts: 1,409	The noise makes it feel like a possible valve spring. Especially seeing as your cammed. Sent from my XT1049 using Tapatalk __________________ 2010 2SS BMR 1" Springs Koni Orange struts/shocks 1LE rear sway bar SRP Racing Pedals Hurst Billet short shifter Square tire/wheel setup Elite Engineering Catch Can Stainless Power longtubes/highflow cats K&N Typhoon CAI RPM Motorsports of Garner, NC dyno tune (421 RWHP)

04-07-2014, 11:47 AM	#14
cypressh Canadian Drives: 2011 Camaro 2SS/RS Join Date: Dec 2013 Location: Lumsden Saskatchewan Posts: 406	it finally threw a code for misfire in cylinder two and the clacking is making my boss think its a worn through rocker........ Im going to pull the spark plugs tonight and check them and replace while im in there. if that stops the misfire I'll be alright, If the clicking is still there im pulling the valve cover and gonna hope for the best.