CEL and weird rough idle - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Jchuba03 · 06-01-2015, 02:54 PM

Hey guys, been a while since i've posted, but something weird happened yesterday and it had me a little concerned.

I had been away on vacation for a week, so the car hadn't ran during that time. The first time I started it up after i got home, everything sounded fine, so i threw it in drive and started down the road. After about 50 feet or so, my CEL flashed on and it felt like the valves/cylinders were out of sync(maybe a misfire? I'm not very technical when it comes to engine internals

). Anyway, when i would hit the gas, the car felt as if ti were jumping or hopping. So i shut the car off, turned it back on, and it has been driving perfectly since.

Is this something I should be concerned about? Or just a side effect of not driving it for a week?

Thanks for the help!

VASCAR2 · 06-01-2015, 06:19 PM

Sounds like the engine was not firing on every cylinder. If the CEL flashed the dealer or mechanic can check to see what code was thrown. If it were me I'd go to autozone and see if they would put their code reader on it. You may have a coil going bad but with the past history of timing chain tensioners issues I'd get it checked. I noticed you have a 2011 so not knowing how many miles it's hard to say what might be the cause.

Jchuba03 · 06-02-2015, 06:43 AM

Thanks for the help! It has a little over 60k miles on it. I was afraid of the timing chain issue, maybe ill swing by the dealer and get it looked at.

Dizzy82 · 06-02-2015, 05:30 PM

I've noticed mine does that in cold weather when I leave it sitting for over a week. Start it up and rough idle and cylinder misfire. After a little driving, it goes back to normal.

TooCool5 · 06-02-2015, 06:19 PM

Drygas cured mine when it did this.

06-01-2015, 02:54 PM	#1
Jchuba03 Drives: 2011 1LT/RS IBM Join Date: Nov 2013 Location: Rockwood MI Posts: 89	CEL and weird rough idle Hey guys, been a while since i've posted, but something weird happened yesterday and it had me a little concerned. I had been away on vacation for a week, so the car hadn't ran during that time. The first time I started it up after i got home, everything sounded fine, so i threw it in drive and started down the road. After about 50 feet or so, my CEL flashed on and it felt like the valves/cylinders were out of sync(maybe a misfire? I'm not very technical when it comes to engine internals ). Anyway, when i would hit the gas, the car felt as if ti were jumping or hopping. So i shut the car off, turned it back on, and it has been driving perfectly since. Is this something I should be concerned about? Or just a side effect of not driving it for a week? Thanks for the help!

06-02-2015, 05:30 PM	#4
Dizzy82 Drives: 2011 1LT/RS A6 RJT SuperCharged Join Date: Mar 2011 Location: 87114 Posts: 3,503 View My Garage	I've noticed mine does that in cold weather when I leave it sitting for over a week. Start it up and rough idle and cylinder misfire. After a little driving, it goes back to normal. __________________ Power is worthless without control. *The 2nd* protects the 1st.** BMR sub frame brace, BMR tunnel brace, LSR sways, LSR CM ca & tl, Sphon ExD el, GM tower brace, Megan EZ Streets, Goodridge Stainless Steel Braided brake lines, PowerStop D/S rotors & pads, Doug Thorty Ceramic Shorties, Magnaflow x-pipe, MRT V2.0, KICKER PowerStage sub & amp, Infinity speakers & tweeters, Viteese Throttle Controller, Viteese Paddle Shifters, ACS T2 Splitter, ACS T2 Ports/Quad LED lights, VDI kit, Havoc diffuser, IPF ECU/TRANS tuned, IPF/KPE Supercharged. 364RWHP/297RWTQ

06-02-2015, 06:19 PM	#5
TooCool5 Drives: 2010 Camaro 1LS 3.6 LLT V6 325 HP Join Date: May 2009 Location: LS Posts: 4,242 View My Garage	Drygas cured mine when it did this. __________________ 2010 Camaro Auto, Inferno Orange, Titanium Interior, Gearhead Wheels AIRAID CAI

06-01-2015, 06:19 PM	#2
VASCAR2 Drives: 94 Camaro, 10 1LT IBM Camaro Join Date: Aug 2009 Location: Illinos Posts: 232	Sounds like the engine was not firing on every cylinder. If the CEL flashed the dealer or mechanic can check to see what code was thrown. If it were me I'd go to autozone and see if they would put their code reader on it. You may have a coil going bad but with the past history of timing chain tensioners issues I'd get it checked. I noticed you have a 2011 so not knowing how many miles it's hard to say what might be the cause.

06-02-2015, 06:43 AM	#3
Jchuba03 Drives: 2011 1LT/RS IBM Join Date: Nov 2013 Location: Rockwood MI Posts: 89	Thanks for the help! It has a little over 60k miles on it. I was afraid of the timing chain issue, maybe ill swing by the dealer and get it looked at.