p0300 random misfire - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

yardstick · 09-02-2012, 10:23 AM

Anyone know what my cause this? Dealer says bad gas...but, I use top tier (shell).

Notice that the misfire only happens when engine cold after sitting all night and during first 15min of operation (not constant..intermitent)

TooCool5 · 09-03-2012, 09:09 AM

The intakes are gunked up, there is a service bulletin on this for the V6. Happens only when cold.
Spray intake safe cleaner in while running it and do a bottle of Techron fuel injector cleaner in the tank.
Also could be something stupid like a bad plug, coil or wire.
Have it checked out at the dealer.

Chevrolet Customer Svc · 09-04-2012, 10:31 AM

Quote:

Originally Posted by yardstick

Anyone know what my cause this? Dealer says bad gas...but, I use top tier (shell).

Notice that the misfire only happens when engine cold after sitting all night and during first 15min of operation (not constant..intermitent)

I can understand that what you are experiencing may be a little frustrating. How often does this occur? I can also set up a case with GM customer service if you provide me with your first and last name, address, phone number, VIN, mileage and involved dealership!

Brandon
Chevrolet Customer Service

yardstick · 09-04-2012, 09:13 PM

Brandon,

Do you have access to TSBs? If so, is there one out on this subject? Dealer told me that GM stated bad gas is causing this. Doesn't seem right to me. I will complain to them again when the car is taken in for first service.

Chevrolet Customer Svc · 09-05-2012, 09:35 AM

Quote:

Originally Posted by yardstick

Brandon,

Do you have access to TSBs? If so, is there one out on this subject? Dealer told me that GM stated bad gas is causing this. Doesn't seem right to me. I will complain to them again when the car is taken in for first service.

Unfortunately, I do not have TSB information. But I can set up a case with GM customer service to do more research and to contact your dealership. I would just need the previous information that I requested.

I look forward to your reply in a PM.

Brandon
Chevrolet Customer Service

TooCool5 · 09-05-2012, 09:49 AM

If its the research he did for me its useless..
http://www.camaro5.com/forums/showthread.php?t=246918

09-02-2012, 10:23 AM	#1
yardstick Drives: 2012 Black 1SS Join Date: Jul 2011 Location: San Antonio Posts: 66	p0300 random misfire Anyone know what my cause this? Dealer says bad gas...but, I use top tier (shell). Notice that the misfire only happens when engine cold after sitting all night and during first 15min of operation (not constant..intermitent)

09-03-2012, 09:09 AM	#2
TooCool5 Drives: 2010 Camaro 1LS 3.6 LLT V6 325 HP Join Date: May 2009 Location: LS Posts: 4,242 View My Garage	The intakes are gunked up, there is a service bulletin on this for the V6. Happens only when cold. Spray intake safe cleaner in while running it and do a bottle of Techron fuel injector cleaner in the tank. Also could be something stupid like a bad plug, coil or wire. Have it checked out at the dealer. __________________ 2010 Camaro Auto, Inferno Orange, Titanium Interior, Gearhead Wheels AIRAID CAI Last edited by TooCool5; 09-03-2012 at 06:21 PM.

09-05-2012, 09:49 AM	#6
TooCool5 Drives: 2010 Camaro 1LS 3.6 LLT V6 325 HP Join Date: May 2009 Location: LS Posts: 4,242 View My Garage	If its the research he did for me its useless.. http://www.camaro5.com/forums/showthread.php?t=246918 __________________ 2010 Camaro Auto, Inferno Orange, Titanium Interior, Gearhead Wheels AIRAID CAI Last edited by TooCool5; 09-05-2012 at 10:12 AM.

09-04-2012, 09:13 PM	#4
yardstick Drives: 2012 Black 1SS Join Date: Jul 2011 Location: San Antonio Posts: 66	Brandon, Do you have access to TSBs? If so, is there one out on this subject? Dealer told me that GM stated bad gas is causing this. Doesn't seem right to me. I will complain to them again when the car is taken in for first service.