Misfire code cylinder 6 - Chevrolet Forum - Chevy Enthusiasts Forums

Go Back   > >
Log In 

Tahoe & Suburban The power, space, and brutal towing ability make the Tahoe and its longer sibling, the Suburban, arguably the best full size SUV's on the market today.

2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

LinkBack Thread Tools Search this Thread
Old 02-11-2011, 02:41 PM
CF Beginner
Thread Starter
Join Date: Apr 2009
Location: Westchester, NY
Posts: 17
Default Misfire code cylinder 6

Within the last month and half i have been getting a check engine light on becasue of a misfire on cylinder 6. The code is P0306.

I ended up changing a few things. I went with the Taylor 82605 8.2MM spark plug wires. Spark plugs were autolite XP5245 and new acdelco ignition coil pack.

I did the plugs first about three months before i was getting the check engine light. Everything was fine then the misfire came up. Thats when i started troubleshooting. I then did the wires gave it a week and the light went off but Bang back on. I then went with the new ignition coil light goes off the next day a week later bang its on. I noticed its very cold around 10 degrees when the light comes on.

Now keep in mind if the light wouldnt have come on i wouldnt have been able to tell there was a misfire. The truck runs great no matter how cold or hot it is. I also ran seafoam through brake booster to see if that would help it. Once again i can only tell tha the light comes on when its cold but the trcuk no matter what runs smooth and great.

Any ideas would be greatly appreciated.

Reply With Quote
Old 02-11-2011, 05:53 PM
73shark's Avatar
Join Date: Apr 2006
Location: KC, MO area
Posts: 9,045

Might try switching plug #6 w/ another one and see if the problem either goes w/ the plug or stays w/ the cylinder or goes away altogether.
Reply With Quote
Old 02-12-2011, 08:02 AM
CF Beginner
Thread Starter
Join Date: Apr 2009
Location: Westchester, NY
Posts: 17

I already did that. I switched plug 6 with plug 4 and also the wire and same issue. I think it's the autolite plugs. I'm going back to acdelco.

Last edited by Vinniety; 02-13-2011 at 11:23 AM.
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Cylinder 1 injector misfire code Cookie4699 Malibu 1 12-29-2014 01:16 AM
Can a code that says Engine Misfire cylinder 3 ever be real serious?? jmbeam Malibu 1 06-21-2012 07:07 PM
Please help so frustrated!!!!!! Chevy random cylinder misfire code PO300 syuchimiuk Express & G-Series Vans 9 03-20-2011 10:54 AM
all odd cylinder misfire adambraap General Tech 2 02-16-2007 07:49 PM
P0302=Cylinder 2 Misfire Detected Need Help!! akimber Silverado & Fullsize Pick-ups 14 08-22-2006 11:45 AM

02, 03, 97, autolite, avalanche, chevy, code, cylindar, cylinder, lumina, misfire, p0306, plugs, suburban, tahoe, xl, yukon

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 08:54 PM.