06 gto misfire - Pontiac GTO Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 10 (permalink) Old 12-17-2010, 06:01 PM Thread Starter
 
Join Date: Dec 2010
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
06 gto misfire

i have an 06 gto with 60,000 miles. cylinder 6 misfires the most and 4 just somtimes. ive replaced plugs, wires, and coils and still the same thing please help with any ideas on what it could be thanks
s10ss is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 12-17-2010, 07:25 PM
 
06BLACKGTO64's Avatar
 
Join Date: Oct 2010
Location: Columbus, OH-IO
Posts: 213
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Send a message via Yahoo to 06BLACKGTO64 Send a message via Skype™ to 06BLACKGTO64
have you checked the fuel injectors? something you could do is change an injector from another cylinder and see if the problem jumps.
06BLACKGTO64 is offline  
post #3 of 10 (permalink) Old 12-17-2010, 11:47 PM
 
87GN06GTO07IRL's Avatar
 
Join Date: Aug 2009
Location: A few car lengths ahead in Cleveland Ohio
Posts: 1,018
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Do a fuel pressure test and a compression test too.

<-- Guess which ones quicker?.....Nope! Not even close.
87GN06GTO07IRL is offline  
 
post #4 of 10 (permalink) Old 12-28-2010, 10:32 PM
 
JRSGTO's Avatar
 
Join Date: Aug 2010
Location: Palm Beach
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
my brother works at an Audi dealership as a service advisor and for the past couple of weeks customers have been saying that there cars are 'misfiring' or something like that.....he said that high octane fuel like 93 gets affected by the cold weather..has something to do with the Volatility, cant remember the science behind it... but putting 87 octane when its cold fixes the problem...weird i know but if this is a new thing ur goat starting doing when it got cold, i would give 87 octane a try, but just maybe a half tank...if it has nothing to do with the cold then now you know something new
JRSGTO is offline  
post #5 of 10 (permalink) Old 12-29-2010, 02:43 PM
 
Join Date: Jan 2007
Location: QUEENS N.Y.
Posts: 197
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
so, did you do the 87? what was the outcome

lingenfelter cai, vararam tb spacer, v/max ported tb, livernoise stage 2 heads with comp cam 232/232/.50 114 lsa. slp 1 3/4 headers high flow cats, x pipe, qtp cut outs, flowmaster mufflers. tuned by tt performance , highly recomended in n.j.
NEXSTAR7 is offline  
post #6 of 10 (permalink) Old 12-29-2010, 02:45 PM
 
jpalamar's Avatar
 
Join Date: Jul 2008
Location: Boyertown, PA
Posts: 3,765
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
That 87 thing doesn't sound legit.
jpalamar is offline  
post #7 of 10 (permalink) Old 12-30-2010, 05:01 AM
 
06BLACKGTO64's Avatar
 
Join Date: Oct 2010
Location: Columbus, OH-IO
Posts: 213
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Send a message via Yahoo to 06BLACKGTO64 Send a message via Skype™ to 06BLACKGTO64
Ive heard of fuel causing an engine to run poor..when i worked at ford we had a bunch of vehicles come in with failing injectors and we took a rough survey and most of the used BP regularly, we summed it down to BP using different additives in their fuel but nothing was ever proven. if it was a fuel thing though i dont think it would call out the same cylinder just about everytime and only between two cylinders..I would stick to checking Fuel pressure, changing the injector from that cylinder with a cylinder that is not called out and if none of those work i would start looking at the coil pack to see if your getting proper spark. fuel thing seems like a longshot IMHO
06BLACKGTO64 is offline  
post #8 of 10 (permalink) Old 12-31-2010, 05:07 PM
 
taylorb765's Avatar
 
Join Date: Jun 2010
Location: Nebraska
Posts: 84
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
He figured out the problem it was a melted down converter, i know this because i sold him the car.

2006 GTO Edelbrock shorty headers, x pipe, muffler deletes, K&N airbox, diablosport 91 octane tune, billet short throw shifter.

1.90 60ft, 8.46 1/8, [email protected] 1/4
taylorb765 is offline  
post #9 of 10 (permalink) Old 01-01-2011, 08:10 AM
 
Join Date: Jan 2007
Location: QUEENS N.Y.
Posts: 197
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
how'd that happen?

lingenfelter cai, vararam tb spacer, v/max ported tb, livernoise stage 2 heads with comp cam 232/232/.50 114 lsa. slp 1 3/4 headers high flow cats, x pipe, qtp cut outs, flowmaster mufflers. tuned by tt performance , highly recomended in n.j.
NEXSTAR7 is offline  
post #10 of 10 (permalink) Old 01-04-2011, 08:48 PM
 
taylorb765's Avatar
 
Join Date: Jun 2010
Location: Nebraska
Posts: 84
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
When I had the car i had some issues with the trigger in the computer shorting out for all the coils on that bank. All the misfires while i was trying to diagnose it most likely melted down the converter and it finally plugged up for him.

2006 GTO Edelbrock shorty headers, x pipe, muffler deletes, K&N airbox, diablosport 91 octane tune, billet short throw shifter.

1.90 60ft, 8.46 1/8, [email protected] 1/4
taylorb765 is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 2004-2006 GTO > Service, Maintenance and Technical Discussion

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac GTO Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Gto Misfire KennedyKustoms Engine Discussions 6 04-21-2010 12:11 AM
New spark plugs? Misfire? WanaGTO Service, Maintenance and Technical Discussion 2 05-17-2009 07:02 PM

Posting Rules  
You may post new threads
You may 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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome