Suddenly Lost 4? cylinders--trac off - Pontiac GTO Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 05-19-2015, 04:02 PM Thread Starter
 
Join Date: Mar 2008
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Suddenly Lost 4? cylinders--trac off

2006 M6 GTO with 102,000 miles. Changed plugs and wires 2 weeks ago. Only mod is Volant CAI. Driving on the freeway at 75mph, engine suddenly started running rough the TRAC control went off and button does nothing. No check engine light??? Pulled off freeway, engine is missing badly on multiple cylinders on both sides. Disconnected/reconnected battery with no improvement. Drove the remaining way home with the average mileage increasing all the way???? Pulled all plugs and wires--nothing wrong there. Started up and checked temp of each exhaust port/manifold. Cylinders 1,3,2 and 4 are cold. Disconnected and reconnected all the basic connectors with no change. Now have check engine light-flashing. Code set is P0300--Random misfire detected. Any suggestions? Is there a good place or person that is good at trouble shooting these issues/cars here in Phoenix??? Replaced the cam sensor this evening--no improvement

Last edited by 06Ron; 05-21-2015 at 12:50 AM.
06Ron is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 08-26-2015, 02:22 AM
 
Join Date: Aug 2015
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
did you verify that those cylinders were getting spark? If they aren't I'd check your coil packs.
r3d05GTO is offline  
post #3 of 3 (permalink) Old 08-26-2015, 12:14 PM
Former Moderator
 
svede1212's Avatar
 
Join Date: Oct 2005
Location: Grand Rapids, Michigan
Posts: 4,081
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 25 Post(s)
Garage
Odd that it's the front cylinders of the engine. If it was one side or the other I'd say harness plugs but even then I'd still say it was a spark or injector problem. Were the plugs wet? They should be if there was no spark.

2004 Blk/Rd M6
6.3 litre LS1

Built and tuned by svede
svede1212 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
Fitting new wheel cylinders on 67 Tempest DanT 1964-1974 Tempest, LeMans & GTO Technical and Electrical Wiring 3 10-12-2013 08:26 AM
tachometer suddenly stopped working woolsey10 1964-1974 Tempest, LeMans & GTO Technical and Electrical Wiring 4 09-06-2012 06:42 PM
Posi trac conversion kit for 71' Lemans SPCMarty 1964-1974 Tempest, LeMans & GTO Technical and Electrical Wiring 1 11-10-2011 04:42 PM
04 suddenly running rich Sonny55 Service, Maintenance and Technical Discussion 0 06-30-2011 02:05 PM
Trac Control jobathehut Engine Discussions 25 11-27-2009 12:00 AM

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