Problem.... - Pontiac GTO Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 9 (permalink) Old 09-27-2016, 04:05 PM Thread Starter
 
Join Date: Jan 2016
Location: Florida
Posts: 40
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Problem....

Have a buddy that is trying to rebuild a 06 M6 GTO for someone. They pulled the motor and took it to a shop where they cleaned the engine, and had to replace the crank. Once they received the engine back, and put it back in the car, the motor didn't run right. Sounds like it's running on 4 cylinders, so they replaced the cam gear and it still ran like crap. I went over to help pull the motor back out last weekend, because our new conclusion was the reluctor wheel, which we are being told by the engine shop that, that looks fine, and we tested each coil, and found that cylinders, 1,3,4,8 were not firing. Anybody have a single clue what this could be? They put new coils on, and wires, we had all grounds on the engine down, and everything connected... Have no clue what to do next. Thank you for your time.
Bryce108 is offline  
Sponsored Links
Advertisement
 
post #2 of 9 (permalink) Old 09-27-2016, 08:55 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
Did they put the right crank in it? Seeing as it's the only thing replaced (besides I assume the bearings) I would wonder if it had the right reluctor wheel. There are two different ones a 24x and a 58x. LS1s all had 24x wheel and LS2s had either 24x or 58x depending on when the motor was built.

Reluctor Wheel 24x & 58x ? - LS1GTO.com Forums

2004 Blk/Rd M6
6.3 litre LS1

Built and tuned by svede
svede1212 is offline  
post #3 of 9 (permalink) Old 09-27-2016, 10:58 PM Thread Starter
 
Join Date: Jan 2016
Location: Florida
Posts: 40
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Yeah new crank. My buddy said the shop said the reluctor wheel looked fine. I was also told all GTO's came with the 24X because of the PCM the GTO uses.
Bryce108 is offline  
 
post #4 of 9 (permalink) Old 09-28-2016, 09:48 AM
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
Did they give you back the old part? You could check it to see which one it had. I've seen reports some odd '06s had the 58x reluctor. With what was done my money is on that.

2004 Blk/Rd M6
6.3 litre LS1

Built and tuned by svede
svede1212 is offline  
post #5 of 9 (permalink) Old 09-28-2016, 06:31 PM Thread Starter
 
Join Date: Jan 2016
Location: Florida
Posts: 40
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Ended up being bent reluctor wheel
Bryce108 is offline  
post #6 of 9 (permalink) Old 09-29-2016, 12:27 PM
 
GTO44's Avatar
 
Join Date: Apr 2016
Posts: 316
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 37 Post(s)
Forgot to ask you... When you guys took it back apart, Which reluctor did it end up having in it, 24 or 58?

2006 GTO M6

Motor - Stock with Vararam
Bunch of suspension
Bunch of brakes
Stock tune

365/368 std
12.81 @ 110.6 2.03 60'
GTO44 is offline  
post #7 of 9 (permalink) Old 09-29-2016, 06:48 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
Quote:
Originally Posted by Bryce108 View Post
Ended up being bent reluctor wheel
Glad they found it. Many times when you change a part and it doesn't work it was the part.

2004 Blk/Rd M6
6.3 litre LS1

Built and tuned by svede
svede1212 is offline  
post #8 of 9 (permalink) Old 10-01-2016, 07:09 AM Thread Starter
 
Join Date: Jan 2016
Location: Florida
Posts: 40
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Quote:
Originally Posted by svede1212 View Post
Glad they found it. Many times when you change a part and it doesn't work it was the part.
Haha yup! well we are about to put that motor back in and see if she runs right sometime soon. Doing my Longtube headers on my 05 m6 and motor mounts and a tune today.
Bryce108 is offline  
post #9 of 9 (permalink) Old 10-01-2016, 01:12 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
If you have the motor out disconnect the steering shaft and lay the driver's side header in there before you put the engine in. It will make it so much easier not having to drop the steering rack later

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
Help With Problem Falco21 Service, Maintenance and Technical Discussion 12 04-09-2012 06:45 PM
one problem down one to go my1971gto4spd 1964-1974 Tempest, Lemans & GTO General Discussion 14 04-19-2006 10:25 AM
T/C problem ThePrincipal Service, Maintenance and Technical Discussion 3 04-10-2006 07:52 PM
M6 problem's Dragon 32 Drive train, suspension, alignment and brakes. 36 02-28-2006 09:43 PM
Never seen this problem before... Justice Service, Maintenance and Technical Discussion 11 01-16-2006 05:26 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