help code po674 - Diesel Truck Forum - TheDieselGarage.com
Thread Details Posted by spock, this thread has received 7 replies and been viewed 4176 times.

 
LinkBack Thread Tools Display Modes
post #1 of 8 (permalink) Old 12-07-2010, 08:38 PM Thread Starter
Junior Member
 
Join Date: Dec 2008
Posts: 52
Points: 15,016
Thanks: 0
Thanked 3 Times in 3 Posts
help code po674

Need some advice, i get a code po 674 glow plug #4 circuit failure almost ever time i start the truck.Not every time but 95% of the time it makes no difference if the truck is hot or cold.Anyone have any ideas bad glow plug,uvch,glow plug relay.Any help to point me in the right direction would be appreciated.

2000 f-350 dually 4X4 ais intake,btm,dp-tuner f-5,autometer boost egt trans,ftv valve body.
spock is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 12-08-2010, 03:47 PM Thread Starter
Junior Member
Threadstarter
 
Join Date: Dec 2008
Posts: 52
Points: 15,016
Thanks: 0
Thanked 3 Times in 3 Posts
Unhappy code po 674

Nobody has anything to offer. I guess I'll start throwing parts at it,I don't like the dealer.:confused.

2000 f-350 dually 4X4 ais intake,btm,dp-tuner f-5,autometer boost egt trans,ftv valve body.
spock is offline  
post #3 of 8 (permalink) Old 12-08-2010, 04:19 PM
Gone Fishin...
 
merlin5577's Avatar
 
Join Date: Dec 2008
Location: Taunton, MA
Posts: 3,099
Points: 12,990
Thanks: 1,058
Thanked 561 Times in 471 Posts
Send a message via AIM to merlin5577 Send a message via Yahoo to merlin5577
That year truck has the wiring harness through the valve cover correct? If so, its most likey a loose or damaged wire.

-Robert.

My Fleet;

2011 Volkswagen Jetta TDI 2.0L 6A
2010 Chevrolet Malibu LT 2.4L 6A
2003 Chevrolet Silverado LS 6.6L 5A
1997 GMC Suburban SLT 5.7L 4A

TDG MAFIA
Quote:
If you dont stand behind our troops, feel free to stand in front of them.
Thinking of buying a Duramax? You need to click this link;

Reading material

I am an old Fart;

Toot-Toot

merlin5577 is offline  
post #4 of 8 (permalink) Old 12-08-2010, 05:19 PM Thread Starter
Junior Member
Threadstarter
 
Join Date: Dec 2008
Posts: 52
Points: 15,016
Thanks: 0
Thanked 3 Times in 3 Posts
Correct Robert wiring harness through the valve cover. I'll check out wires today and see how they look. A duramax man to the rescue,thanks Robert.

2000 f-350 dually 4X4 ais intake,btm,dp-tuner f-5,autometer boost egt trans,ftv valve body.
spock is offline  
post #5 of 8 (permalink) Old 12-08-2010, 05:57 PM
Gone Fishin...
 
merlin5577's Avatar
 
Join Date: Dec 2008
Location: Taunton, MA
Posts: 3,099
Points: 12,990
Thanks: 1,058
Thanked 561 Times in 471 Posts
Send a message via AIM to merlin5577 Send a message via Yahoo to merlin5577
Quote:
Originally Posted by spock View Post
Correct Robert wiring harness through the valve cover. I'll check out wires today and see how they look. A duramax man to the rescue,thanks Robert.
Lover of all things diesel to be more accurate.

You've got one of two things going on. The wiring is bad, or the glow plug is bad. Good luck.

-Robert.

My Fleet;

2011 Volkswagen Jetta TDI 2.0L 6A
2010 Chevrolet Malibu LT 2.4L 6A
2003 Chevrolet Silverado LS 6.6L 5A
1997 GMC Suburban SLT 5.7L 4A

TDG MAFIA
Quote:
If you dont stand behind our troops, feel free to stand in front of them.
Thinking of buying a Duramax? You need to click this link;

Reading material

I am an old Fart;

Toot-Toot

merlin5577 is offline  
post #6 of 8 (permalink) Old 12-10-2010, 01:42 AM
Gone Fishin...
 
merlin5577's Avatar
 
Join Date: Dec 2008
Location: Taunton, MA
Posts: 3,099
Points: 12,990
Thanks: 1,058
Thanked 561 Times in 471 Posts
Send a message via AIM to merlin5577 Send a message via Yahoo to merlin5577
Any update to this?

-Robert.

My Fleet;

2011 Volkswagen Jetta TDI 2.0L 6A
2010 Chevrolet Malibu LT 2.4L 6A
2003 Chevrolet Silverado LS 6.6L 5A
1997 GMC Suburban SLT 5.7L 4A

TDG MAFIA
Quote:
If you dont stand behind our troops, feel free to stand in front of them.
Thinking of buying a Duramax? You need to click this link;

Reading material

I am an old Fart;

Toot-Toot

merlin5577 is offline  
post #7 of 8 (permalink) Old 12-10-2010, 04:31 PM Thread Starter
Junior Member
Threadstarter
 
Join Date: Dec 2008
Posts: 52
Points: 15,016
Thanks: 0
Thanked 3 Times in 3 Posts
After checking out wiring harness on both sides i found no bad wires.But I've started truck about ten times since then and no code, so I'm HAPPY so far.

2000 f-350 dually 4X4 ais intake,btm,dp-tuner f-5,autometer boost egt trans,ftv valve body.
spock is offline  
post #8 of 8 (permalink) Old 12-10-2010, 04:47 PM
Gone Fishin...
 
merlin5577's Avatar
 
Join Date: Dec 2008
Location: Taunton, MA
Posts: 3,099
Points: 12,990
Thanks: 1,058
Thanked 561 Times in 471 Posts
Send a message via AIM to merlin5577 Send a message via Yahoo to merlin5577
Nice!

-Robert.

My Fleet;

2011 Volkswagen Jetta TDI 2.0L 6A
2010 Chevrolet Malibu LT 2.4L 6A
2003 Chevrolet Silverado LS 6.6L 5A
1997 GMC Suburban SLT 5.7L 4A

TDG MAFIA
Quote:
If you dont stand behind our troops, feel free to stand in front of them.
Thinking of buying a Duramax? You need to click this link;

Reading material

I am an old Fart;

Toot-Toot

merlin5577 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Truck Forum - TheDieselGarage.com 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










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
codes po678, po676, po674, po672 JoeDirte 1994-2003 7.3L Power Stroke 2 08-22-2010 09:31 AM
Can I Put J-Code Exhaust Manifolds On a C-Code Engine JLanzino 6.2L Diesel Engine 6 10-08-2009 02:29 AM
P1689 ERROR CODE - Cause of code Found! Mopar1973Man 5.9L Cummins (1998.5-2002) 6 02-02-2009 02:36 PM
STX 500 Code smokinstroke Utility & Farm Tractors 12 04-02-2008 12:50 AM
what does this code mean fender Duramax 2001-2004 (LB7) 7 06-03-2006 05:33 PM

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

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