Ford Excursion :: Code P0683 - Glow Plug Control Module To PCM Comm Circuit
I have a 2002 7.3L and keep throwing a P0683 code (Glow Plug control module to PCm comm circuit). I have looked though all the Forum posts I could and it looks like the GPR, or the GPCM, or harness are at fault. I know my truck has the GPCM ... does it also have a GPR? I am not getting ANY individual GP failure codes, but the damn thing is having a hell of a time starting in the cold.
1) How do I determine if the GPCM is bad?
2) If I have a bad ground?
3) Bad connector to GPCM connection?
4) If something is wrong with the wiring harness itself
Last night I unplugged the harness from the GPCM, cleaned the connectors, added di-electric grease to improve the connections .. made no difference.
Ford 6.0L Power Stroke Diesel :: CEL On For Multiple Codes - Cylinder 1 / 2 / 7 And 8 Have Glow Plug Circuit Open
Just got back from the beach yesterday. On the way back I noticed the check engine light on and read the codes. It listed 4 codes, P0671,P0672, P0677 and P0678. From what I can find, Cylinder 1, 2, 7 and 8 have the glow plug circuit open. Truck ran fine and didn't miss a beat. Ambient temp was around 80 when we started up the truck so I guess diesel plugs are not to crucial for that temp. I did notice when driving back the Vbatt would jump from 12.2v at1854 RPM (34 MPH) and 13.8v at 1652 (57 MPH).
Would bad batteries or low batteries cause this type of problem? This may be wishful thinking on my part. I have tested the batts with a DMM and they are at 12.3v. I took them out and charged them but they always go down to 12.3v. FMP is 47.5v to 48.5v. It seems suspect that all four glow plugs would be bad so I assume it could be the harness. What are some ways I can test to verify where the problems come from.First thing I would do is get two new batteries as these are still under warranty.
Ford 6.0L Power Stroke Diesel :: 2005 - Fuel System Codes / Glow Plug Circuit Failure
So i just finished putting in new high pressure oil rail cup seals in and a new #2 injector. Truck was running great for about 5 miles and then just shut off. When I had it towed home I plugged in the super chips tuner "no tunes installed" and I have a p0460, p0463, p2290, p2291. I also have a #7 glow plug circuit failure Ive been a little neglectful in getting done.
View 6 RepliesFord 6.0L Power Stroke Diesel :: 2007 F350 - Check Engine Light For Glow Plug Control Module
So; I bought my 07 f350 6.0 the other day. I have a light on that sends a code for glow plug control module, but the truck starts fine, the same in cold temperatures as warm, so far nothing below 32 degrees though. I dont have the code # at the moment, but will update when i get the scanner back. Why this module is throwing a red flag?
View 6 RepliesFord 6.0L Power Stroke Diesel :: Glow Plug Code And CEL Code P0675
Truck has been running very well while in the warmer North Carolina climate pulling trailers with no limp mode or wrench light. However, when daughter started the truck this morning, SGII showed one DTC and when she pulled it up it was P0675. OK, glow plug num 5 maybe or the module. No issues starting or rough cold idle. I told her to clear the code and we'll see if comes back.
She did ask if it is something she should have it repaired before the trip back to Vermont. So I thought I'd ping the group here since reading posts, they seem to be fairly easy to replace (and assuming it isn't a chafed wire) and I could probably save her some $. Just want to make sure there isn't any chance of real engine damage.
Ford 7.3L Power Stroke (1999-2003) :: Code P0670 - GPCM Glow Plug Control Module Control Line Failure
How to fix SES P0670?? I understand there's a whole procedure on checking fault.
P0670:GPCM Glow plug control module control line failure. Open/grounded circuit, open/shorted GPCM, failed PCM
But how did you resolve problem? replaced GPCM, found open circuit, short --if so where?-- or replaced with updated harness.
(4C3Z-12B568-AA connector upgrade kit as in picture)???
Ford 6.0L Power Stroke Diesel :: Every Glow Plug Code At The Same Time?
Just happened to check codes today for fun and found something interesting. I've known about 2 or 3 glow plug codes since last winter but I looked today and I have a code for every single circuit. Thought that was kind of odd.... I already have 8 brand new plugs and both harnesses from Autonation sitting in the back seat, was just waiting till the fall to change them out. At 176k on the originals I decided to change them all. But now I'm thinking the GPCM may be faulty as well.
P0671 Cylinder 1 Glow Plug Circuit
P0672 Cylinder 2 Glow Plug Circuit
P0673 Cylinder 3 Glow Plug Circuit
P0674 Cylinder 4 Glow Plug Circuit
P0675 Cylinder 5 Glow Plug Circuit
P0676 Cylinder 6 Glow Plug Circuit
P0677 Cylinder 7 Glow Plug Circuit
P0678 Cylinder 8 Glow Plug Circuit
Ford 6.0L Power Stroke Diesel :: Glow Plug Cylinder 8 - Code P0678
Pulled p0678, glow plug 8. I've changed out the glow plug on cylinder 1 a few years ago.
Cylinder 8, being on the driver side rear, is it difficult to change out? Should I just pay Ford or another shop to fix this?
Ford 6.7L Power Stroke Diesel :: CEL Code P263C For Glow Plug Driver Performance
CEL came on in my 2013 6.7L with 74K miles a couple days ago. Pulled the code today and it was a P263C - Glow Plug Driver Performance code. Any remedy for this.
View 8 RepliesFord 6.0L Power Stroke Diesel :: Running Rough - #2 Contribution / Glow Plug / Injector Code
#2 contribution/glow plug/injector code ????? Harness looks good. What's the malfunction?? Runs rough. Never seen those 3 codes together.
View 2 RepliesFord 6.0L Power Stroke Diesel :: 2004 F250 - Glow Plug Fault - Hard To Start When Cold
I'm new to owning a diesel. I have a. 2004 f250 6.0. I gotta smog the truck this weekend but the check engine light is on. Fault is P0674. I've notice during the day it starts up fine but at nights, lately it's been low 40 outside it won't start. Where to start at.
View 3 RepliesFord 7.3L Power Stroke (1999-2003) :: Glow Plug Control Module Function?
OK, what does a glow plug control module do? The short bus I got has one on it. It looks like it fits right into the circuit without much, if any, modification. I got one with my short bus and am curious if it would be something worth adding to my pickup. So...what does it do and could I/should I install it?
View 4 RepliesFord Excursion :: 2002 7.3L With P0671 Code - Glow Plug Circuit Fault
I have have been getting a p0671 fault code every time I start my truck now that its cold. If I clear it and its warm it doesn't retrigger at least until it sits overnight again. Is this likely to be that the Glow Plug needs replacing on the #1 cylinder? Autolite Glow Plug is only $20 or so. Mechanic is recommending changing the bank and the harness but I'd rather just do the one GP myself if possible. I see on here that the valve cover has to come off. Which side is #1 on and do I need any gaskets etc? How big a job is it to remove the valve cover? I'd go and look myself but its cold out ...
View 1 RepliesFord 6.0L Power Stroke Diesel :: 2007 F250 - Check Engine Code - ICP Circuit Intermittent
I have a 2007 f250 and got a check engine code icp circuit intermittent and to what I know icp sensor should be on the valve cover on the passenger side but it's not I bought the truck few months ago could it be that they swapped the engine for an early 6.0 or is there any other place for the icp sensor???
View 7 RepliesFord 6.0L Power Stroke Diesel :: Glow Plug Replacement?
I have to replace the #6 glow plug. I confirmed it is bad and the harnes broke when trying to reove it with the proper tool. I ordered a new glow plug, ZD13, and a new drivers side harness.
I have never replaced a glow plug before but it seems pretty straight forward. I watched some youtube videos and did some reading.
I have read some state that you have to loosen the glow plug with a 10mm socket and then take some tubing and push it onto the glow plug to finish loosening it and prevent it from falling into the cylinder. I have read people saying it took them hours with a magnet to get the plug out of the cylinder.
If the plug is threaded and is removed from the threads how is it possible for it to fall past the threads into the cylinder?
Anything special I need to know? Anti-seize on the threads and dielectric grease on the connection? What the torque spec is?
Ford 6.0L Power Stroke Diesel :: Leaking Glow Plug Harness Cause Hot No Start
Could a leaking passenger side glow plug harness cause a "hot no start?
View 5 RepliesFord 6.7L Power Stroke Diesel :: Glow Plug Fell Inside The Cylinder
I would like to know if i am the only one that had that problem... a few weeks ago, I had to stop and get the truck towed to the dealership and they told me that my engine was shot. Then they told me it was a glow plug that fell inside the cylinder... didn't know it was possible but any way it was under warranty.
Last Monday they asked me to bring all my service receipt and that ford is asking them to take the engine apart and study it before they would ship a new engine... Are the trying to get away from paying it under warranty? The truck is 2011 with 80000 km (50000 miles).
Ford 6.7L Power Stroke Diesel :: 2014 - Removing Glow Plug Harness?
I'm really struggling to get this sucker off my 2014 6.7 F350
it says in the ford manual to lift the plastic tabs then pull off, I did that easily with 3 on each side, but the end plug on each side (the one closest to the windshield) does not seem to have a liftable tab (it looks different to the others as its at the end of the cable)
I've almost broken it but not quite, its over $300 for new harness, ouch
I do have the odd little hook tool they sell for this, it worked with the other 3 for sure, but I've spent ages on the 4th on each side and cannot budge either of them
Ford 6.0L Power Stroke Diesel :: 2003 - Leaking From The Glow Plug Harness
Got a 2003 6.0 that seems to be leaking from the glow plug harness. How hard would it be to just replace them? I've heard that trying to remove these things can be a pain because they almost always break. But if I'm just going to replace them who cares right?
Is there anything I need to be careful about? Or can I just rip em on out? Also I've noticed two different styles of harness should I replace mine with the other style or just keep it the same? And yes those valve cover nuts are loose. I'm aware