Glowplug failure help! - Ford Powerstroke Diesel Forum

 
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post #1 of 3 Old 07-28-2014, 05:30 AM Thread Starter
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Glowplug failure help!

Hey guys looking for a little help with my truck, shes a 2004 f-250 6.0l with 110,000 miles on her and lately ive been getting codes for "glowplug circuit failure" on cylinders 1,3 and 7 i went ahead and replaced the passenger side g.p harness and i am still getting the same codes. Is it possible all 3 glow plugs are bad? (Seems odd 3/4 would go on the same side) or is it my gpcm? Tested the gpcm last week and it read it was within spec (possible im doing somethi g wrong?) Any and all help,advice, opinions is greatly appreciated


Tom
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post #2 of 3 Old 07-29-2014, 08:13 AM
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I am curious to hear what you find out because I just got a check engine light with a P0678 code which indicates an issue with the cylinder 8 glow plug circuit. Since I will be working on it after work, I am planning on buying the harness and 4 glow plugs and doing all the ones on the drivers side since I have already invested the time removing the interference.

I am curious how long it took you to do the job and if there is anything you know NOW that you wish you knew before you started the job.

Thanks.


2007 F-350 W/Lariat package
4x4 6.0l diesel engine
Leveling kit and 35 inch tires
Coolant Filter kit
EGR Delete Kit
Glowshift Gauge Pillar Pod (EGT, Trans Temp, Fuel Pressure and Coolant Pressure)
Fuel System Blue Spring Upgrade
SCT Tuner
Diamond Eye 4" stainless steel turbo back exhaust kit
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Zoodad Mod
Backup Cameras from Tadibrothers.com for both truck and 25' Travel Trailer
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post #3 of 3 Old 08-01-2014, 07:53 AM
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So, I removed the inner fenderwell cover and carefully removed the glow plug harness connector and replaced #8 cylinder glow plug (it was suprisingly easy) and reconnected the harness. I then cleared the code and started the truck. No more check engine light... Woo Hoo! Then, the next day I got the P0678 code again. I cleared it and it stayed off until the next day which was yesterday.

I am kicking myself for going the more cost effective route ( aka cheaper route ) and replacing only the one then returning all the parts. I should have executed the plan I had and replaced all the ones on that side including the harness while I had it apart!


2007 F-350 W/Lariat package
4x4 6.0l diesel engine
Leveling kit and 35 inch tires
Coolant Filter kit
EGR Delete Kit
Glowshift Gauge Pillar Pod (EGT, Trans Temp, Fuel Pressure and Coolant Pressure)
Fuel System Blue Spring Upgrade
SCT Tuner
Diamond Eye 4" stainless steel turbo back exhaust kit
ScanGuage II
Zoodad Mod
Backup Cameras from Tadibrothers.com for both truck and 25' Travel Trailer
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