P0671-P0678 all glow plug code - Ford Powerstroke Diesel Forum
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Old 06-03-2013, 07:58 AM
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P0671-P0678 all glow plug code

So I've posted this separately just to see if I can get more info. Third start of the day yesterday all codes flipped and continue to flip everytime I start it. I've read about testing the module but not great with electronics. Any ideas on next step or should I attempt it? Also I've read there is no fuse for the glow plugs is that correct?

2005 F350 6.0


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Old 01-28-2014, 07:23 PM
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Did you ever figure out what was wrong? I just had the dealership replace my EGR cooler, oil cooler and had the turbo cleaned. Now I get codes for all of my glow plugs and even some for my EGR valve (P0403,P0405).
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Old 01-28-2014, 07:33 PM
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Jonny, I can't be certain what the issue was. I replaced all the fuseable links that run to the passenger side battery and it resolved the problem. Wish I had more info to help ya. Good luck!
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Old 01-28-2014, 09:04 PM
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I would suspect a controller or wireing issue more than all eight glow plugs or even a majority going out all at once.
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Old 03-24-2014, 03:30 PM
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Quote:
Originally Posted by dcbutcher View Post
Jonny, I can't be certain what the issue was. I replaced all the fuseable links that run to the passenger side battery and it resolved the problem. Wish I had more info to help ya. Good luck!
Would you mind elaborating? I'm terrible with electronics as well. Just replaced my GPCM and still getting the same P0671-P0678 codes. Where are the fuses that you replaced exactly?
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Old 03-24-2014, 03:32 PM
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On the passenger side battery there are stock wires that I believe run from the alternator, one large gauge wire is split into 3 or maybe 4 smaller wires. Inside these wires are fuseable links. This is just my understanding but I, like yourself, am terrible when it comes to electrical issues
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