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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Code PO683, tough start, runs poorly

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Old Oct 13, 2014 | 08:27 PM
  #1  
bkvanbek's Avatar
bkvanbek
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Code PO683, tough start, runs poorly

I have this code, and the glow plugs are not working all the time. Could it be anything else or should I just replace this module?
 
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Old Oct 15, 2014 | 09:19 PM
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bkvanbek
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Some help please

Can I get some input?
 
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Old Oct 15, 2014 | 09:33 PM
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dannyboy950
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Check for a chafe or broken wire from the pcm to the GP module. If none probably a bad GPM.
 
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Old Oct 16, 2014 | 08:31 PM
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Restlesswildman
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From: SW Ohio
Have you had the truck apart at all?

Check 2 plugs on the GP module. Make sure they are plugged in tightly. I tossed the same code after having a few things apart. It turned out that the plugs where not in 100%.
 
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