P0684 Diagnostic Trouble Code Discussion for December 2014
Glow Plug Module Communication Signal Performance
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| Help Request | Posted | |
| 2008 Ford F-450 Super Duty XL 6.4L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FDXW47RX8 P0684: Glow plug control module to pcm. Alright ford diesel techs bear with me new to diesel world. Vehicle brought in on truck. Complaint is excessive smoke and misfiring. Quick visual inspection showed that crankcase was overfull and looks like fuel is getting mixed in the oil. Used scan tool and... |
December 10, 2014 | |
| 2008 Ford F-450 Super Duty XL 6.4L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FDXW47RX8 P0684: Glow plug control module to pcm. Alright ford diesel techs bear with me new to diesel world. Vehicle brought in on truck. Complaint is excessive smoke and misfiring. Quick visual inspection showed that crankcase was overfull and looks like fuel is getting mixed in the oil. Used scan tool and... |
December 11, 2014 |
