I have a 2005 super duty diesel that cranks but won't start. No communication with scan tool and all fuses are good.Could it be the PCM?

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Asked by Sep 19, 2007 at 09:41 PM about the 2005 Ford F-350 Super Duty XLT 4WD Crew Cab LB

Question type: Maintenance & Repair

Vehicle died while driving on interstate,Checked vehicle out,no communication with scan tool and all fuses are good.

2 Answers

40,285

Yeah, if there's no communication with the scan tool, it sounds like the PCM is shot. No communication with OBD-II is a typical sign of PCM failure.

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Maybe a bit late for you - same thing happened to mine, with obvious power loss as well. Recall repair - "oil pump sending unit". No issues now - noticeable power improvement when towing.

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