Join Date: Apr 1999
Location: Iron Ridge, WI, USA
Feedback Score: 0 reviews
Re: Al of a sudden, 2005 6.0L Cranks but won't Start :(
Cowdoc – I had the same issue on my 2004 E-350, 6.0L. The problem continued from about 75,000 miles to 121,000 miles. After many episodes of “no start” and not being able prove it to the dealership; the tech (EVS, Lomira, WI - see Tom) decided to install a device to monitor the conditions at the time of “no start”. Just like with you, every one here said it was the HPOP. Also, just like you, it was inconsistent - sometimes it did it when hot, but also did it when cold. The cold no start would not likely be the result of a bad HPOP. In any event, the “flight recorder” showed that there was good HP oil pressure while cranking, but sensor signals were not getting to the PCM to tell the injectors to fire. The repair was the replacement of the engine wiring harness. Unfortunately, Ford would not contribute to the repair. From 121,000 to the current 167,000 there has not been one failure — (knocking on wood here). It seemed to work for me. Good Luck.