I have a good friend that bought a 2009 F350 6.4 4x4 automatic. It is a service truck for his well drilling business. Since I keep his fleet running, I asked him not to buy a 6.0/6.4, so of course he bought one. He called me 2 years ago, he had filled it with gasoline and it quit a block from the station. Had it towed to his shop, I drained the tank, changed all the filters, and it has been running every day since. Last week it started throwing p0088 and p0500. The driver tells me that the cruise will drop out, and the truck will lose power. Shut it off and restart and it is ok for a few miles. I have visually inspected the harnesses, and verified 5v at the connector on the right valve cover, and replaced the VSS at the the transmission output. My concern is that it looks like VSS and fuel rail pressure sensors are pins 39 and 40 at the PCM. How do I identify the connectors at the PCM? My Mitchell diagram shows C1232B and C1232E.
Thanks for the reply. I changed the filters last week, before I knew to check them for metal. I will check them again, since it has been run a hundred miles or so. It concerns me that there are two codes, the p0500 sets almost immediately on a drive after clearing, and the p0088 takes a while longer. All of the speed sensors read the same on the Modis. The cab has been off at least twice by other shops, for other issues. I want to be real sure before I take that step. I am a one man shop with too much other work to make a mistake on this one. I have spent some time researching, and I will ohm the harness today, after I check the filters.
Thanks, I appreciate the help. I spent some more time on the wiring, and I see that the ABS VSS and the fuel rail pressure sensor signal wires are in two different connectors, so my suspicion of trouble between the two appears to be unfounded. The filter under the hood is clean and there is no evidence of contamination in the bowl. I am taking to a Ford dealer for a re-flash to the latest and greatest. I will keep you posted.
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