i have been having a crank no start issue with my 6.7 . it was itermitent now it wont start at all but does crank . so i had it at a ford dealer in san antonio and they could not figure it out . they changed out a relay . made it 1500 miles and same issue . my truck has been in a local diesel shop up here where they changed the lift pump replaced a plug that had poor connections . drove to the hotel , wont start , they said it was getting some power issues coming out of the pcm so they swapped it with one that came out of a similiar f350 . and it did not fix the issue . they are are tracing wires now any guidence would be greatly appreciated
RepairPal Certified shops can diagnose and repair your 2016 Ford F-350 Super Duty. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
My goodness, don't risk taking your Super Duty to a "Diesel Shop" - this engine has Ford specific diagnostic equipment required and Ford technician training that is really beneficial. I can't say it enough that a true trained Ford Diesel technician is such a value when you have a truck like this.
Guessing like they are doing is only costing you money and making it more complicated with replacement parts (likely unnecessary).
"Power issues out of the PCM"? I hate to say this, but a PCM merely "grounds" a circuit. It does not power anything.
I'm quite concerned about the service you're getting at the chosen shop. Seek proven Ford Diesel tech help near you -- at a reputable shop or at the local Ford dealership.
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