2015 f350 6.7 diesel with 46,000 miles that is down because hpop is defective and spreading medal through system. ford has inspected and said it is because of water in fuel, even though no warning lights or codes are available. ford pulled sensors out of engine and rejected repair because of tarnish on sensors. the only codes were for (low fuel pressure & reduced power). no other codes. initial inspection revealed about 3/4 inch of water in water separator but no light or code. the warnings occurred when truck was started and it ran about 100 ft before being shutdown and towed to dealership. this appears to be a common problem since ford offers a repair kit for this issue. total cost of repair is between $9500,00 & $12,500 dollars and this on a truck which is still under warranty that ford will not honor. the truck wasn't a year old until may 2016 and has been down for over four months because ford will not repair. this is the bosch c4 series pump. *bf *tr *dt consumer stated he had the truck repaired and he sold it. *jb