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Message: [QUOTE="1jb35, post: 1548837, member: 33069"] 08 6.4, ******d, ARP head studs, H&S mini maxx....here is the issue: For example: a 12mile trip will result in a crank no start issue with a fuel rail pressure of .3ksi. When it does start the FRP is 4.8 - 5.0 ksi. Shorter trips, 2-3 mi, it will usually start back but not always. The no start ranges from 15 minutes to 10 hours before it decides to start from my experience. Fuel pump is operating normally and no air in fuel. While driving there is no change in the performance of the truck. Although it does throw 3 codes on a no start but only one at a time and any given day they may differ, P0001, P0090 and P0087. I have noticed that when the key is turned to the run position I typically hear whatever cycles under the hood and the fuel pump and it starts right up ( i dont know what all cycles when the key is in the run position). I can predict a no start because i only hear the fuel pump with the key in run and sure enough, a no start. Any suggestions/recommendations would be appreciated. Thanks in advance [/QUOTE]

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