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Message: [QUOTE="f350guy, post: 1380519, member: 11669"] I bought my truck new in 2009 and have maintained it like the prima donna it is... (well most new Diesel trucks are that) all recommended services at the dealer for no excuses warranty repairs and my own split at those for fuel filters and oil changes. Four gallons of Redline, oil filter, and fuel filters make my annual service about $260 with me doing it. If that guy selling it takes great care of it, he will have stacks of records. Plain and simple. If there are no records, I would walk from it. Not sure what causes the HPFP to poop on these, perhaps water and lack of filter services. I have seen some external lift pump setups with fuel bowl removed that prevent killing the injectors if the HPFP dies. Something to really consider adding. If I knew exactly which to recommend, I would tell you. This is probably my next upgrade, even before traction bars. Lifters seem to die from fuel dilution of the oil best I can gather, due to regen and insufficient oil change intervals. A sponsor here sells upgraded ones. Pistons are hit and miss. From readings it seems overheating them then rapid cooling helps them split, not always but seems to be a big cause. When I was running a 'Hot Street' tune from one of the tuners (dynos 525-550 I think) that got a bit toasty on the top end around 1500°F with stock turbochargers. Said screw it and went back to 'Street' that peaks around 1250°F, that is fine for me. Under warranty I had an EGR cooler fail and an oil leak fixed. Something was with the HPFP, harness I think, would have to check records. Oh, and a belt tensioner **** the bed around 66k. I think that is about it. Factory shocks are garbage as is the factory Traclok. [/QUOTE]