selling my ninety four g m c six point five turbo diesel.Because whenever something happens to it, I don't know how to fix it. The guy that worked on it all the time has cancer.So I have not a mechanic that knows anything about these. The ip, tank, filters ect. Replaced last year. Lots of nee stuff . Ran good 6 mos. then dies again after 20 mins. Not getting fuel from fuel filter. Whoever knows anything about these trucks can get it running and have a nice truck.I just don't have the time or the knowledge. Again, lift pump.I pay o p s fuel filters gas tank.I mean fuel tank all replaced. P d m relocated.I have an extra one in there too.That doesn't help when I break down.