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hpop not holding pressure

  1. hpop / lpop or neither ?

    Diesel Diagnostics
    Hello Everyone I need some help. I had a perfectly running truck with an oil leak. I pulled the motor and put it back in with some help from others as well. I have a 1994.5 ford f-350 5 speed 7.3 turbo diesel. We didn't change anything and I feel it was a pretty simple put back together project...
  2. 03 - 6.0 hpop system wont hold pressure after new pump, fittings etc arrrrrrrrrrrgh!!

    6.0 Motor problems
    is this normal, i'm ready to pull my hair HELP!!!! any suggestions.... i replaced the hpop, stand pipes, connector pipe, rebuilt oil rails and bought this tool 6.0L High Pressure Oil System IPR Air Test Tool to test for leaks ... and it's driving me nuts trying to figure out why it's not...
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