Very few diesel mech's are going to attempt to rebuild an IP themselves. Too detailed and techincal when used or rebuilt pumps are avail. Pumps rarely go bad too, most common failure is when they openned up and messed with by those not knowing what they are doing. Something sounds fishy.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)