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Re: 1998 DT466E runs rough no power
Posted to HD/Fleet Forum on 1/6/2011

Tyson, If the HPOP reservoir is going empty over a couple of days then you need a HPOP. There is a check valve inside the pump that is not serviceable that has failed. Regardless of anything else right now, you need a pump. Also, remember that the first 3 cyli... Login to read more.