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Re: 1999 Ford F-800 With Cummins 5.9 Encore ISB
Posted to HD/Fleet Forum on 11/18/2009 2 Replies

Kevin,

I had to juice up the pump with 12 Volts to get a pressure reading. 19 PSI engine off juiced with 12 volts.

I am trying to find the voltage drop to the lift pump and ECM. I think that is where the problem is. Login to read more.

2 Replies Received (View Replies)