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I have a 1986 ford f350 crew cab dually that has been running like a champ untill both fuel pumps in both tanks went out at the same time. I replaced both and the relay for this prob. but the pumps come on for a few seconds and then shut off. can anyone help? please i need my work horse back on the road. oh yeah the fuel tank selector works fine i think
Last edited by jmurana; Jul 5, 2009 at 09:50 PM.
Reason: additions to thread
The fuel pump circuit gets power initially from the starter relay. After it starts, a oil pressure switch feeds power to the relay. If the relay is not kicking in to keep the fuel pumps running, I would suspect the oil pressure switch.
The fuel pump circuit gets power initially from the starter relay. After it starts, a oil pressure switch feeds power to the relay. If the relay is not kicking in to keep the fuel pumps running, I would suspect the oil pressure switch.
man thanks a bunch i will let you know if it works thanks again