1986 Ford F150 V8 Four Wheel Drive Automatic
truck has two tanks, no power to fuel pump. Can the switch on dash that controls tanks cause the power not to go to pump. I can spray gas into air holes on plyem and truck will fire.I tried to straight wire pump, but truck wont fire like that. When I take off straight wire to pump and spray gas into intake it will fire. Will bad switches cause computer to give wrong single and cause it not to crank. What switches can cause the power not to go to pump. I know it has fuel cut off switch, and front and rear tank switch, and fuel pump relay on fender well. Need help please.
Wednesday, March 31st, 2010 AT 5:50 PM