1993 Explorer replaced six fuel pumps in 6 months

Jun 23, 2009

- Have anyone adjusted the fuel pump pressure? In each case the fuel pump was proven to be burned out? There is an inertia disconnect switch which is suppose to kill the power to the pump, but it should not send higher voltage and I imagine it was never tripped. Here is the last thing I can think of. Disconnect the wires going to the pump. Find the hot wire on the harness and try it with the ignition both on and off. See if it does cut off first. Then pull the fuse for the pump. See if it has power. It should not. If it does have power start pulling fuses until it does not. When you find the second power feed you will identify the crossed wiring.