IFS switch is located under instrument panel, near right side of transmission hump. Fuel system should be inspected before resetting switch.
If electrical circuit trips, vehicle will not restart until switch is reset. Fuel supply is interrupted even when engine is running.Ī reset button is located on switch assembly. During a collision or vehicle rollover, electrical contacts within inertia switch open, shutting off fuel supply to electric fuel pump. Fuel pump receives power through fuel pump relay contacts.Īll models use an electrical interrupt switch in fuel system. Power is provided to fuel pump relay and timer in PCM. When ignition switch is in ON position, EEC power relay is energized (contacts closed). PCM senses engine speed and shuts off fuel pump by opening ground circuit to fuel pump relay when engine stops or engine speed drops to less than 120 RPM. When ignition switch is turned to START position, PCM operates fuel pump relay to provide fuel for starting engine. It is below the dash but above the carpet in the right hand corner. The fuel pump inertia switch is in the right front passenger area
The fuel pump relay on a 1995 Ford Explorer is in the power distributionīox, in the engine compartment, driver's side near the firewall. Then with 12 volt external battery give power to fuel pump connector and see, if the fuel pump starts, then its clear that fuel pump relay is faulty.- Also other problem can be fuel pump inertia switch.If the inertia switch is faulty then also fuel pump will not start. To reconfirm the problem, try other test, that is remove the relay and by pass the relay terminals with a jumper wire. First thing get voltage at fuel pump relay checked, is there 12 volt to the relay.If no, then problem is again the relay. No noise from fuel pump when you turn over the car.