1997 4.6 f150 fuel pump driver module problems

However, also includes disassembly instructions for interior trim panels and exterior items like headlights and tail lights. So you have to refer to the factory legends to learn the identification symbols and then refer back to circuit diagrams to find the splice and ground locations. , on the other hand, uses the factory diagrams. That saves a lot of time because you donвЂ™t have to refer back to the component locator or circuit locations. redraws factory wiring diagrams in color and includes the component, splice and ground locations right in their diagrams.

Pricing: - 1 month subscription $19.95 per vehicle 1-year subscription $29.95 per vehicle 4-year subscription $44.95 per vehicle - 1-year $29.95 subscription: additional vehicles $19/95 each 5-year $49.95 subscription: additional vehicles $34.95 each Which one should YOU choose? If youвЂ™re tracking down a wiring issue, is the better choice. In most cases, their diagrams are right from the factory manuals. They include wiring diagrams and technical service bulletins. Get the BEST auto repair information and are professional-grade shop manuals-period. Locate the high resistance or open and repair it. Then they splice into blue wires for the fuel injectors. The fuel pump circuit wires leaving the junction box are violet and green. You want to locate and repair any high resistance or open condition in this circuit that provides power to the injectors and fuel pump. If itвЂ™s still a no go, then youвЂ™ve got a wiring harness issue To diagnose the wiring harness Then check for fuel injector and fuel pump operation. Those are the two larger terminals in the relay socket. Remove the fuel pump relay and jumper across terminals 3 and 5. If the fuse is good and swapping the relay didnвЂ™t help, itвЂ™s time to dig in deeper. If that works, buy a new relay and call it a day. Then repeat the voltage check to the injectors on the blue wire.

If the fuse is good, find another rely in the junction box with the same id number and size and swap it with the fuel pump relay. If not, replace the fuse Swap the fuel pump relay If the fuse is good, move on to the next step. The fuse that powers the fuel injectors and fuel pump driver module is fuse #27, located in the battery junction box. If you donвЂ™t see battery voltage, go on to the next step. For battery voltage on any of the blue wires at any injector.

1997 4.6 f150 fuel pump driver module problems