F150 fuel pump wiring harness install / Spectra fuel pump Click to view on Bing8:02Installing Spectra fuel pump on 80's - 96 f150. Cutting stock wiring harness and re wiring the different colored wire positions. Hope this helps somebody out there, thanks for watching. :) Sorry it was filmed sloppy and Author: Brian EalyViews: 66K 1997 Ford F250 Fuel Pump Wiring Diagram | Diagram Visit the post for more. Ford wiring diagram radio striking diesel trailer headlight 1997 f350 fuel pump brake light 7 3 1280 outstanding 1999 ford f150 fuel pump wiring diagram ideas best 0900c15280072a4a on 89 ford f150 fuel pump wiring diagram 1990 ford f250 fuel pump wiring diagram globalfunds club Ford 1997 f250 fuel pump relay diagram - Fixya The fuel pump relay is in a junction box under the hood. The junction box you are looking for is the one closest of the two to the fender and of the three relays in there the relay closest to the fender is the fuel pump relay. Also, here is a diagram of the fuel pump fuse. #40 - 20 Amp fuse.