V8 Level II
Joined: Tue Dec 5th, 2017
Reputation Points: 843
|Here's something that should be checked whenever there is a mystery electrical problem in the rear half of any 2000~2003 Ranger.
Underneath the truck, directly below the driver seat, there is a large electrical connector held by a captive bolt with a 10mm hex. Loosen the bolt from below, open the connector and look inside for water and/or corroded pins.
This connector lives in a hostile environment and serves everything to the rear of the cab: rear lamps, fuel pump assembly, evap controls and rear axle sensor. It can potentially be the source of open circuits, intermittent open circuits or unintended current flow between circuits. Even if you don't find any existing problems, it is a good idea to repack with dielectric grease before reassembly. This should be a preventive maintenance item on any 2000~2003 Ranger.
2003 FX4 Level II, Supercharged 5.0L V8, Headers, Duals, BW4406 manual T/C
Aussie Locker, Torsen L/S, 4.10's, Bilstein 7100 rezzies, Cadillac/Mustang rear discs, Duff traction bars
Keypad Entry, Lock LEDs, sway bar discos, Heated seats, Explorer EATC, Trip Computer and consoles
2016 C-MAX Energi (plug-in Hybrid)
2011 Taurus SEL (highway cruiser)
2003 Ranger 2.3L M5ODR1 Regular Cab (drudge)