Install Special Tool 6856 to fuel pump module locknut and remove locknut (Fig. (5) The plastic fuel pump module locknut is threaded onto fuel tank (Fig. Refer to Quick-Connect Fittings for procedures. (4) Disconnect fuel return and pressure lines from fuel pump module fittings (Fig. (3) Thoroughly wash and clean area around pump module to prevent contaminants from entering tank. (1) Perform Fuel System Pressure Release Procedure. BEFORE SERVICING FUEL PUMP MODULE, FUEL SYSTEM PRESSURE MUST BE RELEASED. WARNING: THE FUEL SYSTEM IS UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF). Refer to Fuel Pump, Fuel Filter/Fuel Pressure Regulator and Fuel Gauge Sending Unit.įuel tank removal will be necessary for fuel pump module removal. If the electrical fuel pump requires service, the entire fuel pump module must be replaced. The fuel gauge sending unit and pick-up filter may be serviced separately. Fuel gauge sending unit (fuel level sensor).A gasket between tank flange and module.A threaded locknut to retain module to tank.A separate fuel pick-up filter (strainer).There's plenty of room for the factory single exhaust, and the rear axle is miles away from the back of the tank, so if we ever do get a wild itch to add 1-ton axles or huge dual exhaust in this Jeep we know we won't have to make fuel tank modifications to accomplish it.The fuel pump module (Fig. But until then, we have the tank up and held in place with four of the eight mounting holes, and we're pleased to say the fit is perfect with no interference at the bottom of the floor.
We'll have to drop the tank one more time to finish hooking up our fuel system after the engine swap begins, so we're going to wait until that time to hook up the filler and vent as well as welding the nuts to the inside of the frame to make install and removal much easier.
Then, we pulled the tank back out and finished drilling the holes and then bolted the tank back in. Once it was up tight into place, we measured each side to make sure the tank was centered side to side and from the rear crossmember and then drilled eight small pilot holes through the frame at the center of each tank bracket.
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