Fuel Tank Unit: Service and Repair

Fig. 1 Top View Fuel Pump Module - Gas Powered Engines - Typical:

Fig. 2 Fuel Pump Module Components - Gas Powered Engines - Typical:

WARNING: The fuel system is under a constant pressure (even with the engine off). Before servicing the fuel pump module, the fuel system pressure must be released.

1. Drain and remove fuel tank.
- Refer to Fuel Tank Removal/Installation.

Fig. 24 Locknut Removal/Installation - Typical:

2. The plastic fuel pump module locknut is threaded onto fuel tank.
- Install Special Tool 6856 to locknut and remove locknut.
- The fuel pump module will spring up when locknut is removed.
3. Remove module from fuel tank.

CAUTION: Whenever the fuel pump module is serviced, the rubber gasket must be replaced.

INSTALLATION
1. Using a new gasket position fuel pump module into opening in fuel tank.
2. Position locknut over top of fuel pump module. Install locknut finger tight.
3. Rotate module until positioned as shown.
- This step must be performed to prevent float from contacting side of fuel tank.
- Be sure fuel filter/fuel pressure regulator is pointed to drivers side of vehicle.
4. Install Special Tool 65-56 to locknut.
5. Tighten locknut to 24-44 N.m ( 18-32 ft. lbs) torque.
6. Install fuel tank.
- Refer to Fuel Tank Removal/Installation.