Fuel Tank Check Valve Replacement

Fig. 29 Fuel Tank Check Valve Locations:

REMOVAL
Two fuel tank check valves are used. One of the valves is permanently mounted to top/rear of fuel tank (Fig. 29). If replacement of this particular valve is necessary, the fuel tank must be replaced. Refer to Fuel Tank Removal/Installation. The other check valve is located on top of the fuel pump module (Fig. 29). This valve may be serviced separately. Refer to following steps for procedures.

WARNING: THE FUEL SYSTEM IS UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF). BEFORE SERVICING THE CHECK VALVE(S), FUEL SYSTEM PRESSURE MUST BE RELEASED. REFER TO FUEL PRESSURE RELEASE PROCEDURE.

1. Disconnect negative battery cable at battery.
2. Remove fuel filler cap and drain fuel tank.
3. Remove fuel tank..
4. Disconnect tube (line) at valve.
5. The check valve is seated into a rubber grommet. Remove valve by prying one side upward and then roll valve out of grommet.
6. Discard old grommet.

INSTALLATION
1. Install new grommet into fuel pump module.
2. Using finger pressure only, press valve into place.
3. Install fuel tank.
4. Fill fuel tank. Install fuel tank filler cap.
5. Connect negative battery cable.
6. Start vehicle and check for leaks.