Rollover Valve: Service and Repair

REMOVAL

WARNING: THE FUEL SYSTEM IS UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF). BEFORE SERVICING THE ROLLOVER VALVES FUEL SYSTEM PRESSURE MUST BE RELEASED (GASOLINE POWERED ENGINES ONLY).

Fig. 19 Rollover Valve Location - Diesel:

One rollover valve is used. The valve is located on top of fuel tank module (Fig. 19) and may be serviced separately.

1. Disconnect both negative battery cables at both batteries.
2. Remove fuel filler cap and drain fuel tank.
3. Remove fuel tank.
4. The rollover valve is seated into a rubber grommet. Remove valve by prying one side upward and then roll valve out of grommet.
5. Discard old grommet.

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