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. 20 Rollover Valve Locations - Gas Powered With 26 Or 34 Gallon Tank:

If equipped with a 26 or 34 gallon fuel tank, two rollover valves are used. One of the valves is permanently mounted to top of fuel tank (Fig. 20). If replacement of this particular valve is necessary, fuel tank must be replaced. The other rollover valve is located on top of fuel pump module (Fig. 20). This valve may be serviced separately. Refer to following steps for procedures.

Fig. 21 Rollover Valve Locations - Gas Powered With 35 Gallon Tank:

If equipped with a 35 gallon fuel tank, two rollover valves are also used, but both valves are permanently mounted to top of fuel tank (Fig. 21). If replacement is necessary, fuel tank must be replaced.

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 rollover 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 (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.