Fuel Pump Replacement

Fuel Pump Replacement (Cab/Chassis)

REMOVAL PROCEDURE




1. Loosen the fuel fill cap to relieve the fuel system pressure.
2. Disconnect the fuel pump electrical connector (1).
3. Raise and suitably support the vehicle. Refer to Vehicle Lifting.




4. Clean the fuel pipe connections and surrounding areas at the pump before disconnecting to avoid possible fuel system contamination.
5. Disconnect the fuel pipes from the pump.




6. Slide the pump out of the bracket.
7. Cap the fuel pipes.

INSTALLATION PROCEDURE




1. Remove the caps from the fuel pipes.
2. Install the NEW fuel pipe O-rings.
3. Position the new pump in the pump bracket.




4. Connect the fuel pipes to the fuel pump. Use a backup wrench to prevent the pump from turning.

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten
Tighten the fittings to 30 N.m (22 lb ft).

5. Lower the vehicle.




6. Connect the fuel pump electrical connector (1).
7. Install the fuel fill cap.