Fuel Tank: Testing and Inspection

INSPECTION

FUEL TANK SHUT-OFF VALVE CHECK




Check that the flapper of the fuel shut-off valve opens and closes as shown in the illustration.

FUEL TANK DIFFERENTIAL PRESSURE SENSOR CHECK

Required Special Tool:
- MB991658: Test Harness Set




1. Disconnect the fuel tank differential pressure sensor connector and connect special tool MB991658 between the terminals of the disconnected connector.

2. Turn the ignition switch to "ON" position and measure the voltage between terminal 1 and ground.

Standard value: 2.0 - 3.0 V

DISASSEMBLY AND ASSEMBLY

FUEL PUMP MODULE

Note: For the removal and installation procedures, refer to the fuel pump module replacement procedure in On-vehicle Service.






DISSASSEMBLY STEPS
1. FUEL LEVEL SENSOR
2. FUEL PUMP ASSEMBLY