Fuel Pump: Testing and Inspection

FUEL PUMP OPERATION




1. Connect data link connector terminals FUEL PUMP and B+ with jumper wire.

2. Remove fuel filler cap.
3. Turn ignition switch "ON".
4. Determine if fuel pump is running by listening for sound of it at fuel filler inlet.

5. Connect negative battery terminal.

WARNING: The fuel system remains under pressure when the engine is not running. Release fuel system pressure before disconnecting any fuel line to reduce the chance of personal injury or fire damage to vehicle components.

6. Connect data link connect terminals FUEL PUMP and B+ with jumper wire.
7. Turn ignition switch ON.




8. Measure fuel pump maximum pressure.

Fuel pump maximum pressure: 65 - 94 psi (450 - 650 kPa, 4.5 - 6.5 kg-m)

9. If not within specification, replace fuel delivery module.