Fuel Pump: Testing and Inspection

Fuel System Pressure Test





WARNING: Do not smoke, carry lighted tobacco or have an open flame of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.

WARNING: Do not carry personal electronic devices such as cell phones, pagers or audio equipment of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.

WARNING: Before working on or disconnecting any of the fuel tubes or fuel system components, relieve the fuel system pressure to prevent accidental spraying of fuel. Fuel in the fuel system remains under high pressure, even when the engine is not running. Failure to follow this instruction may result in serious personal injury.

WARNING: When handling fuel, always observe fuel handling precautions and be prepared in the event of fuel spillage. Spilled fuel may be ignited by hot vehicle components or other ignition sources. Failure to follow these instructions may result in serious personal injury.

WARNING: Always disconnect the battery ground cable at the battery when working on an evaporative emission (EVAP) system or fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.

NOTE: Refer to Description and Operation, Intelligent Access with Push Button Start in Antitheft and Alarm Systems to review the procedures for achieving the various ignition states (ignition OFF, ignition in ACCESSORY, ignition ON and ignition START) on vehicles with this feature.

1. Release the fuel system pressure. For additional information, refer to Fuel System Pressure Release Service and Repair.

2. Disconnect the battery ground cable. For additional information, refer to Battery.

3. Disconnect the fuel tube-to-fuel rail jumper tube quick connect coupling. For additional information, refer to Quick Connect Coupling Service and Repair.

4. Install the Fuel Pressure Test Adapter and the Fuel Pressure Test Kit between the fuel tube and the fuel rail.





5. NOTE: The Fuel Pump (FP) control module electrical connector was previously disconnected to release the fuel system pressure and must be reconnected to test the fuel system pressure.

Connect the FP control module electrical connector.





6. Connect the battery ground cable. For additional information, refer to Battery.

7. NOTE: Carry out a ignition ON engine OFF visual inspection for fuel leaks prior to completing the fuel system pressure test.

NOTE: After completing the fuel system pressure test, open the drain valve and release any residual fuel into a suitable container prior to removing the Fuel Pressure Test Kit and the Fuel Pressure Test Adapter.

Test the fuel system pressure to make sure it is within the specified range. For additional information, refer to Specifications.