Fuel Pump: Testing and Inspection

Before performing this test, verify fuel pump pressure by performing the Fuel Pump Pressure Test.

1. Release the fuel system pressure from fuel system. Refer to Fuel Pressure Release Procedure.

2. Disconnect the fuel supply line at fuel rail near pressure regulator.

3. Connect Fuel Line (Tube) Pressure Test Adapter Tool number 6631 (3/8 in.) into the disconnected fuel supply line (tube). Insert the other end of Adapter Tool 6631 into an approved gasoline container.

4. Using the DRB II or an equivalent scan tool, activate the fuel pump and pressurize the fuel system. Refer to the scan tool manufacturers service manual for scan tool operation.

5. A good fuel pump will deliver approximately 1 liter of fuel per minute.