Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Lincoln >> 2020 >> MKZ Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Fuel System - General Information - 3.0L ECOBOOST) >> General Procedures >> Fuel System Pressure Check

Fuel System Pressure Check

WARNING: This page is about a different variant/trim than selected.

For information on Ford Color Coded Illustrations refer to OEM Color Coding .

Special Tool(s) / General Equipment 

GFD379087Courtesy of FORD MOTOR COMPANY
310-D009 (D95L-7211-A)Fuel Pressure Test Kit

Check 

WARNING: Before beginning any service procedure in this service information, refer to Gasoline and Gasoline-Ethanol Fuel Systems Health and Safety Precautions . Failure to follow this instruction may result in serious personal injury.
NOTE: This pressure check is for the low pressure side of the fuel system.
  1. Remove the nut and remove the engine appearance cover.
    GFD377544Courtesy of FORD MOTOR COMPANY
  2. Release the fuel system pressure. Refer to: Fuel System Pressure Release .
  3. Disconnect the battery ground cable. Refer to: Battery Disconnect and Connect .
    1. Detach the tube and position from the upper air cleaner outlet pipe.
    2. Loosen the clamps and remove the upper air cleaner outlet pipe.
    GFD378379Courtesy of FORD MOTOR COMPANY
  4. Disconnect the fuel jumper tube-to-high pressure pump quick release coupling. Refer to: Quick Release Coupling .
  5. Install the Fuel Pressure Test Kit between the fuel jumper tube and the fuel tube. Use Special Service Tool: 310-D009 (D95L-7211-A) Fuel Pressure Test Kit.
    GFD379114Courtesy of FORD MOTOR COMPANY
  6. NOTE: The FPDM electrical connector was previously disconnected to release the fuel system pressure and must be reconnected to test the fuel system pressure.

    Reconnect the FPDM electrical connector.

  7. Connect the battery ground cable. Refer to: Battery Disconnect and Connect .
  8. NOTE: Carry out a Key ON Engine OFF (KOEO) visual inspection for fuel leaks prior to completing the fuel system pressure test.
    NOTE: After completion of the fuel system pressure test, open the drain valve on the Fuel Pressure Test Kit and release any residual fuel into a suitable container prior to removing the tool.

    Test the fuel system pressure to make sure it is within the specified range. Refer to: Specifications .