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Home >> Hyundai >> 2016 >> Equus Signature >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel Delivery System >> High Pressure Fuel Pump >> Repair procedures >> Removal
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Repair procedures: Removal

WARNING: In case of removing the high pressure fuel pump, high pressure fuel pipe, delivery pipe, and injector, there may be injury caused by leakage of the high pressure fuel. So don't do any repair work right after engine stops.
  1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
  2. Release the residual pressure in fuel line (Refer to "RELEASE RESIDUAL PRESSURE IN FUEL LINE ").
    CAUTION: When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur.
    Delete the code with the GDS after completion of "Release Residual Pressure in Fuel Line" work.
  3. Remove the high pressure fuel pipe bracket installation bolt.

    (Refer to "INTAKE & EXHAUST SYSTEM ")

  4. Remove the intake manifold.

    (Refer to "INTAKE & EXHAUST SYSTEM ")

  5. Remove the pump foam (A).

    [Bank 1] 

    Fig 1: Pump Foam (Bank 1)
    G10382797Courtesy of HYUNDAI MOTOR AMERICA

    [Bank 2] 

    Fig 2: Pump Foam (Bank 2)
    G10382798Courtesy of HYUNDAI MOTOR AMERICA
  6. Remove the injector foam (A).
    Fig 3: Injector Foam
    G10382799Courtesy of HYUNDAI MOTOR AMERICA
  7. Disconnect the fuel feed tube quick-connector (A) with a clip removing tool.
    Fig 4: Fuel Feed Tube Quick-Connector
    G10382800Courtesy of HYUNDAI MOTOR AMERICA
    NOTE: Open the clamp cover (B) before disconnecting the quick-connector. (If the clip is applied)
    Fig 5: Clamp Cover
    G10382801Courtesy of HYUNDAI MOTOR AMERICA
    CAUTION: When removing the quick-connnector with the clip removing tool (A), be careful not to damage the plastic clip (B).
    If the clip is damaged, fuel line leak can be occurred due to a bad connection.
    Fig 6: Clip Removing Tool And Plastic Clip
    G10382802Courtesy of HYUNDAI MOTOR AMERICA
  8. Remove the installation high pressure fuel pipe flange nut (A) from the high pressure fuel pipe with the special service tool [SST No.: 09314-3Q100 or 09314-27130].
    Fig 7: Special Service Tool
    G10382803Courtesy of HYUNDAI MOTOR AMERICA
  9. Disconnect the fuel pressure regulator valve connector (B).
  10. Remove the installation bolts (C), and then remove the high pressure fuel pump from the cylinder head assembly.
CAUTION: Unscrew in turn the two bolts in small step (0.5 turns). In case of fully unscrewing one of the two bolts with the other bolt installed, the housing surface of the cylinder head may be broken because of tension of the pump spring.
Fig 8: High Pressure Fuel Pipe Flange Nut, Fuel Pressure Regulator Valve Connector And Installation Bolts
G10382804Courtesy of HYUNDAI MOTOR AMERICA
Fig 9: High Pressure Fuel Pipe Flange Nut, Fuel Pressure Regulator Valve Connector And Installation Bolts
G10382805Courtesy of HYUNDAI MOTOR AMERICA
Fig 10: High Pressure Fuel Pipe Flange Nut
G10382806Courtesy of HYUNDAI MOTOR AMERICA