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Home >> Hyundai >> 2017 >> Azera Base >> 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 Fuel Delivery System - "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 pump foam (A).
    Fig 1: Removing Pump Foam
    G12088646Courtesy of HYUNDAI MOTOR AMERICA
  4. Disconnect the fuel pressure control valve connector (A) and the fuel feed tube quick-connector (B).
    Fig 2: Disconnecting Fuel Pressure Control Valve Connector And Fuel Feed Tube Quick-Connector
    G12088647Courtesy of HYUNDAI MOTOR AMERICA
  5. Remove the intake manifold.

    (Refer to Engine Mechanical System - "INTAKE MANIFOLD ")

  6. Remove the injector foam (A).
    Fig 3: Removing Injector Foam
    G12088648Courtesy of HYUNDAI MOTOR AMERICA
  7. Remove the high pressure fuel pipe.
    1. Remove the high pressure pipe flange nut in order of A, B with the special service tool [SST No.: 09314-3V100]
      Fig 4: Special Service Tool (09314-3V100)
      G12088649Courtesy of HYUNDAI MOTOR AMERICA
      Fig 5: Removing High Pressure Pipe Flange Nut (1 Of 2)
      G12088650Courtesy of HYUNDAI MOTOR AMERICA
      Fig 6: Removing High Pressure Pipe Flange Nut (2 Of 2)
      G12088651Courtesy of HYUNDAI MOTOR AMERICA
    2. Remove the high pressure pipe bracket bolt (A).
      Fig 7: Removing High Pressure Pipe Bracket Bolt
      G12088652Courtesy of HYUNDAI MOTOR AMERICA
    3. Remove the function block installation bolt (A).
      Fig 8: Removing Function Block Installation Bolt
      G12088653Courtesy of HYUNDAI MOTOR AMERICA
  8. Remove the installation bolts (A), and then remove the high pressure fuel pump (B) 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 9: Removing High Pressure Fuel Pump From Cylinder Head Assembly
    G12088654Courtesy of HYUNDAI MOTOR AMERICA