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Home >> Hyundai >> 2024 >> Sonata N Line >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - 2.5T (Except HEV) >> Injector >> Repair Procedures >> Removal >> [GDI Injector]

[GDI Injector]

  1. Release the Residual Pressure in Fuel Line.

    (Refer to Fuel Delivery System - "RELEASE RESIDUAL PRESSURE IN FUEL LINE ")

  2. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
  3. Remove the engine cover.

    (Refer to Engine Mechanical System - "ENGINE COVER ")

  4. Remove the ignition coil connector (A).
  5. Remove the head foam (B).
    G16742825Courtesy of HYUNDAI MOTOR AMERICA
  6. Remove the high pressure pump foam (A).
    G16742826Courtesy of HYUNDAI MOTOR AMERICA
  7. Remove the air cleaner assembly.

    (Refer to Engine Mechanical System - "AIR CLEANER ")

  8. Remove the intercooler inlet hose.

    (Refer to Engine Mechanical System - "INTERCOOLER ")

  9. Remove the high pressure fuel pipe bracket installing bolt (A), and remove the flange nut (B).

    Tightening torque  :

    A: 9.8 - 11.7 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.6 lb-ft)

    B: 26.4 - 32.3 N.m (2.7 - 3.3 kgf.m, 19.5 - 23.8 lb-ft)

    G16742827Courtesy of HYUNDAI MOTOR AMERICA
  10. Remove the intake manifold.

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

  11. Disconnect the injector foam (A).
    G16742828Courtesy of HYUNDAI MOTOR AMERICA
  12. Remove the high pressure fuel pipe flange nut (A).
  13. After remove the installing bolt (B), remove the delivery pipe & injector assembly.

    Tightening torque 

    A: 26.4 - 32.3 N.m (2.7 - 3.3 kgf.m, 19.5 - 23.8 lb-ft)

    B: 18.6 - 23.5 N.m (1.9 - 2.4 kgf.m, 13.7 - 17.3 lb-ft)

    G16742829Courtesy of HYUNDAI MOTOR AMERICA
  14. Disconnect the injector & rail sensor connector (A).
    G16742830Courtesy of HYUNDAI MOTOR AMERICA
  15. Remove the injector from the fuel rail (A) after releasing the fixing clip both side as shown below.
    G16742831Courtesy of HYUNDAI MOTOR AMERICA