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Home >> Hyundai >> 2021 >> Sonata Limited >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transaxle Control System - 1.6L (Except HEV) >> Speed Sensor >> Repair Procedures >> Removal
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Repair Procedures: Removal

CAUTION:
  • When the solenoid valve Diagnostic Trouble Codes (DTC) is on, perform the following procedure to replace it.
  • Automatic transaxle is composed of delicate components. Be careful not to cause any damage on the component in the course of assembly and disassembly.
  • Maintain clean condition so that foreign substance does not get into the automatic transaxle.
  • Use a coated apron, latex gloves, and stainless tray to prevent foreign substance from getting into the transaxle.
  • Automatic transaxle fluid (ATF) can be reused. Collect it using a clean 10-liter beaker.
  1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
  2. Remove the air duct (A).
    G14626336Courtesy of HYUNDAI MOTOR AMERICA
  3. Remove the air cleaner assembly.
    1. Disconnect the Mass Air Flow Sensor (MAFS) connector (A).
    2. Separate the bleeder hose (B).
    3. Separate the intake hose (C).
    4. Remove the air cleaner assembly (D).

      Tightening torque: 

      Intake hose clamp: 2.9 - 4.9 N.m (0.3 - 0.5 kgf.m, 2.2 - 3.6 lb-ft)

      Air cleaner mounting bolt: 7.8 - 9.8 N.m (0.8 - 1.0 kgf.m, 5.8 - 7.2 lb-ft)

      G14626337Courtesy of HYUNDAI MOTOR AMERICA
  4. Loosen the bolt and then removing the wiring bracket (A).
    G14626338Courtesy of HYUNDAI MOTOR AMERICA
  5. Remove the under cover (A).
    G14626339Courtesy of HYUNDAI MOTOR AMERICA
  6. Loosen the drain plug (A) and then drain the coolant. [case by apply ATF warmer]
    G14626340Courtesy of HYUNDAI MOTOR AMERICA
  7. Remove the drain plug (A) and reinstall the drain plug after draining ATF totally.

    Drain plug tightening torque: 

    33.3 - 43.1 N.m (3.4 - 4.4 kgf.m, 24.6 - 31.8 lb-ft)

    G14626341Courtesy of HYUNDAI MOTOR AMERICA
    CAUTION:
    • Replace the gasket before reinstalling the drain plug.
  8. Remove the ATF warmer.

    (Refer to Automatic Transaxle Cooling System - "ATF WARMER ")

  9. Loosen the mounting bolts (A) of the valve body cover.

    Tightening torque: 

    11.8 - 13.7 N.m (1.2 - 1.4 kgf.m, 8.7 - 10.1 lb-ft)

    G14626342Courtesy of HYUNDAI MOTOR AMERICA
    CAUTION:
    • Be careful when removing the valve body cover because the remaining ATF remains in the valve body cover.
    CAUTION:
    • Replace the gasket (A) before reinstalling the valve body cover.
    • After the installation, start the engine and then check if there are any leakages from the valve body cover.
    G14626343Courtesy of HYUNDAI MOTOR AMERICA
  10. Loosen the bolts and then removing the main harness (A).

    Tightening torque: 

    9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

    G14626344Courtesy of HYUNDAI MOTOR AMERICA
  11. Loosen the bolts and then removing the valve body assembly (A).

    Tightening torque: 

    1. 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)
    G14626345Courtesy of HYUNDAI MOTOR AMERICA
    CAUTION:
    • Attach the manual pin (B) to the detent lever (A) and assemble the valve body.
    G14626346Courtesy of HYUNDAI MOTOR AMERICA
  12. Disconnect the speed sensor connector (A).
    G14626347Courtesy of HYUNDAI MOTOR AMERICA
  13. Remove the speed sensor (A) after loosening the bolts.

    Tightening torque: 

    9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

    G14626348Courtesy of HYUNDAI MOTOR AMERICA
    G14626349Courtesy of HYUNDAI MOTOR AMERICA