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HOMESERVICE MANUALSHYUNDAI2014SONATA HYBRID BASEREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSAXLE CONTROL SYSTEM (HEV)TRANSAXLE OIL TEMPERATURE SENSORREPAIR PROCEDURESREMOVAL
2014 Hyundai Sonata Hybrid Base

Repair Procedures: Removal

2014 Hyundai Sonata Hybrid BaseSECTION Removal
  1. Air cleaner assembly and air duct.

    (Refer to "INTAKE AND EXHAUST SYSTEM " )

  2. Remove the Hybrid Power Control Unit (HPCU) assembly.

    (Refer to "HYBRID CONTROL SYSTEM " )

  3. Remove the under cover (A).

    Tightening torque: 

    7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)

    Fig 1: Identifying Under Cover
    G07317873Courtesy of HYUNDAI MOTOR CO.
  4. Remove the ATF warmer.

    (Refer to "AUTOMATIC TRANSAXLE HYDRAULIC SYSTEM " )

  5. Remove the AT tube (A) after removing eye bolt (B).

    Tightening torque: 

    42 ~ 48 N.m (4.3 ~ 4.9 kgf.m, 31.1 ~ 31.4 lb-ft)

    Fig 2: Identifying AT Tube And Eye Bolt
    G07317874Courtesy of HYUNDAI MOTOR CO.
  6. Replace new gasket and the plug after draining the automatic transaxle fluid by removing the drain plug. (Refer to "AUTOMATIC TRANSAXLE HYDRAULIC SYSTEM " )
  7. Remove the valve body cover (A) and breather hose clip (B).

    Tightening torque: 

    (A) 13.8 ~ 15.7 N.m (1.4 ~ 1.6 kgf.m, 10.1 ~ 11.6 lb-ft)

    Fig 3: Identifying Valve Body Cover And Breather Hose Clip
    G07317875Courtesy of HYUNDAI MOTOR CO.
  8. Disconnect the oil temperature sensor connector (A).
    Fig 4: Identifying Oil Temperature Sensor Connector
    G07317876Courtesy of HYUNDAI MOTOR CO.
  9. Remove the oil temperature sensor (A) after removing a bolt.

    Tightening torque: 

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

    CAUTION: Be careful not to damage the harness lock connector.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.