2017 Kia Optima SXFACTORY OEM SERVICE PROCEDURE

Repair Procedures: Removal

  1. Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
  2. Remove the air cleaner.

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

  3. Remove the battery.

    (Refer to Engine Electrical System - "BATTERY ")

  4. Disconnect the crankshaft position sensor connector (A).
    Fig 1: Disconnecting Crankshaft Position Sensor Connector
    G12145707Courtesy of KIA MOTORS AMERICA, INC.
  5. Lift the vehicle.
  6. Remove the engine room under cover.

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

  7. Remove the protector (B) after loosening the mounting bolts (A).

    Crankshaft position sensor protector mounting bolt (M6): 

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

    Fig 2: Removing Crankshaft Position Sensor Protector Mounting Bolt
    G12145708Courtesy of KIA MOTORS AMERICA, INC.
  8. Remove the crankshaft position sensor (B) after loosening the mounting bolt (A).

    Crankshaft position sensor mounting bolt: 

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

    Fig 3: Removing Crankshaft Position Sensor
    G12145709Courtesy of KIA MOTORS AMERICA, INC.
Factory Service Tools

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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.