2012 Kia Optima L4-2.4LFACTORY OEM SERVICE PROCEDURE

Crankshaft Position Sensor: Service and Repair





Inspection

1. Check the signal waveform of the CMPS and CKPS using the GDS.

Specification:Refer to "Wave Form" Testing and Inspection

Removal

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Disconnect the crankshaft position sensor connector (A).

Factory service manual diagram



3. Remove the protector (A).

Factory service manual diagram



4. Remove the installation bolt (A), and then remove the crankshaft position sensor.

Factory service manual diagram





Installation

CAUTION:
- Install the component with the specified torques.
- Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing.

CAUTION:
- Apply the engine oil to the O-ring.

CAUTION:
- Insert the sensor in the installation hole and be careful not to damage.

1. Installation is reverse of removal.

Crankshaft position sensor installation bolt:9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)
Crankshaft position sensor protector installation bolt (M6):9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)
Crankshaft position sensor protector installation bolt (M8):18.6 - 23.5 N.m (1.9 - 2.4 kgf.m, 13.7 - 17.4 lb-ft)

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

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

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

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