Engine Control System/Fuel System

Engine Coolant Temperature Sensor (ECTS) Repair Procedures

9steps
~54min
2/5difficulty
02040608010039.229N·mlb·ft
Tightening torque found on this page
Done 0 of 9

Inspection

  1. Turn the ignition off.
  2. Disconnect the ECTS connector.
  3. Remove the ECTS.
  4. After immersing the sensor thermistor in engine coolant, measure the resistance between terminals 1 and 3 of the ECTS.
  5. Make sure the resistance is within specification.

    Specification: Refer to "Specifications"

Removal

  1. Turn the ignition switch OFF and disconnect the negative (-) battery cable.
  2. Disconnect the engine coolant temperature sensor connector (A).
  3. Remove the sensor (B).
    • Be aware that engine coolant may leak from the water temperature control unit when the sensor is removed.
  4. Refill the engine coolant. (Refer to Engine Mechanical System - "Engine Coolant")

Installation

  • Install the component with the specified torque.
  • Be aware that internal damage may occur if the component is dropped.
  • Apply engine coolant to the O-ring.
  • Insert the sensor into the installation hole, being careful not to damage it.
  1. Installation is the reverse of removal. Engine coolant temperature sensor: 29.4 ~ 39 N·m

Test yourself

A quick Hyundai Elantra AD quiz: every answer comes with an explanation and a link to the manual page.