Engine Temperature Sensor (ETS)

Engine Temperature Sensor (ETS)

Description: An ETS/HTS typically measures temperatures up to 900 degrees C in the exhaust system of the vehicle. The sensing element of an ETS/HTS changes in resistance with changes in temperature. The engine computer measures the resistance and calculates the temperature.

Advantages of a good operating Engine Temperature Sensor (ETS)

  • Protect Expensive Engine and Exhaust Components.
  • Diagnose system with Diagnostic Trouble Codes (DTC).
  • Control System Operation (Regulate Exhaust Temperature)

Symptoms of Failure:

  • Check Engine Light On.
  • Poor fuel economy
  • engine overheating
  • black smoke coming from engine
  • Poor Vehicle Driveability
  • Surging

Recommended Service: Remove and clean with each tune-up. In most cases, failure to replace a defective ETS/HTS will result in an obstructed filter and possible engine damage. Always replace a defective sensor with a quality Walker Engine Temperature Sensor.


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