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
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.