Genuine Acura TL Coolant Temperature Sensor

Acura TL Coolant Temperature Sensor Parts Questions & Experts Answers

• Water Temperature Sensor
  37870-PNA-003
  Q: Where is the Coolant Temperature Sensor located and how to remove and install on an Acura TL?

  A:

  The ECT sensor for 2006 and earlier models, or ECT sensor 1 for 2007 and later models, is located on the coolant passage casting under the throttle body. Begin by removing the engine cover and draining the engine coolant, as failing to do so may result in coolant leaking from the crossover when the ECT sensor is removed; therefore, install the new sensor quickly. Disconnect the electrical connector from the ECT sensor, then unscrew the sensor with a wrench, noting that most deep sockets won't fit over it. If reusing the old ECT sensor, handle it carefully to avoid damage that could affect the PGM-FI system. Remove and discard the old O-ring, ensuring to use a new one during installation. The installation process is the reverse of removal, and it's important to tighten the ECT sensor to the specified torque while refilling the cooling system. For ECT sensor 2, located on the lower left rear side of the radiator in 2007 and later models, raise the front of the vehicle securely on jackstands and remove the engine splash shield. Drain the engine coolant to prevent leakage when removing the ECT sensor, then disconnect the electrical connector and unscrew the sensor with a wrench. Again, handle the old sensor with care if planning to reuse it, and remove and discard the old O-ring, installing a new one regardless of whether the old sensor is reused or a new one is installed. Follow the reverse process for installation, ensuring to tighten the ECT sensor to the specified torque and refill the cooling system.