An engine temperature sensor, or coolant temperature sensor, is an electronic device that measures the temperature of an engine’s coolant. This information is then sent to the engine’s computer, which uses it to adjust the engine’s performance. A faulty engine temperature sensor can lead to a variety of problems, including engine overheating or damage, as well as decreased fuel efficiency. Testing an engine temperature sensor is a relatively simple procedure that can be performed at home with a few basic tools. First, locate the sensor, which is typically located near the engine’s thermostat. Once you have located the sensor, disconnect the electrical connector and remove the sensor from the engine. Next, connect a multimeter to the sensor’s terminals. The multimeter should be set to the ohms setting. If the sensor is functioning properly, the multimeter will display a reading of between 200 and 300 ohms. If the sensor is not functioning properly, the multimeter will display a reading of infinity. If you are unsure how to test an engine temperature sensor, you can always consult a qualified mechanic. Replacing a faulty engine temperature sensor is a relatively inexpensive and easy repair that can help to prevent serious engine damage.
1. Locate
Locating the engine temperature sensor is the first step in testing it. The sensor is typically located near the engine’s thermostat, which is responsible for regulating the engine’s temperature. By knowing the location of the sensor, you can quickly and easily access it for testing.
