Where is the coolant temperature sending unit located?
The ECT sensor is located near the engine thermostat, which calculates the temperature within the engine. The engine coolant temperature sensor measures the temperature provided by the thermostat and the coolant.
How do I know if my temp sending unit is bad?
What Signs May Signal Your Coolant Temperature Sensor May Be Failing?
- Poor Fuel Economy.
- Irregular Temperature Readings.
- Black Smoke from Your Exhaust.
- Your Engine is Overheating.
- Your Check Engine Light is On.
How do you check an engine temperature sending unit?
How to Test a Temperature Sending Unit
- Disconnect the connector from the coolant temperature sensor (temperature sending unit).
- Reconnect the connector to the sensor.
- Disconnect the connector from the sensor again.
- Determine the difference in the two readings.
How does a water temperature sending unit work?
The sending unit is a temperature-sensitive material that is part of a variable resistance, water-sealed unit that sits in the coolant stream in the engine. As the engine warms up the resistance in the sending unit is lowered gradually until the system reaches maximum heat.
Where is the coolant temperature sensor located on a Toyota Tacoma?
The coolant temperature sensor on a Toyota Tacoma produced between 1995 and 2005 is located under the hood. To reach the sensor, simply open the hood and look in the rear engine area. The sensor is mounted to the engine block, just above the transmission bellhousing.
How can I Check my coolant temperature sensor?
Inspect the coolant temperature sensor by visually checking the wires attached to the sensor. Ensure the wires are secured properly and free of corrosion. Problems with the coolant temperature sensor are commonly in the wiring and not the sensor itself.
Where are the ECT sensors on a Toyota Tacoma?
There are two sensors for ECT on most Toyota trucks. One will have either a single wire, while the other will have 2 or 3 wires (depending on the model and year). The one with 2 or 3 wires goes to your ECU and is used for engine management.