Engine Coolant Temperature Sensor
Inspection INSPECTION PROCEDURE
1. INSPECT ENGINE COOLANT TEMPERATURE SENSOR
(a) Partially immerse the engine coolant temperature sensor in water and warm up the water.
(b) Measure the resistance according to the value(s) in the table below. Text in Illustration
Standard Resistance:
NOTICE: When checking the engine coolant temperature sensor in water, keep the terminals dry. After the check, wipe the sensor dry. If the result is not as specified, replace the engine coolant temperature sensor. |
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1. INSTALL ENGINE COOLANT TEMPERATURE SENSOR
HINT:
Perform "Inspection After Repair" after replacing the engine coolant temperature sensor (See page
).
(a) Apply a light coat of engine coolant to the O-ring of the engine coolant temperature sensor.
NOTICE:
- When reusing the engine coolant temperature sensor, inspect the O-ring.
- Make sure that the O-ring is not cracked or jammed when installing it on the rear water by-pass joint.
- Replace with a new part if it is dropped or if it receives a strong impact.
(b) Install the engine coolant temperature sensor to the rear water by-pass joint with the clip.
(c) Connect the connector to the engine coolant temperature sensor.
2. INSTALL INTAKE MANIFOLD
(See page
)
1. REMOVE INTAKE MANIFOLD
(See page
)
2. REMOVE ENGINE COOLANT TEMPERATURE SENSOR
(a) Disconnect the connector from the engine coolant temperature sensor.
(b) Remove the clip and engine coolant temperature sensor from the rear water by-pass joint. |
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Test yourself
A quick Toyota Tacoma quiz: every answer comes with an explanation and a link to the manual page.

