Isuzu Engine 4JJ1 Euro 4 N Series Coolant Temperature Sensor

 This article is to introduce how to remove isuzu engine 4JJ1 Euro 4 N Series coolant temperature sensor

 

Isuzu E-IDSS Diagnostic Service System [03.2021]

Removal
1. Disconnect wiring connector.
2. Remove the engine coolant temperature sensor.
Inspection This engine coolant temperature sensor is a thermistor type whose characteristics are that the electrical resistance decreases as the temperature rises.
An ECM thermistor (2) is installed between(1) and(3).

1.Place the temperature sensor section of the sensor into water.Inspect whether the changes inresistance value correspond to the values in the thermistor characteristics graph while changing the water temperature.

NOTE:
·Be careful not to allow water to get into the terminal section.


· Wipe off the water droplets on the sensor after the inspection.
Resistance value at a certain temperature
(approximate value)

· Replace it if any abnormality is found during the inspection.
Installation
1. Apply Loctite 262 or equivalent or equivalent to the threaded portion of the engine coolant temperature sensor and tighten at the specified torque.
Tightening torque:20 N-m(2.0 kgm/14 b-t)

Isuzu G-IDSS Diagnostic Service System [03.2022]

Legend
1. Engine coolant temperature sensor
2. Loctite application area
2. Connect the wiring connector.
· Fasten the engine coolant temperature sensor connector harness to the connector(1) with a clip(2).

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