Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Coolant Temperature Sensor/Switch (For Computer): Service and Repair

Engine Coolant Temperature (ECT) Sensor:






NOTICE: Care must be taken when handling engine coolant temperature sensor. Damage to the Engine Coolant Temperature (ECT) sensor will affect proper operation of the fuel injection system.

Removal

1. Disconnect negative battery cable.
2. Drain cooling system below level of sensor.
3. Disconnect electrical connector.
4. Remove Engine Coolant Temperature (ECT) sensor.

Installation

1. Install sensor in engine.
2. Connect electrical connector.
3. Refill cooling system.
4. Connect negative battery cable.