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

ECT Sensor:






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

REMOVE OR DISASSEMBLE
1. Relieve coolant pressure.
2. Negative battery cable.
3. Electrical connector.
4. Carefully back out sensor.


INSTALL OR CONNECT
1. Coat threads (only) with sealer P/N 9985253 or equivalent.
2. Install sensor in engine.

Tighten
Sensor to 13 Nm (10 lb. ft.).

3. Connect electrical connector.
4. Connect negative battery cable.
5. Refill lost coolant.