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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

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






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


REMOVE OR DISCONNECT
1. Relieve engine coolant system pressure.
2. Turn ignition to "OFF."
3. Electrical connector.
4. Carefully back out ECT sensor.

INSTALL OR CONNECT
1. Coat threads (only) with sealer.
2. Sensor in engine, fully driven, seated and not stripped.
3. Electrical connector.
4. Refill lost coolant.