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)

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

COOLANT TEMPERATURE SENSOR REPLACEMENT
1. Drain approximately one gallon of coolant from the engine.
2. Remove the wire connector from the coolent temperature sensor.
3. Using a suitable socket, unscrew the coolant temperature sensor from the intake manifold.
4. Reverse procedure for installation.
5. Refill the cooling system before starting the vehicle. Bring engine to operating temperature, inspect for leaks and top off the coolant.