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): Locations

Engine View:

Engine Coolant Temperature (ECT) Sensor:

The Engine Coolant Temperature (ECT) Sensor is located at the top LH front of the engine.

NOTE: In some applications of the 4.6L engine, the Cylinder Head Temperature (CHT) sensor provides the signal used by the Powertrain Control Module (PCM) in place of the ECT for functions such as, but not limited to, activating the electric cooling fans.