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): Locations




Coolant temperature sensors





Location of sensors
Sensors are located on left-hand side of cylinder head under intake manifold.

Front sensor supplies signal to ignition and fuel injection systems.

Rear sensor is connected to temperature gauge.