Engine Coolant Temperature Sensor: Removal

Disconnect the ground cable from battery.

Fig 1: Disconnecting Ground Cable From Battery
Courtesy of SUBARU OF AMERICA, INC.
Drain engine coolant. < Ref. to DRAINING OF ENGINE COOLANT , REPLACEMENT. >
Remove the clip (A) from the air intake boot.
Loosen the clamp (B) connecting the air intake boot and air cleaner case (rear).
Loosen the clamp (C) which connects the air intake boot and throttle body.

Fig 2: Identifying Air Intake Boot Clip And Clamps
Courtesy of SUBARU OF AMERICA, INC.
Remove the air intake boot from the throttle body, and move it to the left side wheel apron.

Fig 3: Removing Air Intake Boot From Throttle Body
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Disconnect the connector (A) from the engine coolant temperature sensor, and remove the engine coolant temperature sensor.

Fig 4: Locating Engine Coolant Temperature Sensor Connector
Courtesy of SUBARU OF AMERICA, INC.