Temperature Sensors & Temperature Switch

On water cooled engines it is necessary to drain cooling system before removing these components. Air filter should also be removed, and electrical connectors to each component should be disconnected. On sensors, unscrew using a 1/2 in. (13 mm) wrench. When removing temperature switch, use a 15/16 in. (24 mm) wrench. When replacing, the sealing rings must also be replaced.