1) Engine cooling system
Found on
https://www.crosswordclues.com/clue/fan-clutch
A fan clutch is a thermostatic device that exists as an integral component of certain automotive cooling systems. ==Function== When the engine is cool or even at normal operating temperature, the fan clutch partially disengages the engine`s mechanically-driven radiator cooling fan, generally located at the front of the water pump and driven by a ....
Found on
http://en.wikipedia.org/wiki/Fan_clutch
No exact match found.
