Colt L4-1597cc 1.6L VIN 3 2-BBL (1983)
Radiator Cooling Fan Motor: Description and Operation
Fig. 1 Exploded view of electric cooling fan assembly (typical). 1984 Colt Hatchback, 1984-88 Colt Vista & 1985-88 Colt
The electric cooling fan is controlled by a thermo sensor and a relay. The thermo sensor is located in the radiator lower tank. When coolant temperature
reaches approximately 185°F, the thermo sensor contacts close, providing a ground circuit to the fan relay, which provides voltage to the fan motor.
When coolant temperature drops to approximately 178°F, the thermo sensor contacts open, opening the fan relay and shutting off the fan.
