Where is the coolant fan switch located?
Category:
home and garden
indoor environmental quality
Locate the cooling fan switch near the thermostat housing on the left side of engine behind the distributor assembly. The switch wire colors should be green and black. Disconnect the wire terminal at the fan switch. Allow the engine to reach a coolant temperature of 196-203°F (91-95°C).
Beside this, what are the symptoms of a faulty cooling fan switch?
Several symptoms may point to a bad or failing thermo coolant fan switch.
- Engine overheating. Engines generate an enormous amount of heat and as a result are subjected to very large temperature swings if this switch does not operate effectively.
- Check Engine Light comes on.
- Broken or shorter signal wire.
In this way, does the coolant temperature sensor control the fan?
The sensor works by measuring the temperature that's being given off by the thermostat and/or the coolant itself. The temperature is then sent to the on-board control system. As the control system receives the temperature from the CTS, it may trigger the cooling fan to either shut off or turn on.
Both radiator fans should always run when the AC compressor is engaged. Both radiator fans should always run when the coolant temperature sensor in the bottom tank of the radiator reaches about 212*F.