If the switch isn t working it should be replaced.
Cooling fan temperature sensor switch.
Fan thermostat temperature switch with 3 8 pipe thread 185 to 175 degree electric engine cooling fan thermostat temperature sensor switch fits 10 12 14 16 fan with pipe thread 4 4 out of 5 stars 118 21 99 21 99 save 5 with coupon.
Your cadillac actually has two cooling fan control switches.
Those water pumps have a coolant temperature sensor plumbed into the hot passage measuring the temperature of the coolant just before it exits the pump on the way to the radiator.
Fan thermostat temperature switch with 3 8 pipe thread 185 to 175 degree electric engine cooling fan thermostat temperature sensor switch fits 10 12 14 16 fan with pipe thread.
When the coolant within the radiator reaches a specified temperature the sensor activates the fan.
Because the fan relay sender is just a switch it doesn t detect variables in temperature like a typical gauge sender does.
Diysave10 online ship to home orders only duralast cooling fan switch radiator sw1123.
The summit 890117 electric fan thermostat switch will not work with a gauge.
Your cooling fan switch activates your fans to cool your radiator.
The switch is designed to be on or off depending on the temp of the engine.
Fan thermostat temperature switch with 3 8 pipe thread 185 to 175 degree electric engine cooling fan thermostat temperature sensor switch fits 10 12 14 16 fan with pipe thread.
If your coolant temperature is 210 degrees it s the same as seeing 185 degrees and it s switched on.
You would need two temp ports and two senders.
Symptoms of a faulty cooling fan switch include an overheated engine and an active check engine light.
If you re coolant temperature is 125 degrees it s the same as 0 to the sender and it s switched off.
Fan thermostat temperature switch with 3 8 pipe thread 185 to 175 degree electric engine cooling fan thermostat temperature sensor switch fits 10 12 14 16 fan with pipe thread.
At o reilly auto parts we offer quality electrical components including the cooling fan switch you need for your repair.