If the AC is on constantly, the fan will be on constantly. If that's not it, it mught be the fan relay or the temperature sensor.
The cooling fan will run whenever the AC or Defroster is on. Beyond that, it will run whenever the sensor indicates that the temperature is above a set-point.
If the PC and CPU are still plugged in and the computer is turned on, a person can tell if they have an active or passive cooling system. An active cooling system allows the fan to run constantly. A passive system allows the fan to run only when there is danger of overheating.
Answer: If you mean your radiator cooling fan, it most likely is a grounded or shorted circuit from the "cooling fan sensor" (internal) or a pinched wire. Depends on when it happened: was there any work done prior to this happening? IF not, then the sensor is most likely the issue. In this case, once you find it (normally the sensor is screwed into the bottom of the radiator), unplug one of the wires (or remove the connector) and see if the cooling fan continues to run, if the fan turns off, then replace the sensor.
Check the operation of the cooling fan or fans. One should run constantly with the A/C on. If it does not, check the fuse, relay, and finally the fan itself.
Depending on ambient temperature and which heater mode you have selected your A/C may be running which may in turn trigger the cooling fan. Also if the check engine light is on the fan will sometimes run because of the code set. One final possibility is the temp sensor may be reading incorrectly
Simply bypass the cooling fan thermostat .G
Bad temp. sensor? on most ford contour cars the cooling fan only runs when the motor reaches a certain temp. this model car also has a cooling fan relay switch,if the switch is bad the fan will not run.
The electric cooling fan or cooling fan temp sensor may be faulty.
The cooling fan generally does not run when the car is cold, but could be wired directly to the battery so that when the ignition is engaged, the fan comes on. This is not a factory modification but is often accomplished if the car tends to run hot.
If you have a problem with your cooling fan it may be an electrical problem. You don't want to drive you car in this condition because it can run hot.
If you have the A/C turned on the cooling fan will run continuously which is normal. If that is not the case then the thermal relay may be stuck shut.
If the temperature of your car engine is still very high after stopping, the car cooling fan will continue to run, and the cooling fan will not work until the temperature drops.The above answer comes from Suzhou Santian Precision Mould Manufacturing Co., Ltd.
The cooling fan is designed to come on ONLY when the A/C, defroster (ambient temperature over 45 degrees) or when the engine coolant exceeds 235 degrees. Not designed to run constantly.
If the AC or Defroster is on, many vehicles will also turn on the cooling fan.
It will if the ac is on.
When your engine's stopped running the fan should come on or stay on to cool the engine down,it should stop when it reaches the correct temperature which is set by the switch, located near top of fan. If the fans coming on as soon as you put ignition key in, it sounds like the switch is faulty.
engine cooling fan should not do this - bad temp sensor likely
Yes it is normal if you have an electric fan. The fan will run until the engine temp lowers to normal.
The fan sensor is bad or the fan relay is stuck. Swapping out the relay is the most likely fix.
Blown fuse, defective thermal relay, or defective cooling fan. One fan should run anytime the A/C is on.
Several things may be the cause ...... fan no longer works, cooling fan relay no longer works, coolant temp sensor is bad, or maybe even the cars ECU is'nt telling the fan to come on. Ron J.
There is no fan control switch, and no direct connection to any sensor or switch on that vehicle. The system works like this. The computer(PCM) decides when to turn on the fan. The PCM looks at engine temperature from the ECT sensor, and AC input from the AC control head switches. When the PCM decides that you need the cooling fan to come on, it uses the cooling fan relay, and the cooling fan high speed relay to turn on the fan, and whether it should run at low speed, or high speed. The power input to the cooling fan comes from the cooling fan relays.