Engine overheating or cooling fan running all the time.
check the cooling fan sensor somewhere attached of the fan housing.
Your fan could be running continuously because your car is running hot. You should take your Explorer to a licensed mechanic.
The fan relay is most likely stuck closed. Remove the relay to see if the fan stops running, if the fan stops, replace the relay.
Either your engine is running hot or the fan switch in the radiator has failed or the relay is stuck.
No. The thermostat would maintain constant temp.
no, it only runs when the heat sensor trips
It will run continuously if the A/C is on. If it is running all the time with the A/C off, then check the thermal relay as it may be stuck closed.
engine cooling fan should not do this - bad temp sensor likely
There is a good possibility the relay is stuck.
a fan bypass is done by bypassing the cooling fan switch and running the fan power to a key on circuit which means the fan runs all the time the car is running it will not cycle on and off. its usually wired to an acc fuse in box or done correctly it should be wired with a relay because of the hi amp constant draw
If it runs all of the time, even if the engine is first started inthe morning,Then the temp sensor that controls the fan may be gone.