First check that the fan does work. Unplug at the fan and jump the wire to see if the fan works. If yes, then change the fan temp sensor or check the wiring to the sensor. If the fan does not come on when you jump the wire, then have the fan replaced.
change the heather fan sensor
the sensor is on the the thermostat housing, youll see one on top(fan sensor)the other is underneath the housing.the housing will have to be removed to change it
You either have a bad fan relay which is easy to change( in the fuse box) or a bad thermo temperature sensor (screws into the radiator). Change the relay first(do it yourself) If they still run then you'll need BMW mechanics for the sensor.
If you have the required tools and know-how, Then yes. Adding an IR sensor to the fan, Programming the chipboard to respon to the IR Sensor then you can make the fan remote controlled, but it would be more wise to buy one and not build one.
To check the fan sensor on a 98 escort with the key on disconnect the electrical connector to the temperature sesnor. If the fan come on the sensor is all right.
The 1996 Pontiac Grand Prix cooling fan sensor is located on the front of the engine. The fan sensor can be found just above the thermostat.
The radiator fan sensor switch or the radiator fan motor are at fault (maybe even both). Wire the fan motor direct to see if it will run, if it does, replace the sensor switch. If the fan motor doesn't run, replace the fan motor before you buy a new sensor. If after replacing the fan motor, the fan still doesn't run, then replace the sensor.
coolant fan temp sensor 1998 crown victoria
how to install fan clutch sensor in mercedes 1984 500 sel
Do you have the electric and clutch fan. If so, the electric fan only starts on demand, or when the a/c is turned on. The electric fan is controlled by a temp. sensor for the rad. Have the connection checked, and even you can change the temp. sensor.
The coolant fan sensor is the same as the sensor that shows the coolant temperature on the dash gauge. It is located on the intake manifold.