How do you test an electric cooling fan?
The fan motor itself can be checked by using jumper wires. Unplug the wiring connector on the fan, and use the jumper wires from the battery to route power directly to the fan. If the fan motor is good, the fan should spin at normal speed when supplied with 12 volts.
How do I know if my cooling fan is bad?
Symptoms of a Bad or Failing Cooling/Radiator Fan Motor
- Cooling fans do not come on. The most common symptom of a faulty cooling fan motor are cooling fans that do not come on. …
- Vehicle overheating. Another symptom of a possible problem with the cooling or radiator fan motors is the vehicle overheating. …
- Blown fuse.
How do you test a radiator fan with a multimeter?
Kick off the engine or switch the ignition key off to IG2. Set the multimeter’s meter to ’20’ in the DCV section as you will be testing 12V circuits. The black multimeter probe will go to the negative battery terminal (for under-hood fuses) or a metal ground point on the car (for under-dash fuses).
Why is my electric fan not working?
Whether the blades aren’t spinning or the fan is making tons of noise, most issues with an electric fan are caused by poor lubrication or blockages in the vents. To solve most problems with an electric fan, disassemble the fan, lubricate the central pin and bearings, and clean out the vent and motor case.
What temp should my electric fan turn on?
Your radiator fan should kick in at about 200 degrees Fahrenheit. If you notice your vehicle is overheating or at the very least running hotter than it normally does, listen for the fan to see if you can hear it.
Can I drive my car if the fan is not working?
Yes, technically your engine does not need a cooling fan to operate. … If the radiator does not have cool air blowing on it constantly, it will overheat eventually, so you’d need the perfect combination of weather and traffic to drive effectively without a radiator fan.
How long does a radiator fan take to turn on?
about 15-20 minutes
Will a bad radiator fan cause AC not to work?
If the engine is running hot or overheating, it can have a noticeable negative affect on the air conditioning system. Some cars have two electric cooling fans, one for the air conditioning condenser and the other for the radiator. … Usually at idle on a hot day with the AC on both fans will be on.
How much does it cost to fix radiator fan?
The Best in Auto Repair
The average cost for radiator fan motor replacement is between $591 and $624. Labor costs are estimated between $111 and $140 while parts are priced between $480 and $484. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
Should radiator fan turn on when AC is on?
Both radiator fans should always run when the AC compressor is engaged. … To check the temperature at which the fan comes on, turn the A/C off and keep the engine running until it reaches normal operating temperature. Most fans should come on when the coolant reaches about 200 to 230 degrees.
Should radiator fan run all time?
An electric fan SHOULD NOT run all the time. A mechanical fan WILL spin as long as the engine is running, but it will only ‘lock up’ when needed. … Both radiator fans should always run when the coolant temperature sensor in the bottom tank of the radiator reaches about 212*F.
How do you check if a relay is working?
The only tool required to check a relay is a multimeter. With the relay removed from the fuse box, the multimeter set to measure DC voltage and the switch in the cab activated, first check to see if there are 12 volts at the 85 position in the fuse box where the relay plugs in (or wherever the relay is located).
Do both radiator fans turn on at the same time?
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.
Where is the radiator fan control module?
The cooling fan control module is located at the front left of the engine compartment next to the radiator.