How do I know if my cooling fan relay is bad?
How do I know if my cooling fan relay is bad?
Bad Cooling Fan Relay Symptoms
- The engine runs hot or overheats.
- The cooling fans don’t work.
- The cooling fans keep running.
- Warning lights.
- Poor air conditioning performance.
- Swapping Relays.
- Measuring the Relay Coil’s Resistance.
- Listening for Noises.
Where is the cooling fan relay located?
The fan relay is usually located near the bottom of the engine compartment on a metal frame member. The metal acts as a heat sink to keep the fan relay cool.
Why are my cooling fans not spinning?
One of the most common reasons fans stop spinning is because of a dead capacitor. Each air conditioning system has several capacitors, including the start capacitor, which sends signals to the motor, and the run capacitor, which keeps the motor running. Capacitors can go bad over time and need to be replaced.
How much does a cooling fan relay cost?
The average for Cooling Fan Relay is $478
| Repair Type | Zip | Cost |
|---|---|---|
| Cooling Fan Relay | 13045 | $373 |
| Cooling Fan Relay | 78452 | $464 |
| Cooling Fan Relay | 23359 | $596 |
How much is it to replace a cooling fan relay?
Which relay is for radiator fan?
The cooling fan relay is normally located in either the underhood fuse and relay center or mounted to the electric fan assembly behind the radiator.
What sensor controls the radiator fan?
coolant temperature sensor
On most modern cars, the cooling fan is controlled by the Engine Control Unit (ECU) which gets a signal from the coolant temperature sensor.
How do you test a fan relay on a car?
How to Check a Fan Relay
- Look at the markings on top or side of the relay case and locate the two control circuit terminals, which connect to the relay’s coil, and the two power circuit terminals, which let electrical current pass to the fan.
- Connect the leads of an ohmmeter to the power terminals on the relay.
Can I drive my car if the fan is not working?
As such, you should never drive your vehicle if the cooling fan isn’t working even though you can. 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.
