Why is the radiator not working on my Hyundai Sonata?
If the radiator fan is not working, it’s a serious problem. Just because the radiator fan is not on does not mean that it is not working. They are designed to only run when needed. If your Sonata is running hot, and the fan is not running we’ve laid out the most common causes of this issue below.
How does the cooling fan relay work on a car?
The cooling fan relay is the relay that controls the engine’s cooling fans. When the correct parameters are met, a temperature switch or the computer will activate the relay, which will allow power to the fans. The relay will usually be activated once it is detected that the vehicle’s temperature…
Why are the cooling fans not working on my car?
1. Engine running hot 2. Cooling fans do not function 3. Cooling fans stay on at all times Average rating from 129,472 customers who received a Vehicle Engine Cooling Inspection. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.
What are the symptoms of a bad cooling fan relay?
1. Engine running hot One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly.
If the radiator fan is not working, it’s a serious problem. Just because the radiator fan is not on does not mean that it is not working. They are designed to only run when needed. If your Sonata is running hot, and the fan is not running we’ve laid out the most common causes of this issue below.
Is the car cooling fan still on when the engine is turned off?
Car Fan Still On When Engine is Turned Off. You park your car, turn off the ignition and start walking away. Then you notice the engine cooling fan is still running even though the car is turned off. It is ok for the engine cooling fan to keep running for a few minutes after turning off the car.
Is it normal for a car fan to run all the time?
This is normal in many vehicles, such as BMW or Mercedes-Benz. The radiator fan may run up to five minutes and sometimes longer. Unless there is an electrical issue, it may stay on all the time until it drains the battery. When the engine is running, the coolant circulates from the engine and flows to the radiator, where heat is dissipated.
Why does the radiator fan run all the time?
The radiator fan may run up to five minutes and sometimes longer. Unless there is an electrical issue, it may stay on all the time until it drains the battery. When the engine is running, the coolant circulates from the engine and flows to the radiator, where heat is dissipated.
Where is the blower fan on a Hyundai Sonata?
With the engine on, turn on the air and adjust the pressure. The normal accompanying sound indicates the blower fan is working properly. Locate the blower motor in a Hyundai Sonata directly below the dashboard on the passenger side. Get to it by disconnecting the battery, removing the dashpad and removing the screws and bolts.
How can you tell if a Hyundai radiator fan is working?
If you see battery voltage, that confirms the engine control relay is providing power to the control coil side of the relays. With the key in RUN position, turn the AC ON. Then check for ground on pin 1 in the condenser fan relay socket. If you detect good ground, the ECM is operating properly
What kind of wiring does a Hyundai radiator use?
This is a typical Hyundai wiring diagram for the radiator fan and AC condenser fan. The system uses a radiator fan relay and a condenser fan relay. Both receive power from fusible links, not ordinary fuses.
If you see battery voltage, that confirms the engine control relay is providing power to the control coil side of the relays. With the key in RUN position, turn the AC ON. Then check for ground on pin 1 in the condenser fan relay socket. If you detect good ground, the ECM is operating properly
What to do if your Hyundai air conditioner is not working?
Keep your fingers away from the fans. Disconnect the battery or the fan connector if you need to work directly on the fan. 1. I bought some weatherproof butt connectors from Checker. If you do this repair yourself, you will also want to have on hand a crimping tool and some electrical tape or heat-shrink. 2.
This is a typical Hyundai wiring diagram for the radiator fan and AC condenser fan. The system uses a radiator fan relay and a condenser fan relay. Both receive power from fusible links, not ordinary fuses.
How does the radiator fan relay work in a Hyundai?
When it senses that engine coolant temp has reached a point where it needs cooling, the ECM provides ground to the radiator fan relay control coil. The relay activates and provides power to the radiator fan. The AC condenser fan relay is activated by the ECM when the AC switch is turned on.
What should I do if my radiator fan is not working?
If the radiator fan relay is activated and the ECM detects that the fan can’t provide adequate cooling, it will activate the condenser fan relay to provide supplemental cooling. If both fan can’t provide enough cooling and the temperature gauge rises into the danger zone, stop driving the vehicle and have it towed to a shop.
Why is the radiator fan relay not working?
If you don’t get ground on pin 3, the ECM is not activating the radiator relay. That can be caused by a faulty engine coolant temperature sensor or a wiring problem between the ECM and pin 3. If you do find ground on pin 3, jumper across pins 1 & 2 in the socket. If the radiator fan runs, then the radiator fan relay is bad. Replace it.
If the radiator fan relay is activated and the ECM detects that the fan can’t provide adequate cooling, it will activate the condenser fan relay to provide supplemental cooling. If both fan can’t provide enough cooling and the temperature gauge rises into the danger zone, stop driving the vehicle and have it towed to a shop.