Why is the radiator fan not working on my Hyundai Accent?
If your Accent has a bad engine temp sensor the radiator fan won’t know to come on, because the ECU won’t know how hot the engine is. You’ll need to locate and test the engine temp sensor. Depending on the model year and engine, the location varies. If it does end up being this sensor, they are very affordable.
Why are my coolant fans not turning on?
If both fans operate then it is time to take a look at the pressure transducer. Don’t let this strange name fool you, it is simply a sensor that relays the amount of pressure in the system to the PCM and the PCM decides when to turn on the fans and or compressor clutch.
Can a bad coolant sensor be a problem?
You can have a bad sensor even without a “check engine” light or trouble code. We could tell you how to test it, but they’re so cheap (about $15) and easy to replace, that it makes more sense to just replace an engine coolant temperature sensor.
Why does my car have a bad coolant temperature?
If you have to pump the gas pedal in the morning to keep your car running, you may have a bad engine coolant temperature sensor. The computer in every fuel-injected car must know two things before it can figure out the correct cold-start air/fuel mixture: the engine coolant temperature and the outside air temperature.
If your Accent has a bad engine temp sensor the radiator fan won’t know to come on, because the ECU won’t know how hot the engine is. You’ll need to locate and test the engine temp sensor. Depending on the model year and engine, the location varies. If it does end up being this sensor, they are very affordable.
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.
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 not working on my Hyundai Accent?
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 Accent is running hot, and the fan is not running we’ve laid out the most common causes of this issue below. Hyundai Accent Radiator Fan Not Working Causes
How can I tell if my Hyundai Accent fan is bad?
You can test the voltage going from the fan relay to the fan itself. If it is getting 12+ volts, the fan should be coming on. But if it’s not, which means the fan has gone bad. This videofrom Ratchets and Wrenches is a phenomenal resource on how to properly diagnose a wiring problem.
What happens if a Hyundai radiator fan overheats?
Continuing to drive while the engine is overheated can warp the cylinder head and damage the head gasket, costing at least $1,500 in repairs. If the gauge indicates an overheating condition and both fans are running
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.