Table of Contents
- 1 What can cause a cooling fan not to come on?
- 2 What does it mean when radiator fan doesn’t turn on?
- 3 Should radiator fan come on when car starts?
- 4 Can a bad temperature sensor cause fan not working?
- 5 Can you drive a car if the radiator fan is not working?
- 6 Why does my engine fan come on when I start my car?
- 7 Does the engine fan always run?
- 8 Why is my Toyota Camry’s radiator fan not working?
- 9 What happens if you put low coolant in a Toyota Camry?
What can cause a cooling fan not to come on?
Six things may prevent an electric cooling fan from coming on:
- Defective temperature switch, coolant sensor or other sensor.
- Engine thermostat is stuck OPEN (engine never gets hot enough to turn on the fan)
- Faulty fan relay.
- A wiring problem (blown fuse, loose or corroded connector, shorts, opens, etc.)
- Bad fan motor.
What does it mean when radiator fan doesn’t turn on?
The most common reasons a radiator fan is not working are luckily due to a blown fuse, bad relay, or a broken wire. It can also be caused by a faulty coolant temp sensor, low coolant level or the fan itself can be damaged.
Should radiator fan come on when car starts?
The engine temperature should trigger the fan to turn on. It will also turn the fan off once the engine has cooled to under 200 degrees. You may have heard of a part called the radiator fan switch or temperature fan switch.
Should cooling fan come on when AC is on?
The condenser fan (if it has a dedicated fan) or the radiator fan most always comes in (with AC on) when the compressor discharge pressure (or, alternatively, the liquid line one; look for where a sensor or a switch is located on the high pressure line) rises over an operative threshold.
How do I know if my radiator fan fuse is bad?
These are the most common signs of a faulty radiator fan assembly in need of replacement:
- Engine Overheating. When the radiator fan isn’t functioning properly, it is not able to adequately cool down the car’s engine.
- Air Conditioner Function Diminished.
- Loud Noise Coming From Radiator Fan.
Can a bad temperature sensor cause fan not working?
A broken coolant temperature sensor can also make the radiator fan not work as well. When this sensor fails it may cause overheating in the process. This sensor may also relate to other different symptoms as well.
Can you drive a car if the radiator 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.
Why does my engine fan come on when I start my car?
If the fan comes on, you may have a bad temperature sensor or gauge. 2. A cooling fan temperature switch (or sensor, in some vehicles) can also get stuck, which may cause the fan to run continuously any time you turn the ignition key on or start the engine. Troubleshoot the switch.
Why does my engine cooling fan keep running?
It’s normal for some vehicles to have a fan run for a few minutes after the car is shut off, generally to keep the engine cool. However, if the fan is running for an extended period, the fan itself can become damaged due to overuse. It’s possible you may have a module or relay failing in your car.
Does temperature sensor turn on fan?
The temperature that’s being given off by the thermostat is what the sensor works on. The on-board control system gets the temperature. The cooling fan may be turned on or off when the control system receives the temperature from the CTS.
Does the engine fan always run?
Temperature will often determine the time that a radiator fan starts up. A temperature-sensitive switch functions to turn the fan on and off periodically. Radiator fans are designed to start when the temperature of the engine coolant reaches around 200 degrees Fahrenheit.
Why is my Toyota Camry’s radiator fan not working?
There are many reasons why your Toyota Camry’s radiator fan is not working. Of all the ones listed above, start with the coolant level, then check the fuse. After that, the order isn’t so important. But, you don’t want to miss the easy fixes before you start testing wiring.
What happens if you put low coolant in a Toyota Camry?
Your Camry’s radiator fan will not kick on. If you do have low coolant, don’t fill it up until the engine has cooled off. Adding coolant to a radiator dry enough not to trigger the engine temp sensor can cause problems from drastic temperature change. Let it cool down first.
What does the engine temperature sensor do on a Toyota Camry?
Your engine temperature sensor is responsible for relaying your engine temp to the ECU. Once the temp gets so hot, the ECU commands the radiator fan to come on. If your Camry 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.
What happens if you put low coolant in a fan clutch?
If you do have low coolant, don’t fill it up until the engine has cooled off. Adding coolant to a radiator dry enough not to trigger the engine temp sensor can cause problems from drastic temperature change. Let it cool down first. Like any other clutch, a fan clutch will wear out over time.