Why is my radiator cooling fan not turning off?
Why is my radiator cooling fan not turning off?
2010 Volvo XC60 T6 (59K miles) – Engine cooling fan won’t shut off. The LOWER RIGHT fan is the one that won’t stop while the UPPER LEFT one has stopped. To completely shut off the fan, I disconnected the battery (+). I reconnect the battery, and the fan still runs without turning the car on.
How does the radiator fan on a car work?
The radiator fan module has a ten minute timer in it that allows the fan to come on if one of the temp sensors detects a coolant temp over a specified temperature. This is when you shut off the car and the fan stops, but a minute later is starts up again.
What to do if your computer cooling fan won’t run?
Replace the cooling fan relay with a new one. A stuck closed relay is the only thing that can operate the cooling fan continuously with the key off. The computer looses power with the key off and the same applies to the coolant temperature sensor. The relay, however, has direct power to one side, the same as a light switch.
Why does my car fan keep running after I shut it off?
It is so the car won’t heat soak and blow coolant out the pressure release. Your habit of pulling the fuse may have arced the contacts on the fan relay causing it to weld itself open. Replacing that relay should fix it but it still may run the fan after you shut the car off.
Why is my GMC Sierra radiator not turning off?
So I start my ’14 sierra this morning and it sounds louder than usual. The fan seems like it’s loud and doesn’t shut off.. Last night I had to take take out and unclip my air filter in order to get to my headlight assembly.. I put everything back as I did the previous night before when I did the same thing..
Why is your radiator fan not running?
The most common causes when a radiator fan is not coming on is broken fuse, bad wirings, bad coolant temperature sensor, bad fan relay, or a faulty radiator fan . Here is a more detailed list of the most common causes of a radiator fan not coming on.
Why does your radiator fan keep going on and off?
Here are some possibilities causing the fan to stay running longer. low coolant level, faulty coolant temperature sensor, PCM or ECU defective. coolant leaks from the water pump, cracked radiator, worn upper or lower radiator hoses, leaky heater core, leaky thermostat housing,
What causes a radiator fan to stop working?
Voltage spikes, high resistances in control circuits, defective vehicle batteries, bad wiring, short circuits, moisture, corrosion, and even excessive vibration due to damage to the fan itself can all cause a fan motor to fail.
Why does radiator fan not working?
- the first thing to check is the fuse. If you don’t know where the…
- check the fan wires. Start by unplugging the wires.
- Temperature Sensor. The temperature sensor determines when the radiator fan comes on by reading the cooling system…
- Coolant Level. Check the coolant level in your engine. The simplest way to do this is to look at the reservoir in the…
