Why do I hear a fan when I turn my car off?
Engine cooling fans and other systems are programmed to keep running in some cars even when the engine is off. And many other sounds from under the hood of a car that has been shut off are also normal.
Why is my car making a noise after I turn it off?
The “pinging” noise you hear is coming from the hot metal cooling under your car. As you drive, the engine and all the parts around it start to heat up and expand. Once you turn the car off, those metals will cool and contract. These tiny bumps produce the “pang” or “ping” you hear coming from your turned-off car.
Can a car fan still run after the engine is turned off?
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. Your car fan will run for a few minutes after you turn off the car then turn off. This is normal in many vehicles, such as BMW or Mercedes-Benz.
Why is my radiator fan making a groaning noise?
If the fan was not running, you would not hear the noise. If I am right, the radiator fan probably has a bad bearing. With the car cold and the key off, try spinning the fan by hand. You may be able to confirm whether or not the fan motor has a bad bearing.
What’s the motor sound coming from Under my Truck?
I just heard the same sound coming from mine when I walked in the garage a few minutes ago. Turned the truck on except the engine, then back off, and the humming stopped. It had been 7 hours since I last drove it. I just heard this sound today as well.
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.
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. Your car fan will run for a few minutes after you turn off the car then turn off. This is normal in many vehicles, such as BMW or Mercedes-Benz.
Why does my car overheat when the fan is on?
This condition will cause the engine to overheat because the fan fails to pull the necessary air through the radiator that cools the engine by the use of the systems coolant. This problem can be detected by listening to the fan while the engine is running and hot, you should be able to hear the fan engage.
When does the radiator fan go on or off?
Even kicks on when its a cooler day. Also stays on when driving down the highway. Thought the fan was supposed to kick on when it reached a certain temperature then goes off once the temp drops. Switched out the high and low speed relays and did no good.
Why does my car fan make a roaring sound?
First the and most common way a fan clutch can fail is the clutch shoe inside the unit can get stuck and not disengage causing the fan to lock up on the input shaft which will permanently engage the cooling fan which will be accompanied by a noticeable roaring sound.