Why does my Toyota Corolla whistle?

To finish: Whistling engine on Toyota Corolla generally indicates a problem with the air intake. So this usually happens at the level of Turbo, since this part is intended to put air under pressure. As it happens it usually happens that the components are damaged and that created air leaks ou parts can also get dirty. via

Why does my car hum when I accelerate?

Your car makes a humming noise when accelerating

What it could mean: This is most likely a wheel bearing noise. It's often mistaken as an engine noise and one way you can tell is to watch your RPM gauge. As you accelerate, the RPM and speed gauges rise. via

Why does my engine make a whining noise?

Whirring or Whining

Whirring and whining noises often vary as the engine runs fast or slow, and they can indicate a number of different problems, including a failing water pump, a bad power steering pump, low power steering fluid, a failing alternator, or problems with the air-conditioning system. via

How do you know if your transmission is whining?

Whining and/or noise whenever the car is moving. Sometimes the sound is paired with the gears slipping. This usually indicates damaged fluid or a low fluid level, and can be fixed by changing the transmission fluid. If the fluid checks out, the problem may be the pump. via

Does the hum go away?

It creeps in slowly in the dark of night, and once inside, it almost never goes away. It's known as the Hum, a steady, droning sound that's heard in places as disparate as Taos, N.M.; Bristol, England; and Largs, Scotland. via

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