What causes excessive noise in an electric motor?
Motor shaft end play Excessive electric motor noise can be caused by excessive motor shaft end play – the distance the shaft can move in and out of the motor. Beckett (1989) [1] notes that a new electric AC motor will have no more than .035″ of movement in and out.
Why do I hear a low pitched hum while driving?
While driving, you hear a low-pitched hum. As you accelerate, the noise gets louder—maybe it sounds like an airplane taking off—but after a certain speed the volume is consistent. When you make a turn, the noise gets louder; but if you turn the other way, it disappears. What it could mean: This is most likely a wheel bearing noise.
What kind of noises do car engines make?
Here are the 5 most common engine noises made by the engines and their potential causes: 1. Engine knocking sounds This sound is usually heard as you drive your car, changing gears and accelerating. The sound seems like something inside the engine is knocking hard on it.
What causes a high pitched intermittent squeal while driving?
My vehicle is a Lexus IS250 with almost 140k miles. I’m getting an intermittent squealing from one of the wheels while driving. It’s very high pitched, not a rumble, and intermittent: it comes and goes, chirping several times a second, occasionally lasting for a couple of seconds.
Can a motor make a high pitched sound?
The ammount of movement for a high pitch sound is MINIMAL. and a motor is quite capable of producing those sounds. Not only that, but the shell of the motor, and the windings can move enough to make a little noise. not just the rotor.
While driving, you hear a low-pitched hum. As you accelerate, the noise gets louder—maybe it sounds like an airplane taking off—but after a certain speed the volume is consistent. When you make a turn, the noise gets louder; but if you turn the other way, it disappears. What it could mean: This is most likely a wheel bearing noise.
What happens if a motor noise is not corrected?
If a motor noise is not corrected the overall system performance will suffer, the noise will get progressively worse, and the motor will eventually fail. After querying many colleagues who “live” in the motor Variable Frequency Drive (VFD) world, I have only been able to uncover a few such situations.
What kind of noise does my car make?
There is a very high pitch whine/whistle coming from the engine compartment. I’ve been able to narrow down what I can and can not do to influence the noise. My car is an automatic. – The noise first becomes apparent once the engine has been warm for ~15 minutes. If everything is cold, no (audible) noise. – Accelerating makes the noise go away.