What kind of noise does a 12V fan make?
Tested using a 12v fan. Before lowering the PWM, the sound from the fan was a loud “WHEEEEEeeeeeeeee” sound at any speed other than full speed. Low speed made the sound worse. After lowering the PWM frequency, the noise is inaudible at higher speeds. At lower speeds you might hear a light “clicking” noise.
What makes a loud roaring noise when accelerating?
Took my warrantied vehicle listed above (v8 premier) in to have the radiator fixed and when I got the car back it had an extremely loud roaring noise when accelerating. I took it back in and they replaced the electronic fan clutch but it is still making the noise.
Why does my car make a loud fan when I accelerate?
It is possible that your engine is getting hotter than normal and is kicking the fan on harder to assist with cooling. It is likely that if the issue got any worse that a warning light may come on.
Why is the sound worse at lower speeds?
Low speed made the sound worse. After lowering the PWM frequency, the noise is inaudible at higher speeds. At lower speeds you might hear a light “clicking” noise. The sound reminds me of the faint “clicking” noise you hear as the valves on a car engine open and close. I can also confirm that SAS answer ist correct. I tested it with a 5V DC fan.
Took my warrantied vehicle listed above (v8 premier) in to have the radiator fixed and when I got the car back it had an extremely loud roaring noise when accelerating. I took it back in and they replaced the electronic fan clutch but it is still making the noise.
Why does my car make a loud noise when I increase speed?
If I increase speed from level speed, it either does not make the noise, which sounds like a loud roaring, or it is not as loud. Previously, the only time my car made any kind of “odd” or louder noise would be the first time I turned it on after not driving it for awhile, but it would stop within a minute or so.
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 should I do if my car makes a whining noise when accelerating?
Drive your car slowly over a smooth and even road, and try to feel and hear whether there is anything out of the ordinary, especially as you shift gears. Then, accelerate quickly and continue to listen and feel for anything that’s off.