A whining noise

Tiny
MIKEDCLAY
  • MEMBER
  • 2011 BMW 740
  • 3.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 67,000 MILES
There is a wining noise coming from the front of the engine while the engin is running.
Thursday, June 20th, 2019 AT 6:39 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Welcome to 2CarPros.

Is there any way you could record the sound and upload it? It could be many different things. Belt driven accessories such as an alternator, power steering pump, ac compressor and so on can make such a sound. Also, cooling fans are known to make a wining sound.

Tell me, is there anything that makes it louder or quieter? Also, does it happen at all speeds or only when stopped?

Here is a link that discusses different sounds and possible causes. One section discusses humming. See if what is discussed mirrors what you are experiencing.

https://www.2carpros.com/articles/engine-noises

Let me know.

Joe
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Friday, June 21st, 2019 AT 9:35 PM

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