Thread: E53 3.0i whine
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Old 11-12-2019, 06:47 PM
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andrewwynn andrewwynn is offline
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Quote:
Originally Posted by GaryC View Post
Definitely not coming through speakers. My first thought!



People always talk about the intake boot and DISA, but both replaced. Also have a new alternator and sound was there before that was replaced.


There are a dozen speakers. Are you positive? Pull the fuse, that's the only way to be positive. Also: use an app on your phone to measure the sound.

I use an app:

https://apps.apple.com/us/app/fft/id298840058

For many troubleshooting jobs, this one is not cheap if I remember but it's paid for itself many times over!

Take a scan and pan around the car, there will be distinct peaks you can track


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E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
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