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NEED HELP/INPUT AGAIN!! Another weird noise

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Old Sep 18, 2012 | 11:03 PM
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2014 AMG E63S, 2006 XK8 victory edition convertible, 2006 supercharged trailblazer SS, 2001 E430
NEED HELP/INPUT AGAIN!! Another weird noise
Today my 04 E55 started making a weird humming / buzzing noise that I can feel in the floor board. I have aftermarket amps in the car and there is a noise that now comes thru the speakers that directly correlates to this new "vibration" or "buzzing" that i can feel. I unplugged power from the amps and the noise stopped coming thru the speakers. However, the origin noise and vibration/buzzing feeling is still there. i can feel and hear the noise more when i put the car in gear. Any ideas?
Last edited by nizzle; Sep 19, 2012 at 01:44 AM.
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Old Sep 19, 2012 | 01:43 PM
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bump, sounds electrical but I'm not sure. Almost like that transmission pump sound at start up but it doesn't go away. Gonna have to take it to the stealership for diagnosis but I'd just like some ideas of what it might be if anyone has any
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Old Sep 19, 2012 | 06:03 PM
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Bump. Wow no ideas anyone? Have any questions to help think of ideas?
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Old Sep 19, 2012 | 07:49 PM
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Does the noise through the speakers increase in frequency with more RPMS? If so that is alternator whine and is generally caused by a bad ground or too small of gauge ground wire.
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Old Sep 19, 2012 | 07:53 PM
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Have you had exhaust work done? MAybe something is loose like a heat shield or exhaust manifold??
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Old Sep 19, 2012 | 08:33 PM
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Yes does change with rpm's but I have 0 gauge(HUGE) ground and power wire. I did think alternator going bad but would that create vibes in the floor you think?
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Old Sep 19, 2012 | 08:40 PM
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This place is a joke.
Kinda hard to diagnose a noise over the internet

I'll take a shot:

Does it sound like rocks tumbling in your center console, but fast?
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Old Sep 19, 2012 | 09:33 PM
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Originally Posted by E55Greasemonkey
Kinda hard to diagnose a noise over the internet

I'll take a shot:

Does it sound like rocks tumbling in your center console, but fast?
Sounds more like an electric motor running/buzzing or even a "moan".
Last edited by nizzle; Sep 20, 2012 at 12:59 PM.
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Old Sep 20, 2012 | 01:00 PM
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another morning bump
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Old Sep 20, 2012 | 05:05 PM
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I think it might be the alternator going bad.
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Old Sep 27, 2012 | 05:39 PM
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Yep, it was the alternator.......... Fixed
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