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      03-21-2011, 06:59 PM   #1
nitro
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The buzzing noise thread.

I recall reading a thread a while back about noises coming from the car after you shut off the engine.. but for the life of me I can't find it (i've found a bunch of clicking noise threads, but that's about it). Wanted to read it as I just started hearing this loud buzzing noise coming from the car after I shut the engine off (this is standing outside).. lasts for a few seconds (10-15) and then all of a sudden there's this clunk (like someone kicked over a bucket of water) and the buzzing stops. curious. i'm sure i read a thread about it?
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      03-21-2011, 07:15 PM   #2
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What I have heard is sound like that of crushing a can after the car is turned off, but that's just the metal reacting with the change in temperature and contracting
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      03-21-2011, 08:21 PM   #3
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I would guess you're talking about this thread:

http://www.m3post.com/forums/showthread.php?t=478849

The consensus seems to be that it's the EVAP system doing its checks.
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      03-21-2011, 08:22 PM   #4
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Quote:
Originally Posted by nitro View Post
I recall reading a thread a while back about noises coming from the car after you shut off the engine.. but for the life of me I can't find it (i've found a bunch of clicking noise threads, but that's about it). Wanted to read it as I just started hearing this loud buzzing noise coming from the car after I shut the engine off (this is standing outside).. lasts for a few seconds (10-15) and then all of a sudden there's this clunk (like someone kicked over a bucket of water) and the buzzing stops. curious. i'm sure i read a thread about it?
I believe that's the fuel pump switching off.
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      03-22-2011, 06:41 PM   #5
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ah. perfect. thks guys! that's exactly it. a whirring noise coming from the rear driver's side wheel well.... lasts about 20 seconds or so and then i hear this pop (sounds like it is coming from the exhaust) and then it stops... tks again, much appreciated!
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