Whine/Noise/High Pitch Arg!

Originally Posted by cpehaot If the fuel pump is the suspect, u can check that by turning your car "ON" (not start) the fuel pump should run for a little

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Whine/Noise/High Pitch Arg!

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10-07-2009, 12:54 PM

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VCuomo

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Join Date: May 2009

Location: SoCal

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Drives: BMW 335i Sport

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Quote:

Originally Posted by cpehaot

If the fuel pump is the suspect, u can check that by turning your car "ON" (not start) the fuel pump should run for a little bit then stop. You can hear if it's the same noise. The bearing on your vent fan can make some small high pitch noise too so make sure u have it/them off.

It's the ECU...

BTW, I don't have Nav, but I've heard it at times when my radio isn't on.

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