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      04-17-2024, 12:49 PM   #1
z4mcdreamer
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Z4 M Humming Noise after turning off engine (video)

Can anyone tell me what's causing this humming sound? It comes on after I turn off my car, and it stops after a few minutes or if I open the door.

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      04-17-2024, 02:16 PM   #2
grannyknot
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Can't say I hear anything on your video but it could be a few things, cooling fan for the ECU, maybe the AC fan.
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      04-18-2024, 10:03 AM   #3
z4mcdreamer
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I figured it out! My idle control valve just needed some cleaning. I used carburetor cleaner, and it worked like a charm.
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