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Humming at back of the car.

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Old 05-14-13, 08:12 AM   #16
bigblack06
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Originally Posted by LexBob2 View Post
As I recall, there is something in the owners manual about (humming) noises when the car is shut off and that it is normal. It's the fuel system purging itself periodically.

And as mentioned, the HID's make a humming sound too.
Yep, that's what it is. My GS does it and my mothers X3 does it as well, its normal there was a discussion in the 3GS forum thread on this. I'll see if I can find it.
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Old 05-14-13, 08:19 AM   #17
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Good to know. Maybe it starts only after its been parked over a certain amount of time?
True. Something like 8 hours, actually.
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Old 05-14-13, 08:32 AM   #18
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I've had my ES350 for a month, but haven't noticed any noise when it's off. How long does the sound last after it starts?


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350, back, ca, car, es, es300h, hum, issue, lexus, noise, off, parked, rear, shut, trunck, unusual

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