'06 ES330 Noise

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Fidelis K - 22 Sep 2006 20:15 GMT

I hear low pitched humming/whistling noise from the front right side of my
'06 ES330. The noise is something like what you hear when you blow air into
a big plastic bottle. The pitch doesn't change. It's always low and not so
loud, but it's there. What could it be?

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Ray O - 22 Sep 2006 21:52 GMT

>I hear low pitched humming/whistling noise from the front right side of my
>'06 ES330. The noise is something like what you hear when you blow air into
>a big plastic bottle. The pitch doesn't change. It's always low and not so
>loud, but it's there. What could it be?

Noises are very difficult to diagnose without actually hearing them.
Humming/whistling noises can come from the action of the tire tread on the
pavement; wheel bearings; CV joints; differential bearings; accessory drives
like the power steering pump, alternator, AC compressor, belt tensioner, &
pulleys; from electric fans; and wind noise. Since a 2006 car is likely
under warranty, my recommendation is to go back to the dealership and go on
a road test with someone from the service department so that they can hear
the noise you are concerned about.

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Ray O
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