# Humming noise on my SIenna

**URL:** <https://community.cartalk.com/t/humming-noise-on-my-sienna/91306>\
**Category:** Maintenance/Repairs\
**Tags:** noises, brakes\
**Created:** [September 28, 2015, 5:37pm UTC](https://community.cartalk.com/t/humming-noise-on-my-sienna/91306 "2015-09-28T17:37:25Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![melD77](https://avatars.discourse-cdn.com/v4/letter/m/3ec8ea/32.png) [@melD77](https://community.cartalk.com/u/melD77)\
**Post date:** [September 28, 2015, 5:37pm UTC](https://community.cartalk.com/t/humming-noise-on-my-sienna/91306/1 "2015-09-28T17:37:25Z")

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Hi. I have a 2009 Toyota Sienna with approx. 130k miles. Recently I am noticing when driving on the highway that I get a humming/ringing sounds. It gets louder and softer as I drive. It is not always there but when it does make that sound, it is when I am over 65 mph. If I tap the brake it immediately stops but then if I hit the gas it starts again. Also sometimes when I tap the brakes (not on the highway) I do get a screeching sound. I’ve taken it to the mechanic and he checked my brakes and says they are fine. I just got two front tires thinking it was that but it is still there. Is there anything else that I should consider? Should I go get a second opinion on the brakes since the sound stops as soon as I tap the breaks? Thanks!

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**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\
**Post date:** [September 28, 2015, 5:40pm UTC](https://community.cartalk.com/t/humming-noise-on-my-sienna/91306/2 "2015-09-28T17:40:21Z")

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BRAKES not breaks

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [September 28, 2015, 5:44pm UTC](https://community.cartalk.com/t/humming-noise-on-my-sienna/91306/3 "2015-09-28T17:44:28Z")

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I would suggest having a different mechanic check your **brakes** , as well as the wheel bearings.

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**Author:** ![edb1961](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/edb1961/32/122_2.png) [@edb1961](https://community.cartalk.com/u/edb1961)\
**Post date:** [September 28, 2015, 6:19pm UTC](https://community.cartalk.com/t/humming-noise-on-my-sienna/91306/4 "2015-09-28T18:19:52Z")

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The screech may be the from the accessory belts (A/C, Alternator, and PS). If they are the original belts it wouldn’t hurt to replace them after 6 years.

Ed B.

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**Author:** ![knfenimore](https://avatars.discourse-cdn.com/v4/letter/k/9fc348/32.png) [@knfenimore](https://community.cartalk.com/u/knfenimore)\
**Post date:** [September 29, 2015, 1:45am UTC](https://community.cartalk.com/t/humming-noise-on-my-sienna/91306/5 "2015-09-29T01:45:35Z")

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Brake grease could be added to the back of the pads to reduce the brake sqeal. Are the pads oem?

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [September 29, 2015, 7:53am UTC](https://community.cartalk.com/t/humming-noise-on-my-sienna/91306/6 "2015-09-29T07:53:18Z")

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Try swapping the front and rear tires, see if the noise switches places too. First place to start on this kind of problem is usually the tires. Not b/c it is always the tires, but the tires are the easiest to eliminate.