# AC whine

**URL:** <https://community.cartalk.com/t/ac-whine/2136>\
**Category:** Maintenance/Repairs\
**Created:** [July 24, 2007, 3:53pm UTC](https://community.cartalk.com/t/ac-whine/2136 "2007-07-24T15:53:27Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![feywork](https://avatars.discourse-cdn.com/v4/letter/f/59ef9b/32.png) [@feywork](https://community.cartalk.com/u/feywork)\
**Post date:** [July 24, 2007, 3:53pm UTC](https://community.cartalk.com/t/ac-whine/2136/1 "2007-07-24T15:53:27Z")

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I have a new Honda CR-V. An intermittent high pitch sound is heard when the AC is on. The fan usually is at low; it occurs after driving awhile; I haven’t heard it when starting the engine or while the car is at a stand-still; I think it’s more likely to occur when driving uphill. Honda ran the A/C in the shop for awhile, heard nothing, and made no repairs. Any thoughts?

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**Author:** ![willey](https://avatars.discourse-cdn.com/v4/letter/w/a9adbd/32.png) [@willey](https://community.cartalk.com/u/willey)\
**Post date:** [July 24, 2007, 4:35pm UTC](https://community.cartalk.com/t/ac-whine/2136/2 "2007-07-24T16:35:00Z")

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What do you mean by “new”? Is it a new Honda off the lot with no miles on it?

The whine could just be the way the A/C sounds when it is operating.

Please ignore STAR, he has no knowledge or experience in automotive A/C. He gives out false and misleading informatoin on A/C.

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**Author:** ![willey](https://avatars.discourse-cdn.com/v4/letter/w/a9adbd/32.png) [@willey](https://community.cartalk.com/u/willey)\
**Post date:** [July 24, 2007, 4:36pm UTC](https://community.cartalk.com/t/ac-whine/2136/3 "2007-07-24T16:36:37Z")

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Once again star you show your lack of knowledge in automotive A/C.

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**Author:** ![system](https://global.discourse-cdn.com/cartalk/original/3X/1/d/1d47c66a543aa6c5a7873bb2320858f978ff52ed.png) [@system](https://community.cartalk.com/u/system)\
**Post date:** [July 24, 2007, 6:51pm UTC](https://community.cartalk.com/t/ac-whine/2136/4 "2007-07-24T18:51:02Z")

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The car is new; I noticed the whine within the first one or two hundred miles, when I first took it out of the city on a “long” drive of say 50 miles. It’s more like a squeak lasting 5 to 10 seconds, which then stops. It may happen two or three times in a hundred miles of continuous driving.

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**Author:** ![system](https://global.discourse-cdn.com/cartalk/original/3X/1/d/1d47c66a543aa6c5a7873bb2320858f978ff52ed.png) [@system](https://community.cartalk.com/u/system)\
**Post date:** [July 24, 2007, 7:37pm UTC](https://community.cartalk.com/t/ac-whine/2136/5 "2007-07-24T19:37:57Z")

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If the noise is more like a squeak then I would suspect the drive belt might be loose or glazed.

When the A/C clutch engages it puts a load on the belt so if it is alittle loose it could be causing the noise.

Willey
