# Noise like a helicopter

**URL:** <https://community.cartalk.com/t/noise-like-a-helicopter/59507>\
**Category:** Maintenance/Repairs\
**Tags:** hyundai, elantra\
**Created:** [January 4, 2011, 3:47pm UTC](https://community.cartalk.com/t/noise-like-a-helicopter/59507 "2011-01-04T15:47:36Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![jpettengill](https://avatars.discourse-cdn.com/v4/letter/j/50afbb/32.png) [@jpettengill](https://community.cartalk.com/u/jpettengill)\
**Post date:** [January 4, 2011, 3:47pm UTC](https://community.cartalk.com/t/noise-like-a-helicopter/59507/1 "2011-01-04T15:47:36Z")

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My 2010 Hyundai Elantra with 6500 miles on it has started making a noise that sounds as if a helicopter is hovering overhead. This occurs intermittently when the A/C is running. Any ideas?

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**Author:** ![ken\_green](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/ken_green/32/816_2.png) [@ken\_green](https://community.cartalk.com/u/ken_green)\
**Post date:** [January 4, 2011, 6:07pm UTC](https://community.cartalk.com/t/noise-like-a-helicopter/59507/2 "2011-01-04T18:07:05Z")

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Look outside for a helicopter.  
or  
tell us more.

Where is the noise ?  
Inside the dash ?  
under the hood ?

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**Author:** ![jpettengill](https://avatars.discourse-cdn.com/v4/letter/j/50afbb/32.png) [@jpettengill](https://community.cartalk.com/u/jpettengill)\
**Post date:** [January 4, 2011, 6:23pm UTC](https://community.cartalk.com/t/noise-like-a-helicopter/59507/3 "2011-01-04T18:23:04Z")

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The first thing I did was look for a helicopter, none found. Then I realized that the sound was coming from under the hood and disappeared when I turned off the A/C.

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**Author:** ![ken\_green](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/ken_green/32/816_2.png) [@ken\_green](https://community.cartalk.com/u/ken_green)\
**Post date:** [January 4, 2011, 6:30pm UTC](https://community.cartalk.com/t/noise-like-a-helicopter/59507/4 "2011-01-04T18:30:22Z")

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Get thee to the dealer for warranty repairs.

It’s related to the compressor or its clutch.  
At only 6500 miles is it a new noise ?

With the hood up you can look for the noise source while someone else cylcles the a/c.  
If it’s a compressor without enough oil in it when new, it won’t last long making this noise.  
If it is debris trapped behind the clutch, remove the tumble weed.

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**Author:** ![oldschool](https://avatars.discourse-cdn.com/v4/letter/o/e19adc/32.png) [@oldschool](https://community.cartalk.com/u/oldschool)\
**Post date:** [January 4, 2011, 6:34pm UTC](https://community.cartalk.com/t/noise-like-a-helicopter/59507/5 "2011-01-04T18:34:41Z")

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If the Feds were following you they would be using one of those “silent” helicopters, really I saw it in a movie.

Is it that you are a bit hesitant to speak with a service Advisor about this?

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**Author:** ![jpettengill](https://avatars.discourse-cdn.com/v4/letter/j/50afbb/32.png) [@jpettengill](https://community.cartalk.com/u/jpettengill)\
**Post date:** [January 4, 2011, 6:48pm UTC](https://community.cartalk.com/t/noise-like-a-helicopter/59507/6 "2011-01-04T18:48:19Z")

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We have no tumbleweed in Florida  
We do have skeptical service advisors  
I had planned to visit my dealer, just wanted some background info other than “there’s a funny noise” because the typical response is "we can’t reproduce the noise so we can’t help you"  
Thanks