# 2009 Ford Flex whistling sound while driving

**URL:** <https://community.cartalk.com/t/2009-ford-flex-whistling-sound-while-driving/125690>\
**Category:** Maintenance/Repairs\
**Tags:** ford, flex\
**Created:** [September 25, 2018, 5:43pm UTC](https://community.cartalk.com/t/2009-ford-flex-whistling-sound-while-driving/125690 "2018-09-25T17:43:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![JohnMerrillSr](https://avatars.discourse-cdn.com/v4/letter/j/e47c2d/32.png) [@JohnMerrillSr](https://community.cartalk.com/u/JohnMerrillSr)\
**Post date:** [September 25, 2018, 5:43pm UTC](https://community.cartalk.com/t/2009-ford-flex-whistling-sound-while-driving/125690/1 "2018-09-25T17:43:20Z")

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Hearing a whistle sound while driving but it stops when the brakes are applied.

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [September 25, 2018, 5:53pm UTC](https://community.cartalk.com/t/2009-ford-flex-whistling-sound-while-driving/125690/2 "2018-09-25T17:53:39Z")

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May be your brake wear indicator saying your brake pads are worn out. That is usually a screeching sound but for safety’s sake, have the brakes checked and the source may be found.