# 2001 Chevrolet Silverado 1500 - Sound after shutting off

**URL:** <https://community.cartalk.com/t/2001-chevrolet-silverado-1500-sound-after-shutting-off/166202>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet\
**Created:** [June 23, 2020, 1:33am UTC](https://community.cartalk.com/t/2001-chevrolet-silverado-1500-sound-after-shutting-off/166202 "2020-06-23T01:33:26Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Shelton](https://avatars.discourse-cdn.com/v4/letter/s/bb73d2/32.png) [@Shelton](https://community.cartalk.com/u/Shelton)\
**Post date:** [June 23, 2020, 1:33am UTC](https://community.cartalk.com/t/2001-chevrolet-silverado-1500-sound-after-shutting-off/166202/1 "2020-06-23T01:33:26Z")

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sounds like a fan or something is still running after the truck is turned off. not under the hood. from underneath the truck.

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**Author:** ![pleasedodgevan2](https://avatars.discourse-cdn.com/v4/letter/p/ad7895/32.png) [@pleasedodgevan2](https://community.cartalk.com/u/pleasedodgevan2)\
**Post date:** [June 24, 2020, 5:33am UTC](https://community.cartalk.com/t/2001-chevrolet-silverado-1500-sound-after-shutting-off/166202/2 "2020-06-24T05:33:44Z")

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The most common answer is the evaporative emissions system. Open the gas cap and see if it stops making the noise.