# Failed speedometer when it's cold outside

**URL:** <https://community.cartalk.com/t/failed-speedometer-when-its-cold-outside/24436>\
**Category:** Maintenance/Repairs\
**Created:** [January 5, 2009, 8:57pm UTC](https://community.cartalk.com/t/failed-speedometer-when-its-cold-outside/24436 "2009-01-05T20:57:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![fortunate4](https://avatars.discourse-cdn.com/v4/letter/f/a9adbd/32.png) [@fortunate4](https://community.cartalk.com/u/fortunate4)\
**Post date:** [January 5, 2009, 8:57pm UTC](https://community.cartalk.com/t/failed-speedometer-when-its-cold-outside/24436/1 "2009-01-05T20:57:15Z")

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Why does my 2003 Chevy Trailblazer speedometer stop working when it’s really cold outside? Will this be expensive to repair and what does it involve?

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**Author:** ![autobuzzy](https://avatars.discourse-cdn.com/v4/letter/a/b3f665/32.png) [@autobuzzy](https://community.cartalk.com/u/autobuzzy)\
**Post date:** [January 13, 2009, 4:04pm UTC](https://community.cartalk.com/t/failed-speedometer-when-its-cold-outside/24436/2 "2009-01-13T16:04:03Z")

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I have the same problem. Usually after about 1 1/2 hours of driving between 60-70 mph it will begin to drop back to zero. If I stop the vehicle for 5 or 10 mimutes it will repond for another 1 1/2 hours. ??? help!