# Temp light occasionally comes on

**URL:** <https://community.cartalk.com/t/temp-light-occasionally-comes-on/59252>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, cavalier, overheating, lights, radiators\
**Created:** [December 29, 2010, 3:27am UTC](https://community.cartalk.com/t/temp-light-occasionally-comes-on/59252 "2010-12-29T03:27:17Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![lorryx](https://avatars.discourse-cdn.com/v4/letter/l/ecae2f/32.png) [@lorryx](https://community.cartalk.com/u/lorryx)\
**Post date:** [December 29, 2010, 3:27am UTC](https://community.cartalk.com/t/temp-light-occasionally-comes-on/59252/1 "2010-12-29T03:27:17Z")

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I have a 96 cavalier, recently had the radiator flushed and filled with 50/50. no leaks, tanks full, and not running hot but temp light comes on while driving… could it be the thermostat or a hose?

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**Author:** ![oblivion](https://avatars.discourse-cdn.com/v4/letter/o/3ab097/32.png) [@oblivion](https://community.cartalk.com/u/oblivion)\
**Post date:** [December 29, 2010, 4:50am UTC](https://community.cartalk.com/t/temp-light-occasionally-comes-on/59252/2 "2010-12-29T04:50:38Z")

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Yes, it could be the thermostat. You say the temp light comes on but it’s not running hot–how do you know?

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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:** [December 29, 2010, 5:24am UTC](https://community.cartalk.com/t/temp-light-occasionally-comes-on/59252/3 "2010-12-29T05:24:19Z")

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It could be a defective sensor too. It’s happened before.

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**Author:** ![lorryx](https://avatars.discourse-cdn.com/v4/letter/l/ecae2f/32.png) [@lorryx](https://community.cartalk.com/u/lorryx)\
**Post date:** [December 29, 2010, 6:04am UTC](https://community.cartalk.com/t/temp-light-occasionally-comes-on/59252/4 "2010-12-29T06:04:03Z")

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just going by the gauge

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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:** [December 29, 2010, 1:50pm UTC](https://community.cartalk.com/t/temp-light-occasionally-comes-on/59252/5 "2010-12-29T13:50:16Z")

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Are you sure it’s the temp light and not the low coolant light?

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**Author:** ![lorryx](https://avatars.discourse-cdn.com/v4/letter/l/ecae2f/32.png) [@lorryx](https://community.cartalk.com/u/lorryx)\
**Post date:** [December 29, 2010, 2:53pm UTC](https://community.cartalk.com/t/temp-light-occasionally-comes-on/59252/6 "2010-12-29T14:53:58Z")

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i guess it could be, i’ll have to double check that, THANKS!