# Chevy suburban engine hot a/c turned off

**URL:** <https://community.cartalk.com/t/chevy-suburban-engine-hot-a-c-turned-off/188596>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet\
**Created:** [January 19, 2023, 8:11pm UTC](https://community.cartalk.com/t/chevy-suburban-engine-hot-a-c-turned-off/188596 "2023-01-19T20:11:01Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![jeninfo\_183795](https://avatars.discourse-cdn.com/v4/letter/j/9fc29f/32.png) [@jeninfo\_183795](https://community.cartalk.com/u/jeninfo_183795)\
**Post date:** [January 19, 2023, 8:11pm UTC](https://community.cartalk.com/t/chevy-suburban-engine-hot-a-c-turned-off/188596/1 "2023-01-19T20:11:02Z")

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I have an ongoing issue with the dash warning “engine hot a/c turned off”. When this happens, the engine light is on and the temp gauge does not function (stays flat on the left). This started right after I had the transmission replaced (don’t know if this could be relevant). Been back to the shop 3x - replaced the thermostat - then flushed the coolant system (no leaks). After each visit the car is good for a dozen miles or so. But then the same problem reoccurs. The engine is NOT overheating. Any ideas???

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**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\
**Post date:** [January 19, 2023, 8:19pm UTC](https://community.cartalk.com/t/chevy-suburban-engine-hot-a-c-turned-off/188596/2 "2023-01-19T20:19:12Z")

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Sounds like you have a plan.

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [January 19, 2023, 8:39pm UTC](https://community.cartalk.com/t/chevy-suburban-engine-hot-a-c-turned-off/188596/3 "2023-01-19T20:39:20Z")

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> [@jeninfo\_183795](#):
>
> This started right after I had the transmission replaced

Maybe that new transmission is overheating?

Tester

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**Author:** ![asemaster](https://avatars.discourse-cdn.com/v4/letter/a/5f9b8f/32.png) [@asemaster](https://community.cartalk.com/u/asemaster)\
**Post date:** [January 19, 2023, 10:40pm UTC](https://community.cartalk.com/t/chevy-suburban-engine-hot-a-c-turned-off/188596/4 "2023-01-19T22:40:35Z")

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Sounds like a faulty engine coolant temp sensor to me. What’s the fault code and stored data say?