# 2008 Chevrolet HHR AC problem

**URL:** <https://community.cartalk.com/t/2008-chevrolet-hhr-ac-problem/167087>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, hhr\
**Created:** [July 10, 2020, 4:20pm UTC](https://community.cartalk.com/t/2008-chevrolet-hhr-ac-problem/167087 "2020-07-10T16:20:42Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![George40](https://avatars.discourse-cdn.com/v4/letter/g/b77776/32.png) [@George40](https://community.cartalk.com/u/George40)\
**Post date:** [July 10, 2020, 4:20pm UTC](https://community.cartalk.com/t/2008-chevrolet-hhr-ac-problem/167087/1 "2020-07-10T16:20:43Z")

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Temperature switch when the ac is on the temperature goes hot to cold back and forth

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**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\
**Post date:** [July 10, 2020, 6:29pm UTC](https://community.cartalk.com/t/2008-chevrolet-hhr-ac-problem/167087/2 "2020-07-10T18:29:39Z")

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Are you saying the air alternates between hot and cold? That sounds more like the AC compressor.

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**Author:** ![tcmichnorth](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tcmichnorth/32/25126_2.png) [@tcmichnorth](https://community.cartalk.com/u/tcmichnorth)\
**Post date:** [July 12, 2020, 11:03am UTC](https://community.cartalk.com/t/2008-chevrolet-hhr-ac-problem/167087/3 "2020-07-12T11:03:46Z")

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> **[Car AC blows cold then blows warm — Ricks Free Auto Repair Advice](https://ricksfreeautorepairadvice.com/car-ac-blows-cold-blows-warm/)**
>
> If your car AC blows cold then warm, the cause can be a low system charge, moisture in the system, a malfunctioning expansion valve

This is a pretty good article that can explain this.