# Car AC stars cooling in high rpm

**URL:** <https://community.cartalk.com/t/car-ac-stars-cooling-in-high-rpm/101542>\
**Category:** Maintenance/Repairs\
**Tags:** toyota, camry\
**Created:** [March 16, 2017, 2:59am UTC](https://community.cartalk.com/t/car-ac-stars-cooling-in-high-rpm/101542 "2017-03-16T02:59:38Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![Jung\_Moon](https://avatars.discourse-cdn.com/v4/letter/j/3bc359/32.png) [@Jung\_Moon](https://community.cartalk.com/u/Jung_Moon)\
**Post date:** [June 22, 2018, 4:53am UTC](https://community.cartalk.com/t/car-ac-stars-cooling-in-high-rpm/101542/21 "2018-06-22T04:53:12Z")

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I know this thread is old but I was wondering if you ever found what the cause was. I have a 2008 V6 3.5L Chevy Impala and it does the exact same thing. Once I rev the engine above 4k rpm the AC starts cooling and works fine afterward even if you shut off the car and start it again. But if it sits for a while, then you have to rev it up to 4k again to get the AC working. I don’t have the tools to measure the pressures on the AC lines but it seems like it is the exact same problem you were having.

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