# Subaru Temp rises when AC on

**URL:** <https://community.cartalk.com/t/subaru-temp-rises-when-ac-on/36541>\
**Category:** Maintenance/Repairs\
**Tags:** forester, subaru\
**Created:** [September 12, 2009, 8:52pm UTC](https://community.cartalk.com/t/subaru-temp-rises-when-ac-on/36541 "2009-09-12T20:52:02Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![kercrump](https://avatars.discourse-cdn.com/v4/letter/k/858c86/32.png) [@kercrump](https://community.cartalk.com/u/kercrump)\
**Post date:** [September 12, 2009, 8:52pm UTC](https://community.cartalk.com/t/subaru-temp-rises-when-ac-on/36541/1 "2009-09-12T20:52:02Z")

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Thanks all. I have a 2000 Forester L. So far so good but new problem. Driving in 60ish outside temp indicator says all fine. As soon as i turn on the A/C, up we go to redline in under 1min. Turn on heater or off A/C back to normal. Tried in garage but all was okay. Both radiator fans working well. No visible coolant leak. Seems weird that alls good in normal driving but A/C on is a problem. Any thoughts? Thanks.