# 1999 Expedition AC Problem

**URL:** <https://community.cartalk.com/t/1999-expedition-ac-problem/33062>\
**Category:** Maintenance/Repairs\
**Tags:** ford, expedition\
**Created:** [July 8, 2009, 4:15pm UTC](https://community.cartalk.com/t/1999-expedition-ac-problem/33062 "2009-07-08T16:15:02Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jhmciver](https://avatars.discourse-cdn.com/v4/letter/j/51bf81/32.png) [@jhmciver](https://community.cartalk.com/u/jhmciver)\
**Post date:** [July 8, 2009, 4:15pm UTC](https://community.cartalk.com/t/1999-expedition-ac-problem/33062/1 "2009-07-08T16:15:02Z")

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My 1999 Expedition was blowing cool air through the AC. The rear air was much cooler than the front.  
  
 I put freon to the full mark (45PSI) and the AC got worse.

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**Author:** ![Beadsandbeads](https://avatars.discourse-cdn.com/v4/letter/b/c57346/32.png) [@Beadsandbeads](https://community.cartalk.com/u/Beadsandbeads)\
**Post date:** [July 10, 2009, 3:53am UTC](https://community.cartalk.com/t/1999-expedition-ac-problem/33062/2 "2009-07-10T03:53:53Z")

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There could be several problems that cause the undercooled air in the front, like a blend door problem. You have probably now overcharged it.