# Air conditioning failing

**URL:** <https://community.cartalk.com/t/air-conditioning-failing/19519>\
**Category:** Maintenance/Repairs\
**Tags:** explorer\
**Created:** [September 13, 2008, 1:22pm UTC](https://community.cartalk.com/t/air-conditioning-failing/19519 "2008-09-13T13:22:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![hotexplorer](https://avatars.discourse-cdn.com/v4/letter/h/a8b319/32.png) [@hotexplorer](https://community.cartalk.com/u/hotexplorer)\
**Post date:** [September 13, 2008, 1:22pm UTC](https://community.cartalk.com/t/air-conditioning-failing/19519/1 "2008-09-13T13:22:29Z")

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My wife’s 2005 Explorer air conditioning system takes about 40 minutes to get cold when started from rest and parked in a hot yard. The condenser is clean, compressor engages, and freon level is good and has about 40psi pressure. When cold air finally comes it starts on passenger side then slowly migrates across to drivers side  
  
 Any ideas gratefully recieved.

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**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\
**Post date:** [September 13, 2008, 1:38pm UTC](https://community.cartalk.com/t/air-conditioning-failing/19519/2 "2008-09-13T13:38:26Z")

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Check to see if the vent doors are operating as they should be.

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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:** [September 14, 2008, 1:49am UTC](https://community.cartalk.com/t/air-conditioning-failing/19519/3 "2008-09-14T01:49:34Z")

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Low side pressure alone tells you little. You need to determine high side pressure and compare both pressures to a chart with temp. You also need to determine the compressor on and off times.

That said, " When cold air finally comes it starts on passenger side then slowly migrates across to drivers side" points to a control problem. does this Exploder have fancy pants electronic controls or knobs?
