Why does the ac on my 2000 buick lesabre only blow cold on the passenger side? it does blow air on the drivers side but not cool air

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22 Jun, 2012

  • 64%
    Solved this issue
  • 86min
    Time to fix
  • 61%
    Recommend to DIY
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This problem is likely due to a failed part called the blend door, this door has an electric motor drive, to replace it requires the dash be removed form the car entirely. The blend door is a door that moves back and forth between the AC core and the Heater core to provide cold hot or a blend of air flows from both cores to give the desired temperature. Other issues can cause this and due to the cost or repair a through diagnostic should be done to confirm my guess is correct about the door being the problem.
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