1999 Buick Regal Logo
Posted on Nov 15, 2008
Answered by a Fixya Expert

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1999 Buick Regal drivers side AC blows hot

Passenger side AC blows cold. this happened immediately after replacing a bad battery. AC worked fine on both sides while driving to shop for battery replacement, but with new battery only hot air from drivers side. Found posts from two other owners with the same problem, but no advice found yet. Help

  • saddie44509 Dec 12, 2008

    my air kicks off then back on its seems like the heat is always on

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1 Answer

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  • Master 405 Answers
  • Posted on Dec 25, 2008
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Joined: Nov 21, 2008
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The battery change and the problem, may coindental or maybe not, your air regulator door actuator is probably stripped our just worn out, the regulator is attached to the damper that controls the drivers side air over the two coils. shouldn't be to hard to locate, but will require laying on your back and removing the under dash panel. it will probably be a small rectangular shaped module mount to the duct at a damper door! i hope this helps, if you want exact instructions they can be found at alldatadiy.com for 20 bucks. Merry Christmas!

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