Question about Buick Regal

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99 Buick Regal LS dual climate control. No heat passenger side.

99 Buick Regal LS dual climate control. Driver side heat works but passenger side blows cold air. Ambient temp. reading correct. Passenger display working ,moved all the way to warmest setting, still cold air.

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The motor for the passenger side
blend door is shot

Posted on Jan 12, 2010

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You can manually move the rod from left to right to get both sides to work. it is behind the glove box and a little to the left move the rod from one side to the other.

Posted on May 25, 2013

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Posted on Jan 02, 2017

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My 98 Buick Park Avenue has driver and passenger AC settings but the passenger side always blows hot air. Very cold on drivers side. Why??Can't stand the heat even when vent is closed.


Try unplugging the battery for 5 min's to re-sync the dual climate controls. If that fails it is likely that the air temperature control blend door is sticking to in the heated air position, this is either due to the door being warped and sticking inside the duct work or the electric actuator for the door being defective, both are usually replaced.

Jun 21, 2017 | Buick Cars & Trucks

1 Answer

97 Buick Regal climate control


Hi Levi, Im AL the owner of Big As Auto Repair.

Levi, If you have the same climate control, then below is a link to a repair video for your climate control. Sorry, this is the part 3 video, look a the side to find the part 2 video and watch it first.

1997 03 Buick Regal climate control display repair part 3

Jan 09, 2015 | 1997 Buick Regal

2 Answers

Location of blend door actuator on 2001 Buick Regal


driver side actuator for blend door is electric servo controlled. It could be jammed or computer sending it in wrong direction. Unit is located on driver side of heater case.

Jun 03, 2014 | 2001 Buick Regal

1 Answer

Heat blows hot on passenger side but cool on driver's side


Most likely it is the climate control unit. Had the same issue with my 99 Regal, replaced the climate control unit and haven't had any issues since. Might try Digital Dash Solutions on eBay, they will ship you a refurb at1/3 price of buying from a dealer if they have one available. If not, they also have a climate control repair service. I'm not certain that they fix Pontiac products, but it wouldn't hurt to ask.

Dec 29, 2011 | 2001 Pontiac Grand Prix

1 Answer

96 buick regal, w/dual climate control, w/ac on blows hot air on driver side and cold air on the passenger side


It can be low on freon,or,the actuator motor foor that side blend door is bad,if so,the dash has to be removed to replace the actuator motor.

Jun 07, 2010 | 1996 Buick Regal Olympic Gold

2 Answers

My AC blows hot air out the driver's side and cold


My 02 Century has dual temp controls . One for driver for passenger. Make sure you don't have the dual climate enabled and just set for heat on your side and AC on the passengers

Apr 04, 2010 | 2001 Buick LeSabre

1 Answer

Automobile air conditioning on max cool, blows hot air on passenger side tried dual climate control settings still cold on driver hot on passenger


I had the same problem when i was working on my 1999 Buick Regal and had to disconnect the battery. I didn't reconnect in the same way that I disconnected the battery from the terminal and noticed that the driver side had no heat or air but the passenger side did. I then disconnected the battery again and reconnected it the same way and now have heat and air on both the driver and passenger side. Hope this helps. Good Luck!

Apr 14, 2009 | 1998 Buick Regal

1 Answer

Heater Passenger side doesn't change


Most likely the blend door motor is defective.

Oct 29, 2008 | 1993 Buick Regal

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