A/C Vents Blow Cold on Passenger Side But Warm Drivers

Problem with my 1997 Buick.
Engine size = 3.3L V6.
Repairs for this problem = A/C compressor, orifice tube and drier replaced about 1 year ago. The problem I have is that when you turn the ac on the cool air only comes out the 2 vents on the passenger side. The 2 vents on the drivers side have warm air blowing out. A/C is controls are set to max air and max cold on the temp control.

Answer: Most common problem is a bad temperature door actuator if it does have dual zone A/C. This actuator controls the temperature door for that side. Dual zone systems have a temp door for each side.

If the car does not have dual zone climate control, this sounds like a problem that some mechanics miss. This problem is a low freon charge in the system. It will not be apparent if just looking at freon gauge pressures- they will be normal. But a system that is 1/2 pound low will cause the passenger side vents to blow cool or cold air, and the drivers side to be less cool or even warm on this car. There is simply not enough freon capacity in the system to cool the air to the drivers side. Only way to be sure is to drain and measure the freon in the system.

Where is temperature door actuator?

Answer: We would need to know what make and model Buick you are asking about. Are you looking for the drivers side or passenger side actuator?

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Comments (75)
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  • Guest - Chris

    Where is the actuator for 2013 GL450. The driver side is not blowing cold air. It is temperament. Sometimes it will blow warm air, sometimes it will blow cold air. we just recharged the freon on April and today brought it to mercedes and the only fix they did is recharge the freon and they said it is working perfect. we just did that a few months ago.. Mercedes said, they couldnt find any leak. what could be the problem. I feel like, they just charge it so they can charge me money.

  • Guest - Chris

    Where is the actuator for 2013 GL450? Thank you

  • Guest - Samuel

    Where is the blend actuator door on a 2013 Ford Taurus Limited?

  • Guest - Dianne

    I have a 2005 Chevy Silverado and mine does same thing and has for 3 years. No one can seem to figure it out

  • Guest - Lorenzo

    Where is temperature door actuator in Mercedes Benz gl550?

  • Guest - Cathy

    Thd 2002 Buick Lesabre A/c blows out hot air on the driver's side and cold air on passenger side.

  • Guest - Cathy

    The car is 2002 Buick Lesabre

  • Guest - BENJAMIN Viera

    My father's suv Mazda passenger side is cold buthe driver side blow hot air

  • Guest - Tami

    Same problem blowing warm air on the driver side colder on the passenger 06 Pontiac Grand Prix found the actuator it is running fine no teeth are broken on the inside what else could it be

  • Guest - Charlie Lee

    Where is the temp door actuator on 2014 Toyota avalon?

  • Guest - TBaby

    2013 Ford edge cool air on passenger side heat blowing on drivers side, were is the actuator for this vehicle.

  • Guest - Lisa Rysz

    My Pontiac G6 2.4L in blowing cold air from the AC on the passenger side but only slightly cool air on the driver's side. Why? and how do I fix this?

  • Guest - Allen

    where is the actuator located on the drivers side on a 2001 Pontiac grand prix

  • Guest - billy

    Ac on hot on left cold on right

  • Guest - Mary

    '08 Chevy Impala when air conditioner is on, hot air on driver's side & cold air on passenger side. If actuator, where is it located?

  • Guest - Mary

    My 2008 Chevy Impala just started blowing hot air on driver's side & cold air on passenger side. All this when air conditioning is on.

  • Guest - Jay

    Where is the temperature door actuator on a 2004 buick century

  • Guest - CoCo

    Where is location of the door actuator on a Chevy Impala 2010

  • Guest - Paul

    Ford focus 2009 why is hot air coming out at my feet on the drivers side when the ac is off and it's not coming out anywhere else?

  • Guest - Paul

    Ford focus 2009 why is hot air coming out at my feet on the drivers side when the ac is off

  • Guest - Keith

    How about 2007 Rav 4, where is actuator?

  • Guest - Angela

    04 Chevy Silverado
    Duel AC
    Will be driving with AC on and the drivers side will start blowing hot air while pasenger side continues to blow cold. Can turn the key off and restart andnir will start blowing cold again. It doeant do it all the time.

  • Guest - Sara

    In reply to: Guest - Angela

    Where is the drivers side actuator located

  • Guest - Emmanuel

    In reply to: Guest - Angela

    I also hace a silverado 2004 and it does the exact same thing... any solutions?

  • Guest - Thomas

    In reply to: Guest - Angela

    Mine is doing the same thing. Only my passenger side is blowing cold, drivers side is like an oven. I have a 2005 GMC Sierra SLT 6.0L 2500HD Crew Cab. I also have duel climate controls, I just filled the AC Unit, its on the high side of normal pressure according to the gauge. I dont know what else i can do, i have been looking for answers and yet, nothing..

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