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Aircon not working properly

Aircon does not work properly,air not cold at drivers side and cool at passengers side

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Sounds to me like you got an airlock aircon works the same way as a fridge, try gently tapping unit or is there a bleed valve on yours?

Posted on Sep 05, 2009

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I have a 2003 Tahoe and when I put the heater on only the driver side get warm passenger side blow cold air


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Hot air from drivers side cool air from passenger side


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Oct 15, 2015 | 2009 Hyundai Sonata

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Why is it blowing warm on and off on the driver side and blowing cool on the passenger side?


Here's is a little background and a couple of thoughts. Turning to the background, first. The heater/air conditioner system in your 02 uses the same set of ducts located in the instrument panel. In turn, those ducts are linked to what can be considered miniature version of the cooling system in the engine compartment (yes, this is a greatly simplified version). The whole system, in fact, is run off the main heater/ac system, however, it has a separate series of controls so that it can function properly.

When you dial a temperature, a signal is sent to the heater/cooling system telling the system to open a series of baffles, directing a flow of heated or cooled anti-freeze/coolant to the proper "radiator" behind the face of the instrument panel. In turn, the fan system activates a series of doors behind the instrument panel so that the flow of air is directed through the "radiator" and into the passenger compartment. This is essentially the heater/cooling system work.

Now, you say that the driver's side is hot, while the passenger side is cool. What has happened is that the flow of heated coolant that is supposed to heat the passenger side of the duct system is blocked. Since there is no heat to warm the air that is flowing past the fins of the "radiator," the flowing air remains cool to cold, depending on the weather and ambient temperature. The result is that one side of the car remains cool. And, since the other side of the "radiator" is normal and the air is heated, it is warmed.

That is the most likely explanation for this.

Another possibility is that the baffles themselves are stuck and the coolant that is supposed to be directed to the passenger side is not being directed their.

Either way, your technician has some work ahead.

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2005 chevy equinox only blows cold ac out of passenger side


check the air vent of passenger side for any obstruction and secondly keep your thermostat full towards cold side make sure the ventilator is fully closed position and rotate the air selection knob clockwise and anti clock wise two three times than set it at the required position mainly your air selector seems to be malfunctioning there is nothing wrong with the ac

Aug 14, 2012 | 2005 Chevrolet Equinox

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I have a 2004 Silverado Crew Cab, the temperature on the drivers side air vents comes out HOT, all the time, while the passengers side can be controlled by the temperature control lever. If I push the A/C...


I think you will find that the mechanical control which changes the air flow from cold-hot-aircon has come off. I'm not familiar with your particular vehicle but usually the dash lever control is connected to a wire or lever to each air duct. If one of these is not connected then the duct will stay in the position where it was at when the control wire. lever came off. A good place to start.

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1995 Lesabre blows hot on drivers side, cold on passenger side


THIS IS A GUESS. Both sides probabley have "mix" dampers that regulate temp by mixing hot and cold air to make you comfortable. Passenger side must not work properly, stepper motor? Dirty actuator? Temp sensor on passenger not working? Don't honestly know but I'm not sure a do it yourselfer could figure it out. Sounds complicated.

Feb 19, 2010 | 1995 Buick Riviera

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96 grand caravan passenger side heat problem. There is a dual temp control, it works properly for the drivers side but the passenger side always blows HOT no matter what the temp control is set. The...


The wire on the back of the control is most likely broken, I had the opposite (drivers side allways cold) I dissconnected the solid light green wire and now have hot air all the time, I disconnect it in the summer for cool air, the part is very expensive, $70.00 at a salvage yard!

Jan 08, 2010 | 1996 Dodge Grand Caravan

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Driver side vent is blowing out hot air,passenger side is blows out cool air


Damper/flap for driver's side is probably stuck. Try moving the selector from cold to hot several times. Also, move the recirc/outside air control if the previous doesn't work.

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The air doors are controlled by actuators that on of them or so may need replacing.

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Most likely the blend door motor is defective.

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