Question about 2002 Buick LeSabre

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My a/c will not blow out air. You can feel the

My a/c will not blow out air. You can feel the air is cool though. What's the problem?

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Sounds like a blower motor not turning the blower. Could be elecrical. Check fuses that control the blower motor or blower motor relay. If these seem to be okay, locate the blower motor relay and try replacing it with a known working relay of the same style. If the A/C begins to blow, then you need a new relay. If not, you'll be looking into the blower motor or fan. Make sure your cooling fans function while your A/C is engaged.

Posted on Jul 03, 2009

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Posted on Jan 02, 2017

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I have a 98 mazda 626 an the a/c blows out hot air. How can i fix this?


Nope.
The coolant only cools the engine and produces heat for the cabin in the winter.
You need to find out if the compressor is working when the engine is running and the ac switch is on.
I could be low on freon or have an electrical problem.

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My ac is blowing cool air only, it is at full charge


You need to turn off the button that say AC on it. You need to change the temperature and the fan adjustment. If you have the AC button turned on, the fans will blow cool air even though the heat is turned on.

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Winndscreen does not clear unless have air conditioner on


Blowing air across the windscreen does not necessarily clear away condensate from the inside. Water vapor condenses on any cool surface, and humid air blowing across a cool windscreen will result in more condensate on the windscreen. Often the air that blows across the windscreen is just humid AND heated, and doesn't solve the problem.
The air conditioner system performs two functions. Not only does it cool the air, it also extracts moisture, resulting in dryer air. Once the dried air is re-heated in the defroster system, it should allow the moisture on the windscreen to evaporate.
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The heater in my car works while it is warming up but starts blowing cold air when i start driving? Is it the thermostat or heater core?


Hello Larry.
Most likely cause is a stuck open thermostat.
At idle there is no airflow through the radiator. As you begin to move the air that pushes through the rad cools the coolant reducing the coolant temperature.
To verify this, when you start your car from cold, feel the upper rad hose and the rad core.
It should stay cool until the thermostat opens or almost open.

Another possibility is the beginnings of a bad head gasket.
Usually though, it pushes coolant out of the system out the overflow tank if this is happening

.Best of the season to you.

KL

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2 Answers

Air conditioning is blowing out hot and cold air


It sounds like the dual climate control valve. It is supposed to close the valves when the a/c is turned on, but they get stuck sometimes. I have already replaced 2.

What happens is the valves get stuck and the engine heat will blow over the cool air making it feel warm, even though the a/c is working fine.

If it started out on one side of the car cooling better than the other than you can almost bet this is the problem.

They will be called a heater control valve by most auto parts stores. I think the part is Motorcraft YG378.

Another way to make sure this is the problem is to find the dccv and clamp the two top black hoses with pliers or something and see if the car gets cooler. It will still not get cold but this will let you know if the dccv is the problem.

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Air feels cool, but not blowing enought air


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If the A/C knob is not set to 0 at the time ignition was off, the fan could run for a little and then off itself.

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do you keep the fresh air button on ? if you do , you will feel heat or cool air come in with out the blower motor running

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