why is my car ac blowing hot and cold air

A dirty cabin air filter could be causing the problem since air thats not entering cleanly will cause the AC to not work at peak efficiency. If the heater is blowing cold air and the car is overheating it is likely that the problem is related to the engine cooling system as well.

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When it gets above 90 degrees out side it will start blowing hot.

. Why Is My Car Air Conditioner Not Blowing Cold Air Rx Mechanic. Why does the heat in my car get cold when I stop. If this is the case be sure to take it into a mechanic as quickly as you can.

If its hot in a situation of car air conditioner blowing hot air then its an engine problem. If this isnt the case the next car air conditioning troubleshooting tip is to see if there are any leaks. On 2001 Chevrolet Express 3500 The ac has very cold air idling.

When driving the ac air will blow cold then not as cold and back and forth but will keep the cab cool. Why Is Your Cars Ac Blowing. Other possibilities include a faulty compressor broken cooling fans or an issue in your electrical system.

How much does it cost to fix AC in car. Why does my ac blow cold air warm air cold air. Refrigerant is a liquid that circulates through your cars AC system expanding and contracting as it removes heat and humidity from the cabin.

Thankfully in this guide we will review each of these car AC problems in detail. Weve got your back. I have cleaned the coil.

Newer Post Older Post Home. A car AC thats intermittently cold in Chino CA can also be due to a blocked evaporator drain or an overcharged systema freezing problem can also usually be identified by customers if there are puddles of water under the car. A car AC blowing hot air is often the result of a refrigerant leak.

Why does my car AC blow hot and cold air at the same time. Any blockage in these lines can prevent warm water from reaching the core and thus allow cold water to flow through it. The compressor is engaged.

Like having a blocked condenser having broken cooling fans can cause a lack of cooling at your condenser and could cause your car AC blowing hot air. In the late afternoons however when the temperature is above 90F I get cold air for 2-3 minutes then I hear a 2-5 second groan followed by about 5-10 seconds of warm air and then everything returns back to normal again with cold. When the temperature outside is cooler say less than 80F and I turn my AC on everything works great and I get nice cold air in the car.

A leak can happen because of an old hose as well as a rusted or punctured evaporator. The fans could actually be broken like a burnt out motor bad mount a chipped fan blade or they could simply have an electrical problem like a blown fuse or burnt out relay. The most common cause of an AC system blowing warm air is a lack of refrigerant though you may also have a problem with your condenser.

The expansion valve distributes the proper amount of refrigerant to your evaporator. The following are some issues that may be causing the heater to blow cold air. So if youre having a similar problem dont worry.

Mostly the compressor of the air conditioner transfer heat from the radiator to the condenser if your car has become over heated and heat transfers alter efficiency your car air conditioner will stop blowing cold air when it is idle. There might be trapped air in the cooling system or the heater core could be partially cloggedTwo heater lines provide engine coolant to the heater core. If your AC flip-flops from hot to cold and back again your expansion valve could be failing.

How To Fix Car Ac That Blows Hot Air Ac Compressor Ac Compressor Car Air Conditioner Repair Share this post. You can check for puddles under you car as well as check the level of your Freon. Hot air blowing from a car air conditioner can be caused by a number of issues related to refrigerants compressors filters and so on.

If the valve is blocked the refrigerant flow could be restricted or could be too unrestricted.

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