car ac blowing hot air when idle
The only time you can tell something is wrong if you stop and it starts to blow warm. But if you are 100 positive that the wording is correct there.
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So check the Freon level in the first place.
. I have tried a few things already and am stumped. In most cases its due to a loss of refrigerant in the system. Hot air blowing from a car air conditioner can be caused by a number of issues related to refrigerants compressors filters and so on.
But if you are 100 positive that the wording is correct there are few logical reasons. When the car is moving more air is forced over the unit likely keeping it cool enough to run however when the car come to a stop it loses that air flow and quickly heats up. Your car AC relies heavily on the motor fans to circulate the flow of freon when the car is at rest.
What could be the reason for this. The engine temp is also normal. Since the AC compressor is driven by the engine it doesnt pump as much refrigerant when youre at a stop or driving slowly.
Refrigerant thats in a liquid state makes its way to the evaporator where it boils as warm air from the cabin flows across it. There are several ways debris can get into your cars air conditioning system to make it not blow cold air. Cooling fans not workingthe reason it dont run hot when youre going 55 or 65 mph is because enough air is flowing through because of speed to cool the systemthen in stop and goNOT enough time or air flowing throughfix the cooling fan problembefore you RUN IT TOO HOT AND DAMAGE THE ENGINEtemp sensoror air in the system.
It is so damned hot down here that you wouldnt tolerate a busted AC. Your car AC is actually a heat exchanger that recirculates warm air from inside the cabin and replaces it with cold air. Most cars have two cooling fans one for the condenser and the other for the radiator.
I have a 2011 focus with AC blowing warm at idle but cold at higher rpm. Sometimes i switch it off and on then it blows cool for a while then starts blowing hot again Reply BlueDevil Pro on February 7 2020 at 913 am. If it does not move with the adjustments and commands there is a problem with the blend door actuator and it will need to be replaced.
Inadequate airflow over the condenser may cause this condition. This is another reason for a car AC not blowing cold when idling. Ill be honest with you this question as written is exactly the opposite of what is typically seen.
Your AC system is low on refrigerant. Is there any test I could do to determine which component is at fault. Cruze ls auto trans 83640 ac drivers side blows hot air while passengers side.
As stated my cars AC will blow cold when idle but when I start moving the AC blow hot air. If the ac isnt blowing cold air when the car is idling this is an indication that there may be a problem with the AC system high pressure hose. You have two hoses on your AC compressor one big and one small it is the small one that may have a sight glass on it.
The compressor of the AC system moves heat from the radiator to the condenser. What happens is this. So I checked low pressure and at idle it was bouncing around from 100 to 120psi and when rpms were increased to 2500 pressure went down to 35psi and was blowing cold air.
The fans are working. 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. Inoperative electric radiator cooling fans are a very common reason for hot air at idle cold air while driving.
We checked the pressure with one of those do it yourself refill kits and it is in the normal range so we were afraid to add any. Up to 8 cash back The purpose of the high pressure hose is to increase and decrease AC pressure during different driving conditions. It is also possible that there is a problem with the AC compressor.
AC stops cooling and blows warm air when the vehicle is idling for an extended period of time such as sitting in traffic. HEATER BLOWS HOT AT IDLE COLD WHEN DRIVING DEMONSTRATED ON DODGEIf you have a car that blow warm hot air at idle but when you start driving down the highway. Another common reason for car air conditioner not blowing cold air when idling is an overheated engine.
Now for the feeling of warm air at idle if your car has a sight glass on the receiver dryer assembly or the small AC hose. If you lived in Florida where I do you would have taken it in to get it fixed the first time this happened. If the system is low on refrigerant it will show up as AC blows warm at idle and blows colder when the engine is running at higher RPMs.
The AC blows cool when idel but when moving it suddenly starts blowing hot air. When your car starts moving the airflow restores the cooling ability to your system. If your car ac pauses the flow of air when idling but turns back on when you begin to move the first place you should turn your eyes is the motor fans.
Why does my AC get warm at idle. This problem is a known issue See Bulletin No. Bad or Failing Fan Clutch.
When idle the ac will work just fine and eventually start to blow hot air. The outside temp was around 90. Your cars AC blows warm at idle and cold at higher RPMs because you have been waiting for it to repair itself instead of taking it to get repaired.
I show in this video what was causing the problem and how I fixed it on my 2005 Hyundai Santa Fe. My AC started blowing warm air when sitting idle. Refilling the Freon in your car ac system can be the solution for car air conditioners blowing hot air when idle.
Thus the AC would work while the vehicle is in motion and overheat and stop when the car is stopped and idling. I drive a 2017 Perodua Bezza Malaysia. Answer 1 of 3.
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