air conditioner only works when driving

Warm the engine up turn on the ac until it malfunctions and then spray a garden hose on the condenser with everything running. AC is cold only when the engine is revving above certain rpm.

Car Ac Compressor Stays On All The Time

When its level goes lower than the acceptable level you will face the issue of car air conditioner not blowing cold air when idling.

. Reasons your air conditioning is only working when driving include - AC Condenser Fan AC Condenser Blockage. When the car is moving versus stopped there is more air flow over the condenser the heat exchanger in front of the radiator and that airflow is essential to system operation. So more power applied to the engine means more power applied to the compressor which.

There is a good chance your AC compressor clutch has worn enough to prevent it from engaging when hot. The compressor can pump the Freon more easily when the car is running at a high speed on the highway but it struggles when the car sits idle. Inspect the condenser fan motor.

Answer 1 of 12. AC Blows Cold Air Only When Driving 30 MPH or Faster. One is that your condenser fan s is either not working or is worn out to the point that it cant spin sufficiently fast to bring enough air through the condenser.

When at a stop the air is warmbut if I put it into neutral and rev the engine to lets say 2000 rpm AC gets colderor when Im driving obviously. If you are lucky you may be able to fix it for. I have set that to cold setting and.

I have a 2013 smart and since I bought it a year ago the air conditioner only blows cold when driving. The AC works best when the roadspeed is above about 25 and engine speed is above 1500 rpm. It is easy enough to check to see if the fans are working or not.

Nevada_545 March 27 2011 229am 9. The Freon gets used up with the running of the air conditioning. There can be two possible reasons why your AC is only blowing cold air at high speeds.

Smoke blowing at you A faulty electric blower motor can lead to an uncomfortable driving experience. The AC on my 2008 20 L turbo now only works when I am driving at speeds of at least 30 MPH. The air conditioning compressor will turn off at the slightest rise of heat due to excessive HEAD PRESSURE - however the engine will not show any signs of overheating.

It does not have duel climate controls in the temperature settings unit but it does have a hotcold wheel located on the dash between the dirvers and passenger vents right in the middle. 99 of the time this problem is caused by insufficient air flow into the engine bay while vehicle is in slow moving traffic or at stop with engine and ac on. I know everyone is gonna say something about the condensor fan but would it be the fan given above circumstances.

The fan blows air only at certain speeds Low airflow from the vents Lack of airflow when the AC is on. Theres also a hummingbuzzing sound where it sounds like its struggling somewhere in the car. Some of the causes of this problem are a short circuit a bad switch or fluid leaks.

Normally car AC systems are built so that the higher the engine speed RPM the faster the AC compressor turns. If AC operation returns to normal youre not dumping enough heat off of the condenser. If I idle the airflow decreases and starts blowing warmnot cold.

Your air conditioner may be working but not at its intended power efficiency. Air Conditioner only works on the drivers side. To maintain airflow when the car is in stop and go traffic or is completely stopped condenser fans will come on automatically.

As soon as you Radio and AC. The driver side vents blow cold air but the passenger side blows hot air.

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