ac only works when driving slow

Your car AC relies heavily on the motor fans to circulate the flow of freon when the car is at rest. When driving at slower speeds or idling the AC.

Air Conditioner Only Works When Driving What Could Be Wrong

As soon as you slow down the ac goes out.

. It may come back but only when you - Answered by a verified. Your AC Fancondenser is might be broken ie Problem with the spindle sometimes when the spindle is broken on travelling at high speeds the fan is pushed. 99 for a fan clutch.

If the car is moving the air conditioning system will not require a secondary. 36 to use the AC. If that is so and if you have only one electric fan both for condenser and radiator of engine in your car then you can just full rev the engine for 510 min while keeping the car stationary and check if the fan sta.

Answer 1 of 4. It probably isnt he compressor. Reasons why the AC can stop intermittently.

It could be but there is a much more likely culprit. Feel like I was robbed to some degree. When you stop or slow down the airflow depends more on the fan which is either electric or mechanical.

Odds are good that the fan switch may be at fault but a more likely reason is that a blower motor resistor that controls the voltage going to the blower has packed it in resulting in. If thats not the issue then your coils on your condenser is stopped up not allowing it to cool the air. If your HVAC works the same as an 04 try this.

Look for the ac compressorand locate the large ac line coming off the ac compressorFollow it until you come to the ac charge portthis is where you charge it up with a charge hose that you. Get a thermometer that goes in your vent to see if its hot as you think it is or not from Amazon HERE. Up to 8 cash back To maintain airflow when the car is in stop and go traffic or is completely stopped condenser fans will come on automatically.

When your going down the road airflow is no problem. After a minute or so the low side will stabilize at the. So I just bought this new to me 03 Ram 2500HD 57L Hemi.

AC Blows Cold Air Only When Driving 30 MPH or Faster. Most likely it would be due to AC condenser fan malfunctioning. You may have a fan malfunctioning.

-key to ON position engine off. There are several possible causes of a vehicles air conditioning system to stop working after being on for only a few minutes. The AC on my 2008 20 L turbo now only works when I am driving at speeds of at least 30 MPH.

As soon as you get moving it gets cold again. If the fans dont come on. My one issue is the AC doesnt.

Full larimie heated leather infinity sound system. Tuesday July 1st 2014 AT 742 AM. Up to 25 cash back Ac on auto only works when you drive fast.

Super nice super clean. 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. For the AC to work there has to be a change of state from gas to a liquid in the condenser in.

If your car AC blows cold air when driving at highway speeds but turns warm at stop lights or when driving at slow speeds you may have a bad radiator fan or radiator fan relay. The AC blows hard all the time but when you are sitting at idle at a redlight or something it goes from cold to lukewarm. Air condition systems only need around 6 lb of pressure to operate.

The quick way to check the POA setting is to run the AC at idle unplug the blower fan and look at the low side pressure. So 17500 later the shop says it was the fan clutch. Up to 8 cash back The high pressure hose is designed to increase and decrease AC pressure during different driving conditions since the AC drive belt will increase in.

If this valve fails to go the proper position for refrigerant line temperature it doesnt convert the refrigerant into a gas but instead it remains a liquid and the cooling effect stops. The ac needs air constantly flowing across the condenser-this is the thing in front of your radiator that looks like a radiator. Sounds like either youre low on freon or your condenser fans are not kicking on.

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