Air Conditioner Only Cools When Accelerating

Ive tried putting it in neutral and revving the engine while waiting to move again but this does not seem to make a difference. We use cookies to give you the best possible experience on our website.

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Air conditioner only cools when accelerating. Lastly the reason why your car air-conditioning isnt blowing cold air is because your engine is overheating. Now that summer is in full. I have had this problem with my 99 Honda Civic for several years and I cant take it anymore.

Answer 1 of 15. The cooling fan in the condenser is the first thing that you should look into while finding out the reason for car air conditioner not blowing cold air when idling. Does anyone know why the AC doesnt work when the car is.

After repairs this is happening. I have plenty of coolant in the system so its not that. I also replaced the expansion valve.

Another reason why the air conditioner works only when your car is moving may be low freon levels. There are several reasons why a cars AC Air Conditioning may not cool when at a stop and blows cool only when moving. I threw some AC Pro in the system.

If your air conditioning system freon levels are below what is needed it will not cool properly. You may need to repeat this process once or twice 1 or 2 days apart to ensure you get all the air out. This could mean that there is some slipping on the belt and when you accelerate it activates something called a tensioner which helps keep the belt taut thus making the car blow cold air.

AC cools ok but when I accelerate air stops coming out of the vents. AC only cools when driving or if you rev the engine while stopped. A 2004 expedition.

As engine levels off air starts to come out of the vents again. Once you run for 5-7 minutes shut off vehicle and continue to add coolant to system as it cools the coolant will be sucked into the engine coolant system for several minutes. When driving at slower speeds or idling the AC blows warm air.

At first I thought the air conditioning was working fine although it was slow to cool down at first due to the heat soak into the dashboard but lately the car is exhibiting worse ac performance and is intermittently blowing warm air when set to max cold lo-lo with. The AC has always been cold. Answer 1 of 9.

Jul 05 2021 Hello. Had ac recharged - Chevrolet 2006 Equinox question. Most likely its low on gas.

This didnt change anything however. The AC on my 2008 20 L turbo now only works when I am driving at speeds of at least 30 MPH. Also windshield frost up just above the defrost vents.

The ac works only when the car is accelerating. Air Conditioner only funtions at idle. The fan is still blowing when I am at a stoplight or in a drive-thru it just blows hot air.

Normally I would think the AC needs freon but is it. AC Blows Cold Air Only When Driving 30 MPH or Faster. During idling however the AC starts blowing warm air and it gets warmer and warmer the longer the car is not in motion.

It sounds like the air compressor or condenser are on the same belt as the main pulley. Theres too many rambling answers on here. We just spent 2k to repair the AC after it completely went out.

- Answered by a verified Ford Mechanic. I have checked all. None of this was happening before a front end accident.

If i put the car in neutral idle it or even park the car the temp immediately starts cooling down. But it only starts to overheat when the gas is depressed. Ill second a lot of the prior answers and add a bit.

When sitting in idle traffic only blows warm air. Lets says your system is at 30 psi static pressure right now with out engin. As a result it only cools when your car is moving as the car is then capable of pumping the freon with ease.

When the accelerator is pressed while in P Park or D Drive the compressor continues to run but the cabin air vents blow warm air. You may have experienced this in other. It didnt work but the very next day my car started to overheat.

Vacuum leaks can drive you nuts. Then as the interior cools down and the evaporator gets cold the. If your air conditioning mechanics is not up to par then have a certified car air-conditioning system mechanic check it for you.

The only items I havent checked is the controller and compressor. It cools the car again when I drive. During hard acceleration the AC door system loses vacuum AC Air stops blowing when accel.

Air conditioner cuts out when accelerating or under press. Also question is why does my AC only get cold when I accelerating. These are some of the major causes of why AC only works when accelerating-.

If its in the doors up under the dash youll usually notice a change in the airflow inside the car. Im unsure what it could be. If you know how to gauge and refill Freon do it.

You should see some air bubbles escaping from the coolant tank. I have a 1997 Nissan Altima. Usually when I accelerate it gets cold again but not always immediately.

If I am driving on the highway and accelerating there is no overheating and the air conditioner works well blowing nice cold air. Could be easy to get to in the engine compartment or hidden way up in the dash. The system has been charged.

While I drive and the engine revs up from 1700-2200 RPM the AC works well. The air conditioner blows cold but after a few minutes the compressor cycles off and will not come back on. Pressure with in the system is good and particle filter for clogging.

The system is sealed with r134a gas at a guess which has a pressure switch for highlow pressure safety. Now I am finding that the air coming from the AC has sometimes started to blow less than cold at times almost as if the air is blowing from the vents with the AC turned off but typically when I am at idle. On the off chance that your AC possibly works when you are driving your motor is likely overheating.

Lamentably not every person who claims their vehicle knows their motor. When Im not in motion and my car is just idling like in my driveway my car overheats and the air conditioner blows only hot air. Typically this occurs due to a bad vacuum check valve under the hood.

Its important to know that many times the cooling fan is shared by the radiator and condenser other times there are TWO separate ones. Click to see full answer. If the fan is damaged or cannot run with its full force it cannot cool down the heat coming from the Freon refrigerant through the.

The pressures stay the same at idle and when accelerating. When the AC is on and the engine is idling the cabin air vents blows ice cold air. Ac only cools when accelerator is pressed.

I brought car to two VW dealerships to have their service department diagnose the problem. It worked fine for about a year but now it doesnt work when sitting at a stoplight or going slow it only kicks in cold when we are accelerating or driving on the highway. The most common reason is the cooling fan for the condenser is not working.

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