ac only works when driving fast

The ac works only when the car is accelerating. There is a rattling noise coming from under the hood it sounds like metal shaking around.

Ac Only Works When Driving What S Causing It

To maintain airflow when the car is in stop and go traffic or is completely stopped condenser fans will come on automatically.

. What could be the problem. 2005 Dodge Ram 1500 SLT Big Horn 58L V8 Hemi my air conditioning only works when Im driving forward and does not work at all any more when Im sitting still at an idle. The fans have two modes a slow and fast one.

For the AC to work there has to be a change of state from gas to a liquid in the condenser in front of the radiator To get this change of state there has to be air flow across the condenser. But there is a much more likely culprit. Now unless I have it only on a low setting and driving at 45mph is the only time it BARLEY blows out cold air.

Only one fan on the car. If i am revving the engine from 1000 to 2000 and back or accelerating the heater starts working. Car Car AC only cold at high speeds but not low on coolant.

And noticed that the second fan on the radiator never came on although i. Car air conditioner not blowing cold air when idling is a pretty common issue related to your vehicles AC unit. I am no expert in more recent vehicles but if the ac works only at higher driving speeds it could be because the ac condenser that is located in front of the vehicle near the radiator gets more air flow that helps it eliminate better the heat heat is extracted from the refrigerant when its compressed to be cooled down.

It looks normal nothing broken or weird about it. Hi Guys - My air conditioner is giving me problems. Any ideas what it could be.

AC Blows Cold Air Only When Driving 30 MPH or Faster. When driving heating works-ish. As soon as you get moving it gets cold again.

AC Blows Cold Air Only When Driving 30 MPH or Faster. My air conditioning in my 2012 Kia Optima EX GDI non turbo runs fine while driving at higher speeds but at a stop light stuck in traffic at low speeds it only blows warm or hot air. I brought it in to get serviced and I was told that my wires were melted and thats why it stopped working so I had them replaced and after the ac was Back to normal for 2 weeks.

Ive tried putting it in neutral and revving the engine while waiting to move again but this does not seem to make a difference. I checked the water pump. System to provide cool air out the vents it must be abl.

But if the car is parked in an unshaded area under the hot sun the AC keeps on blowing hot air. The AC on my 2008 20 L turbo now only works when I am driving at speeds of at least 30 MPH. 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.

My AC works only when I am driving at fast speeds. As soon as you slow down the ac goes out. The ac works only when the car is accelerating.

If higher vehicle speed improves AC. There are many reasons why you might find the AC only works when driving but doesnt blow cold air during idle. Please what do I do.

Rael July 6 2008 826pm 1. Tried to accelerate and it sputtered and died. If the car is standing still on the parking lot heater blows cold air.

The fast mode is when both fans are running and you can actially hear them running from outside of the car. For some reason when I drive around town taking short trips my AC refuses to cool the car down. Mostly when the car is moving.

I stopped at a stop. Performance open the hood at idle and verify that the radiator fan is running and if it is will it firmly pull a sheet of paper to the front of the condenser. The AC has worked like a champ for the past year since I.

The fan is still blowing when I am at a stoplight or in a drive-thru it just blows hot air. Hi First check in front of the radiator to make sure dirt or. Up to 20 cash back Ac on auto only works when you drive fast.

The AC blows cold on weather 80 or below but anything above that temp only hot Air. This part is responsible for transferring the heat coming from the system and dispelling it into the atmosphere. The car is heating only when i am accelerating.

Up to 8 cash back 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. It may come back but only when you -. Answer 1 of 17.

I popped the hood and noticed that when the AC compressor kicks on that it almost stalls the engine. It needs to reduce the temperature so the refrigerant can condense properly. If the AC in a car only works when driving it could be due to a problem with the condenser fan.

Read on to learn the most common reasons as well as how to fix the problem in each case. Up to 8 cash back My ac hasnt worked for over a year Now. When you are moving the air is flowing through the condenser coils which is what cools the air.

In order for ANY AC. Anytime the AC is on the fans should be running. Rael July 6 2008 826pm 1.

This is a new problem. By the way the POA adjustment if pretty easy and makes a big difference in the AC temp.

Ac Only Works When Driving What S Causing It

Air Conditioner Only Works When Driving What Could Be Wrong

When You Live In A Tropical Country Driving With Your Air Condition Unit Running Is Must That Is Unless Y Car Air Conditioning Air Conditioning Unit The Unit