ac only works when driving fast

The AC works best when the roadspeed is above about 25 and engine speed is above 1500 rpm. Get a thermometer that goes in your vent to see if its hot as you think it is or not from Amazon HERE.

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The fans have two modes a slow and fast one.

. As soon as you slow down the ac goes out. If the car is standing still on the parking lot heater blows cold air. Ive tried putting it in neutral and revving the engine while waiting to move again but this does not seem to make a difference.

If i hit the streets with a temp of 80outside the ac will startblowing warm air and after. You may have experienced this in other cars when you hear a click or feel a lag or bog down of the engine when the ac cuts on high and blows fresh cold air. Hi First check in front of the radiator to make sure dirt or.

So there I was naked with nothing but a bag of ice and a 9-iron. Videos you watch may be added to the TVs watch history and influence TV recommendations. To maintain good airflow when the car is in stop and go traffic or is completely stopped condenser fans will come on automatically.

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. Up to 8 cash back When your car is moving say at 45 MPH there is lots of air flow over the condenser the condenser is the heat exchanger in front of the radiator and that airflow is essential to proper ac system operation. What could be the problem.

The AC has worked like a champ for the past year since I. No doubt I am not disputing that. Radio come on Radio and AC control module on 2007 s80 Volvo.

It looks normal nothing broken or weird about it. When driving heating works-ish. Asked by morenu86 in Modesto CA on August 01 2014.

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. 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. Radio come on but cant turn volume up or.

But there is a much more likely culprit. The moment I stop at light or stop sign it blows warm. 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.

Had all AC System replaced and by that i mean sensors pumpcondenser etc. Anytime the AC is on the fans should be running. AC Blows Cold Air Only When Driving 30 MPH or Faster.

The car is heating only when i am accelerating. As soon as you Radio and AC control module on 2007 s80 Volvo. My AC works only when I am driving at fast speeds.

AC only blows cold when driving. 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. To avoid this cancel and sign in to YouTube on your computer.

I popped the hood and noticed that when the AC compressor kicks on that it almost stalls the engine. Hi Guys - My air conditioner is giving me problems. Up to 20 cash back Ac on auto only works when you drive fast.

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. You can do the refill yourself if you know the procedure. System has been check by professional and has correct amount of freon with no leaks.

When youre sitting in traffic the heat builds up under the hood and its harder to move heat from cabin to engine compartment 313 views View upvotes Quora User Answered 2 years ago Author has 15K answers and 11M answer views. If i am revving the engine from 1000 to 2000 and back or accelerating the heater starts working. It only works if temp outside is not hot or when i drive it on the freeway.

This is a new problem. 09-07-2011 1055 AM 5. Yes the fan should come on when car is stopped.

In order for ANY AC. Ill tell you the rest later. And yet AC wont work properly.

2002 Honda CR-V. That is causing the AC to not work so well at a stop. System to provide cool air out the vents it must be abl.

Now that summer is in full-swing I am at the end of my rope. It may come back but only when you ac on auto only works when you drive fast. Rael July 6 2008 826pm 1.

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. 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.

The fan is still blowing when I am at a stoplight or in a drive-thru it just blows hot air. The AC on my 2008 20 L turbo now only works when I am driving at speeds of at least 30 MPH. 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.

Please what do I do. As soon as you get moving it gets cold again. And noticed that the second fan on the radiator never came on although i.

When its level goes lower than the acceptable level you will face the issue of car air conditioner not blowing cold air when idling. Car Car AC only cold at high speeds but not low on coolant. If higher vehicle speed improves AC.

The ac works only when the car is accelerating. I checked the water pump. Answer 1 of 17.

Only one fan on the car.

Ac Only Works When Driving What S Causing It