ac only works when driving reddit

The high pressure hose is designed to increase and decrease AC pressure. 7 people found this helpful.

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. 95 toyota tercel AC works great on highway at about 55mhp or higher speeds. The high side pressure was 175 psi and low side was 26 psi. As soon as you slow down the ac goes out.

So if youve got auto temp control ignore this post. My own car The ac would only work at no more then idle My manifold gauges are busted and can only read the low side but I knew what was wrong The tx valve orifice tube was clogged to the shithouse. In my case the compressor stops cycling but the fan stays on.

At idle I was getting a vent temp of 419 degrees. If the compressor gets weak or worn out by constant usage then there is a noticeable lack of energy in. Ive tried putting it in neutral and revving the engine while waiting to move again but this does not seem to make a difference.

Im probably taking to somewhere for diagnosis and repair soon because AC repair is out of my league. The cold air returns shortly and the cycle repeats itself for as long as you are driving. Issues start when i drive within city limits and especially when i hit a traffic light or have to wait in drive thru for about 5min.

Sorry I drive a Falcon. That sounds like it could be the radiator cooling fan not working right. Around cluch of compressor when it does it again tap it with hammer or somthing if it engages it needs wd40.

When driving at slower speeds or idling the AC blows warm air. The 2016 Hyundai Tucson has 30 problems reported for ac intermittently blows warm air. Gen II Dakota 97-04 10 months ago.

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. I have had this problem with my 99 Honda Civic for several years and I cant take it anymore. AC is cold only when the engine is revving above certain rpm.

Top 10 Reasons that your Car AC isnt Cooling Enough. Took this down to my local NAPA Auto store and. You may have experienced this in other.

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. Ambient temp was about 70 degrees. Most ac work on a clutch system it may have a week clutch not engaging or has rust dirtetc.

The AC on my 2008 20 L turbo now only works when I am driving at speeds of at least 30 MPH. So you went for a road trip or a long drive and after 30 minutes of driving realized that your AC suddenly stopped working or switched to blowing warm air. The AC has worked like a champ for the past year since I.

This only happens with manual heater controls. When youre driving the radiator fan doesnt need to work to keep it cool but at stops it does so it could be not working the way it. 31 years of experience.

Then I dont get any cool air. Replaced the AC compressor. Up to 8 cash back AC is not working Inspection.

2013 Chevy Sonic Overheating and AC only works when accelerating. Now that summer is. Up to 20 cash back Ac on auto only works when you drive fast.

Normally car AC systems are built so that the higher the engine speed RPM the faster the AC compressor turns. It may come back but only when you - Answered by a verified Volvo Mechanic. 4 years ago edited 4 years ago.

After the car sits for a while it might work again might not. Page 1 of 2. Titan1000 May 1 2009 309pm 1.

It looks like I will need to replace the compressor. I replaced the relay with no change. AC works on highway only.

2 cause of AC blows warm at idle. Average repair cost is 580 at 11050 miles. I brought car to two VW dealerships to have their service department diagnose the problem.

So more power applied to the engine means more power applied to the compressor which. Your AC system is low on refrigerant. AC might work for 5 or 10 minutes at most and its usually ice cold for that time.

Since the AC compressor is driven by the engine it doesnt pump as much refrigerant when youre at a stop or driving slowly. For some reason when I drive around town taking short trips my AC refuses to cool the car down. It sounds like the air compressor or condenser are on the same belt as the main pulley.

Your air conditioner may be working but not at its intended power efficiency. So my Sonic is showing the overheating alarm on the dashboard if ive been out driving for a while and just recently 2 days I notice that when idle my AC isnt blowing cold air but once I get up to speed the AC works just fine. 1998 Honda CRV.

I have a new 2016 Volvo xc70 only 3100 miles. AC Blows Cold Air Only When Driving 30 MPH or Faster. 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.

Heater blows cool air when stopped and warm air while driving 2008 Kia Spectra Lately in the past 1-2 weeks my car has been warming up just fine but appears to blow cool air when I was stopped at a stoplight. After letting it idle for a little while longer the temp dropped further to 408 degrees and the high side pressure was 140 and low side was 23 psi. The ac works only when the car is accelerating.

This is a new problem. The only issue we have is that while we are driving it just stops blowing any air at all. Hi Guys - My air conditioner is giving me problems.

The compressor needs a lot of power and energy to work fully functioning. The fan is still blowing when I am at a stoplight or in a drive-thru it just blows hot air. One of the most common causes of the symptom youre describing is when you have a bad or failing AC high pressure hose.

Today when I was driving home from work the car begun to run rough the check engine light came on. If the system is low on refrigerant it will show up as AC blows warm at idle and blows colder when the engine is running at higher RPMs. Well if youre driving a 1995-98 Ford Explorer or Mercury Mountaineer the fix may be as simple as a bum blend door in the heater box.

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