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Questions tagged [ac]

Questions about Air conditioning systems - other Heating and ventilation questions should use 'hvac'

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6 views

2008 Honda CRV can't change ventilation mode

Heater works great and A/C works great when I turn the hot or cold knob. Once I change blow mode to window defrost it stays there for several days even if I change the settings to other blow mode ...
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1answer
16 views

Vibration When Using Accessories

My car (2002 Honda Civic Type R) has some vibrations when it is on idle. All the vibrations disappear as soon as I get on first gear and take off. There are different types of vibrations that I will ...
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2answers
51 views

Can I replace my AC Compressor myself? 2008 Vauxhall Astra 1.9

On my 2008 Vauxhall Astra 1.9 CDTI my AC Compressor has gone I was wondering how easy it is to replace myself? I'd get the system drained at a garage first. I've included the service instructions ...
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0answers
20 views

AC Clutch Not Engaging After Timing Belt Replacement

Vehicle: 2007 Chrysler PT Cruiser Had my timing belt replaced saturday (Yesterday) as maintenance for the car; everything seemed perfect when I drove it afterwards but the temps outside were chilly ...
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2answers
44 views

Why A/C direction knobs don't have a face/windshield setting

In all cars I've ever ridden since I was a child, the air conditioning controls include a knob or slider to set where the air will blow, and it always has the following five settings: Windshield Feet ...
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1answer
15 views

2007 Subaru Outback - Split AC/Heat passenger side not responsive

As stated I have a 2007 Subaru Outback, with the LL Bean package; no LED screen yet on this one. The AC/Heat has split controls, one for the passenger side and one for the driver. I've always kept ...
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1answer
23 views

What to do about side window condensation

I live near the ocean, so the air is very humid. In the summertime, running the air conditioner causes condensation to form on the outside of all my windows. This isn't a problem for the front and ...
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1answer
31 views

2014 Toyota Corolla AC Issues

Recently got in my car a few days ago and my ac was not blowing air. Previously in the morning the vehicle was used and everything was normal. A few hours later, and for the next few days the ac ...
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1answer
46 views

replacing A/C condenser – without having to drain R134a refrigerant?

The vehicle (Chevy Cobalt 2009) ran over a deer and bent inward the radiator and A/C condenser. I'm going to replace both, however I'm wondering if it's possible to replace the condenser without ...
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4answers
2k views

Would it be harder to install a new AC system if the old one is ripped out already for a long time?

I have a Hyundai Excel 96 sedan, the AC is not working any more. I will eventually have a new AC system installed, but not now because it does cost some bucks. I'm planning to have it removed since ...
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1answer
24 views

AC Compressor issues

My AC Compressor is bad. I work out of town and I can’t afford to have it fixed right now. Since winter is upon us do I need to have it fixed right away?
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1answer
35 views

Adding A/C Compressor oil

I had a new ac compressor put on my 04 Mitsu Endeavor. At that time I didn't know oil had to be put in the compressor but had them put it on anyway. It's not been used since but I want to start ...
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2answers
73 views

How is the liquid refrigerant distributed throughout the system before start

When an air conditioning system is at rest (eg before starting) how is the liquid refrigerant distributed throughout the system? I would think that the expansion valve would remain slightly open, ...
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0answers
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Car Ac working intermittently after i Jumped started another car

I have nissan cefiro [Maxima] a32 2001, what happen to my car is quiet unusual. Yesterday my friend 's car needed a jump start which I helped him by doing it from my car. After that my car ac stopped ...
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0answers
11 views

Rear defogging not working

My car i20 rear defogger does not light up and it doesn't work too. However, the front fogging and other AC features are normal 💯 percent working ie...ac blower, hot or cold air blowing, even front ...
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0answers
23 views

A/C Repair Honda Pilot

I have a Honda Pilot and the AC wasn’t working. Brought it in and they recharged it. A few weeks later, it wasn’t working again so they replaced the condenser. Two weeks later, it’s not working ...
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1answer
361 views

Exactly how much refrigerant is in there?

A concern that comes up regularly when troubleshooting A/C problems is whether an A/C system has too little refrigerant (hello leaks) or too much of it (hello overcharging). The traditional way to do ...
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0answers
14 views

Low End AC is 150+ PSI

I drive a 2012 MazdaSpeed 3. A couple weeks ago I noticed that my AC was blowing hot air. I went to recharge the AC as I figured I may have had a leak and lost coolant but turned out that my low end ...
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0answers
31 views

2006 Chevy Cobalt AC pulley seized?

In my 2006 Chevy Cobalt 2.2liter Ecotech, the serpentine belt broke. I went out and bought a new one and didn't check the pulleys prior to putting the new one on. I haven't changed the belt before and ...
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2answers
38 views

Is PAG 46 compressor oil compatible with a 2006 Touareg W12?

I have a bottle of PAG 46 oil. Is it compatible with the compressor on a 2006 VW W12 Touareg?
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1answer
26 views

How to remove an odor left by mice leaving dry dog food in my vent system. 2008 Honda Civic

I had a bag of dry dog food in the garage and a mouse or rat took an awful lot of it into the vent system, to store it I suppose. The smell is bad. I have removed/replaced the cabin filter twice. I ...
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0answers
81 views

2012 Chevy Equinox A/C Blows Hot and Ambiant Temperature reading Wrong

I have a 2012 Chevy Equinix. 120k Miles. Bought it new. From early on sometimes when we would turn the A/C on it would not blow cold. But if we would take the temperature control knob and turn it from ...
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1answer
17 views

AC compressor stopped working, electrical/program issue

My Ac was working fine untill 2 days ago, I was accelrating normally and then generic error messege appeared on the dash and the AC stopped! (fans and compressor). I tested the fans, they are woking ...
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Hvac 2003 Ford Expedition 5.4

Where is the front HVAC condenser drain? Front and rear fan wasn’t blowing hard and wasn’t blowing at correct speed. Both had water on plastic housing? What would have caused this?
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0answers
59 views

Diagnosing AC performance after repair

Background: Vehicle is 92 Civic with R-12 AC system. Compressor was replaced 2 years ago due to leak diagnosed there by AC technician (not sure if that was actually the problem). All but about 100g of ...
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2answers
67 views

The AC will not get cold unless driving

The fan in front of my radiator is not turning on. my cars AC does not get cold unless im driving over 30 mph. any solutions? 2007 Jaguar X-Type
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A/c compressor 2004 Corolla

A/c compressor on my '04 Corolla stops, runs, stops, etc. Long story short. I'm a teacher and just got out of debt with my last paycheck for the school year. The summer job I had was barely was ...
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0answers
14 views

AC stops working in 2002 Pontiac sunfire SE 2002 at high RPM

I have a 2002 Pontiac sunfire SE. The ac works when I drain the Freon and refil it. It works better on high way. But there’s this weird thing that happened twice. I reved it to a high RPM (like 4000-...
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0answers
10 views

95 Aerostar Dash lights

thank you all for your efforts to help each other. My '95 Aerostar's dash lights, A/C and radio turn off when I brake. Anyone have an idea what the issue is?
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0answers
20 views

2014 VW Passat AC vents randomly moves from front to floor vents

While driving and using the AC on the Main front vent setting, it will randomly blow down on my feet. Sometimes it's a little of both and sometimes it will go back on its own. The get it working ...
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2answers
70 views

Burning Smell from a/c vents and heat gauge drop at highway speeds

I have a 2003 Mitsubishi Galant with a 4g63 SOHC 2.0l engine. I have noticed that when at highway speeds the heat gauge drops almost close to C indicator and if I accelerate hard I get a burning smell ...
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1answer
54 views

What are the long term consequences of not replacing the worn bearing in my A/C compressor?

Recently my car has developed some extra noise under the hood. My mechanic informed me that the bearing from the A/C compressor is bent (likely from a collision one year ago), causing it to wear, and ...
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0answers
31 views

Missed a connector in my AC system?

I just changed the heater core in my 1999 Subaru Legacy Outback. I had to take the dash out, and disconnect many connectors. After putting it all back together, my heat now works (yay!), but my AC ...
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2answers
65 views

AC cycle off too long when driving

My AC system has been problematic recently on 2014 Ford with barely 31000 miles. Its uses Visteon 16 compressor. When driving, after some minutes, it will shut off for long enough until the vent ...
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0answers
42 views

Clunk sounds in rear when A/C engaged - 2006 Subaru Impreza

First off, I don't have much experience with cars. I've googled the issue and have come up empty. I've got a 2006 Subaru Impreza Wagon with 170,000 miles. In the last month, a clunk has been ...
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1answer
96 views

Waiting to refill the aircon gas after replacing the aircon pump

Is it true that you must wait for like 2 days and drive 70 miles roughly after replacing the air con pump since the condenser oil has to settle down? Otherwise the gas will leak out since the oil ...
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0answers
56 views

Ac blowing hot air and only works when temp is below 80

I have 2016 VW Jetta S. My Ac blows warm air and only blows cold when the car temp says 80 or below. If it’s above that number it won’t get cold. I’ve changed the compressor, condenser, and evaporator....
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1answer
68 views

Need help with diagnosing weak AC on ford explorer

2007 Explorer has weak AC. When driving at speed, the AC can produce reasonably cool air. When stopped at traffic lights or such, the air warms to ambient temps rather quickly. I hooked up the ...
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1answer
26 views

AC service valve/hose sizes

Every time I find myself needing this information, searches turn up wrong or incomplete information. What are the standard sizes for automotive air conditioning service valve and hose fittings for ...
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0answers
21 views

A/C issues, blows cold for couple days then just quits.

08 Trailblazer v8 A/C stopped blowing cold air. Had to pull terminal off to clean fuel intake. Put terminal back on and A/C was working again. 2days later, stopped again. Pulled terminal, works ...
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1answer
57 views

2008 Vauxhall Astra AC not blowing cold but there is gas in the system

I have a 2008 Vauxhall Astra 1.9 CDTI 8V (Z19DT engine) Elite (it has Climate Control) Today the AC suddenly stopped blowing cold air, it worked fine yesterday so I took my OPCOM unit to read the ...
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1answer
103 views

'07 Escalade - AC issues

2007 Escalade AWD. Yesterday, I noticed that the air conditioning keeps turning on and off. To clarify: the control unit does not indicate that it's turning off. I still have the fancy snowflake ...
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1answer
143 views

AC Compressor runs for 45 mins and shuts off

This is on a 1997 Chevy C2500 with a 5.7L. It has a new AC compressor, AC condenser, AC Manifold hoses (suction and discharge). After an evacuate and recharge, the AC blows ice cold for about 45 mins (...
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2answers
646 views

windshield condensation when running air conditioning

My air conditioning is sufficiently cold but occasionally I've noticed a little thin film of condensation on the lower surface of the windshield. The area is across most of the width of the windshield ...
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1answer
244 views

2015 nissan sentra- a/c only blows cold at highway speeds

I have a 2015 nissan sentra. When i first got it in 2015 it had one of the best ac systems i had ever had the pleasure of using, like too cold in 105 degree heat on the minimum setting. Then after ...
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1answer
47 views

AC compressor replacement

I replaced my AC compressor and wanted to know if I can run it without haveing the AC on.........I replaced the AC compressor myself and need to take it to get vacuumed. I wanna know if I can drive it,...
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2answers
61 views

Diagnosing AC System

I recently purchased a used 2006 Honda Civic Si. The AC system is not working as the system does not blow cold air. The clutch on the compressor is not engaging, however the condenser fan is running ...
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2answers
3k views

How to add compressor oil to an AC system that's already charged?

I recently fixed a leak in my car's AC system. Before I charged the system with fresh refrigerant after a complete evacuation, I almost forgot to add some PAG oil to the system. Which leads me to my ...
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1answer
64 views

Is it possible for a car's AC system not to have a dryer in the circuit?

I recently fixed a leak in my car's AC system and, prior to evacuating it in order to recharge it with fresh refrigerant, I looked to replace the dryer as recommended. I could not locate a dryer in my ...
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0answers
31 views

Car AC not equal on driver passenger side

I've 2010 Hyundai SantaFe with somewhat weak AC. What I noticed is car AC is not equally powerful on passenger and driver side. Passenger side seems to be working much better and it is not dual ...