Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [ac]

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

2
votes
0answers
15 views

No Cooling and Very Rapid Ticking Noice from AC Compressor

European 98 Mazda 626 2L GF The AC stopped working recently ( no cooling at all, measured at central vent ). When I turn on the AC the clutch engages and seems to stay engaged. The clutch does NOT ...
0
votes
0answers
14 views

New air-cond for Mazda MX5 Mark 1

I have a 1991 MAzda Miata/MX 5. The air-cond packed in a decide or more ago. Even if I could have it repaired, the CFC or whatever is almost certainly illegal nowadays (bought in Florida, currently in ...
0
votes
0answers
17 views

Drove exactly a mile on water in the reservoir. Overheating after coolant added. What could be the problem?

So I drove to the gas station to put air in my tire when I realized I forgot to clamp down a coolant hose going to radiator after working on swapping the alternator. My hood was steaming and there was ...
2
votes
2answers
136 views

What happens to car A/C when outside temperature is very low (about 55 degrees fahrenheit)?

I bought a used car and its the first winter since I had this car. A/C in summer was working just fine. But today I saw the outside temperature was about 55 degrees and I turned the A/C to the blue ...
0
votes
0answers
13 views

Hearing Rattling Noise When AC Engages

I have a 2008 Honda Civic Si and whenever I engage the Ac and have the car in neutral, I can hear a rattling noise, which seems to be coming from the gearbox. However, If I should depress the clutch ...
0
votes
0answers
13 views

AC sound when temperatures adjust

My hyundai i20 AC features like, cooling, heating, fan, blend door, etc etc are perfectly working regardless of whether the temperature is at low, normal, high and fan speed is low, high etc etc. ...
0
votes
1answer
29 views

AC compressor noise only when car is hot

I recently noticed that my car is making a consistent noise when AC is engaged. Furthermore I found that this noise occurs only when car is hot. Belt doesn't seem to be slipping. Car is 16 Subaru WRX....
1
vote
0answers
49 views

Water sloshing sound from bottom of car

The past few weeks, I have been hearing a water sloshing sound from inside the car. It sounds almost like there is a large-ish tub below the passenger seat filled halfway with water, which then ...
1
vote
1answer
11 views

Air Conditioner turns on when turning on the front defrost 1999 Olds Aurora

I have a 1999 Olds Aurora and when I turn the front defrost the Air Conditioner turns on and I can't turn it off. Is that what I want to happen? It doesn't do that on my other 2 cars. How can I fix ...
1
vote
0answers
20 views

2010 toyota tacoma AC not working

Blower motor is brand new, tried a replacement just in case and it still did not work. I've got a new diffuser on the wire harness. Lights come on for the ac when I turn the knob on the dash, but the ...
12
votes
2answers
2k views

Is it okay or useful to run heat and AC at the same time?

Most cars that I've seen in my life have a heat slider or dial, which goes from coldest to hottest, and also a button or switch that is labelled "AC". When the heat dial is set to cold, turning on the ...
0
votes
1answer
41 views

Loss of engine power when AC compressor engages

I have a 2008 Honda Civic Si and it runs great. But, whenever I'm driving at about 6mph - 20mph with the AC on, I can feel a drag in the engine (power loss) whenever the AC compressor engages. The ...
1
vote
0answers
21 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 ...
1
vote
1answer
30 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 ...
3
votes
2answers
58 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 ...
1
vote
0answers
26 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 ...
0
votes
2answers
46 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 ...
1
vote
1answer
53 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 ...
1
vote
1answer
26 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 ...
2
votes
1answer
59 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 ...
1
vote
1answer
48 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 ...
7
votes
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 ...
0
votes
1answer
26 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?
0
votes
1answer
147 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 ...
2
votes
2answers
77 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, ...
1
vote
0answers
24 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 ...
8
votes
1answer
366 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 ...
1
vote
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 ...
1
vote
0answers
34 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 ...
1
vote
2answers
49 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?
2
votes
1answer
28 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 ...
1
vote
0answers
153 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 ...
0
votes
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 ...
0
votes
0answers
20 views

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?
1
vote
0answers
61 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 ...
2
votes
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
1
vote
0answers
15 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-...
1
vote
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?
1
vote
0answers
23 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 ...
2
votes
2answers
166 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 ...
2
votes
1answer
58 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 ...
2
votes
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 ...
1
vote
2answers
69 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 ...
2
votes
0answers
47 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 ...
0
votes
1answer
127 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 ...
1
vote
0answers
65 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....
3
votes
1answer
73 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 ...
1
vote
1answer
29 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 ...
1
vote
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 ...
2
votes
1answer
71 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 ...