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

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A/C Reciever Drier for 1962 Skylark

I need to replace the A/C receiver drier (a.k.a. accumulator) in my 1962 Buick Skylark (V8 convertible), however the aftermarket ones I've been finding online (e.g. ...
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1answer
43 views

Do I need to add oil after A/C evacuation without replacing any parts?

My 1999 Suburban's A/C started to lose its cooling capacity last fall. In late fall it stopped cooling completely (there was a mechanic involved with other parts of the vehicle at the time). This ...
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1answer
51 views

My a/c goes in and out at random times. Help!

I have a Pontiac Grand Prix GT 1998. She runs great except my A/C is now acting up. I first noticed it a few weeks ago. I was driving and it was almost like someone had turned the air down so it ...
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24 views

Remote Car Climate Controller

I am investigating the possibility of monitoring and controlling the car cabin temperature using GPRS. I will be using Arduino Uno and GSM shield to communicate with an Android App. The arduino works ...
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1answer
22 views

Anyone knows of a tutorial on how to remove/replace the radio and AC unit in a 2001 Subaru Legacy?

I have new radio and AC units for my 2001 Subaru Legacy L Station Wagon but I do not know how to install them. It seems more complicated than I expected. Does anyone knows of a good tutorial or manual ...
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40 views

Air conditioning not on, but still giving out cold air when car in motion, and makes hissing sounds

Have a 2000 Honda Accord 4 cylinder. Problem started last week. Turned a/c to cold, cold air not as cold as before, plus a loud hissing sound that seems to be coming from the passenger side, under the ...
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1answer
93 views

Malfunctioning air conditioner mystery - recharge makes car run worse

The air conditioning in my 2002 Subaru Impreza has sort of worked the last couple years. This year it got bad enough that I began trying to fix it, but even though it's totally useless on a 30 minute ...
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31 views

Blower motor resistor Continuously Going Out…or not?

I drive a 2004 Chevy Monte Carlo and the A/C is usually fine. However, this car has gone through 4 blower motor resistors. What happens is that, randomly while driving or when turning the A/C on (it ...
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1answer
131 views

A/C Does Not Continuously Blow Cold

I have an '06 Chevrolet Silverado with a 5.3L L33 engine and 146k miles. I have been having issues with the A/C not continuously blowing cold air. It seems to cycle between cold and luke-warm. I have ...
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1answer
90 views

Can you use a vacuum pump on a charged A/C System?

I have a vehicle that is not currently running from which I am pulling the engine. To do so, I need to remove the A/C compressor and condensor, but it is currently charged. I have borrowed an A/C ...
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56 views

Volkswagen A/C Intermittent

I want to repair my Volkswagen Passat '07 A/C. I've taken it to two shops (dealer and independent) and they both say the entire a/c system needs to be replaced. The strange thing is, that sometimes it ...
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3answers
150 views

Engine idles badly and loudly when I switch on the A/C

The engine of my 1984 Toyota Carina AA60 works great when idling without the air conditioner running, but immediately after switching it on, it idles very badly, and a big noise starts up. If I move ...
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1answer
343 views

Do I need to replace the A/C Clutch, A/C Relay, or A/C Belt?

My '05 Mazda Tribute (just over 200,000 miles) is having problems with the A/C. A while back it was the freon according to the previous owner. I connected a pressure gauge to the low pressure end of ...
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2answers
65 views

How often should you get your air conditioner checked and serviced?

Every year I bring my car (now almost 3 years old) to the garage for a check up. When I bring it the people from the garage usually ask if I also want the extra air conditioner check and servicing. ...
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1answer
119 views

When I set the air flow to Defrost, it turns on the A/C?

On a 2001 Honda Civic. Having the temp dial to HOT. When I turn the air flow dial from FRONT to Defrost (windshield), it turns on the A/C button and the A/C motor kicks in also. It just started doing ...
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1answer
66 views

Intermittent aircon problem: Subaru Impreza Wagon 1996

Subaru Wagon Impreza 1996. Automatic, 1600cc. The gas (refrigerant) has been refilled recently, so that's all good. The air seems to be colder when the revs are higher (>2,500 rpm or thereabouts). ...
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2answers
26 views

What does it mean if felt- like pieces come through vent when AC is on in Toyota Avalon?

2006 Avalon xls 70k miles has just started throwing out a few pieces of what appears to be little triangles of felt like material through the vent when AC is on. Not a lot but is something breaking ...
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2answers
86 views

98 Volvo S70 Manual Climate Control to Automatic

I own a Volvo s70 with the Manual Climate Control AC Control Unit. Is it possible to simply install an Automatic Climate Control Unit? Or does this require additional work? (Not just drag and drop ...
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3answers
71 views

ac compressor empty anything to worry?

Recently I just had a small crash that broke a plastic flange from my ac system. I checked around to be sure nothing else is broken and it really look like this is the only broken thing. The ...
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2answers
324 views

air conditioner no longer working in 2005 Chevy Impala?

so after getting my breaks fixed (which was warped) the air conditioner stopped working. In winter it can only provide cold air, and in summer it can only provide hot air. how to fix this?
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1answer
890 views

How to fix leaking air conditioning schrader valve

I have a 98 jeep cheerokee sport. The air conditioning coolant leaks. After doing some diagnostics, I detected audibly a hissing sound coming from the low input port, leading me to believe the ...
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2answers
556 views

Easiest way to disable the A/C compressor

My A/C system has a leak in it and my compressor is making an awful noise: probably needs replacing. Winter is coming though, and I really don't want to spend any time or money on tracking down leaks ...
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1answer
22 views

1990 toyota a/c low on freon about every 18 months

I have a 1990 Toyota that needs R-12. What do I do now? I no longer can find R-12 to put in my system. Is there a place I can buy it being an individual?
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1answer
28 views

Late 90's Saturn - troubleshoot A/C

My son's car was hit in a low-speed collision...messed up the windshield and some cosmetic damage. Aside from that, the A/C has stopped blowing cold (but it still blows). A visual inspection of the ...
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1answer
78 views

1998 GMC Suburban Air Conditioner

I am a part time auto mechanic, and for the life of me cannot figure out this problem. No matter how many times I fix it, two weeks later it comes back. I cannot fix the air conditioner. I have ...
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2answers
397 views

1998 Dodge Ram AC clutch won't engage

When I call for AC on the dash the clutch on the compressor doesn't engage. I disconnected the clip that connects the wire to the clutch and checked for voltage and there was none. People say that ...
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1answer
178 views

Drying out wet carpet

My windows keep fogging up, even when it wasn't very cold outside. It seems to form in minutes and unlike regular fog, the droplets are massive! I have to run the AC on high for several minutes before ...
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0answers
34 views

Dodge 3500 AC-Nasty Smell-Diesel Truck

My Dodge 3500 ac was blowing fine this morning, and then all of a sudden it had a burn mildewy smell, and now its blowing hot air? Any suggestions?
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54 views

My AC blows steam and my fans didn’t come on

I have 1993 VW Jetta. I took it to the mechanic and got AC fixed. Two days later it overheated. Fans weren’t on. AC starts blowing steam after about ten minutes, even before it’s warm. I think he ...
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2answers
106 views

AC repair need help so bad it's hot!

08 PT Cruiser blows warm air but never gets cold. Tried Freon but it doesn't blow cold or last long at all. It sounds like it's clicking on and off not too rapidly when driving it blow slightly cooler ...
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1answer
361 views

AC not cold anymore on brand new VW Polo

I've brought a new VW Polo 2012 plate. It's only a few months since it was registered by the dealer. However all a sudden the AC has stopped working. When I press the button labelled AC the light ...
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3answers
2k views

What is involved to recharge the Air Conditioning System?

What is involved to recharge the Air Conditioning System? I believe you need a machine to do it, so I am guessing you can't do it yourself.
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1answer
104 views

Shutting off fans at highway speeds

On my vehicle (92 Civic) and most others I've seen, the condenser fan comes on whenever the A/C clutch is engaged. This seems like a waste of electricity (and thus fuel) when cruising at 60-75 mph, ...
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2answers
108 views

What is the purpose of AC re-circulator?

I think every car has re-circulator functionality in AC control panel. But I don't really use it, because it fogs up all of the windows. What is the purpose of the re-circulator?
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1answer
159 views

What should I use to lubricate the flaps that controls the temperature and which vents the air comes out of?

The control shafts that move the flaps which control the the hot/cold air and which vents the air come out have broken. The car is a 1999 93 Saab so I'm assuming that the hinges (the flap has a peg ...
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1answer
61 views

How can I tell if the AC is discharged?

Title basically says it all. I need to convert from R12 to R134, and was told that the ac was discharged when I bought the truck, but I want to double check. Thanks
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2answers
130 views

1995 Mercury Mystique - AC compressor turning on and off

The AC compressor in my car is turning on and off repeatedly, and not really getting a chance to get cool. From what I've read this can indicate low coolant. I've just had the system repaired a month ...
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2answers
305 views

1995 Mercury Mystique - No more cool air from AC

I've got a '95 Mercury Mystique that I have been trying to fix the A/C or for awhile (as budget allows). I just had an overhaul from the shop... Had a new compressor installed - the old one had ...
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1answer
23 views

Changing climatizer filter in Cordoba 2005

How do I change the climatizer air filter in a 2005 Cordoba (2nd series I believe)? I know for sure it's under the passenger seat, because I saw once a mechaning changing it. I want to do it myself.
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2answers
5k views

Is starting your car with the A/C on bad?

I was always yelled at by my father when I was first starting to drive when I left the A/C on when I turned off the car, and then later turned it back on, with the reasoning that I was ruining / ...
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1answer
2k views

Huge puddle of water under car

I parked my Dodge Viper after driving for about two hours. Half an hour later I noticed a huge puddle under the engine, on the passenger side. I am pretty sure it was water since it was thin, ...
6
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2answers
376 views

What problems can come from AC not running for years?

I have an 81 Chevy C10 that I inherited from my dad. This truck has mostly sat for the last seven years, with me running it enough to keep it in condition. I've been using this truck mainly for the ...
3
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1answer
562 views

AC not working in 2005 Chevy Cobalt

I have a 2005 Chevy Cobalt; its heater works fine, but AC doesn't seem to work at all. Fan works, but even at cooling set to max it just blows room temperature air. What could be the reason? Thanks!
2
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1answer
436 views

Understanding NA Ford Escort air conditioning modes

I had read through 1999 Ford Escort Owner’s Manual, and have few questions regarding air conditioning modes. The manual’s section on climate control states: The air conditioning compressor will ...
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2answers
751 views

Heat only works when engine is revving and at full power

On a 2004 Chrysler Sebring, the air only works when turned up to maximum power. At any of the 3 levels below that, no air comes out. Additionally, when the heat is on, it only blows hot air while the ...
2
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1answer
482 views

AC sytem repair after bad compressor

I had my AC compressor removed and replaced with a dummy pulley about a year ago. The reason was I had a long trip ahead of me and the compressor was making some funny noises, as if she was about to ...
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1answer
157 views

Adjusting the idle setting on a 2005 Cavalier

The air conditioning unit on my 2005 Cavalier only engages when the engine is idling above a certain level (observationally, it appears to be between 1000 and 1200 rpm). During the summer months, ...
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2answers
1k views

How much isopropyl alchcol to deodorize AC ducts?

i'm looking to remove an odor from my Corolla's fresh air intake. There are products available where you spray the product into the fresh air intake (near the windshield wipers), while the fan is ...
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5answers
26k views

How do you detect and deal with a freon leak?

My heat works great, but my AC is nonexistent. Just blows out normal air, which in this weather is quite hot and unpleasant. I had the freon refilled two years ago, but I haven't used the car in over ...
4
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3answers
4k views

Engine Bogs down with A/C or Defroster On

This started to happen relatively recent. It's 2003 Chevy Trailblazer. What is happening when the engine is idling and I turn the A/C on or the defroster (which also uses the A/C I believe), the ...