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

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5
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2answers
101 views

How can I determine my HVAC layout?

Answers to Why does my A/C blow foul smelling air when it first turns on? suggest several fixes that depend on knowing where in the car they are located. I can't determine in any of my cars where the ...
5
votes
1answer
2k views

How to troubleshoot a fan that won't work unless it's on it's on the highest setting?

My car fan won't work unless it's on 4 (full power). I have 4 options of power for the fan 1 - 4 but nothing happens on options 1 - 3. I have taken the panel off and cleaned all the contacts for the ...
5
votes
3answers
428 views

Honda Odyssey engine cut out

I have a 1997 Honda Odyssey automatic, it stopped running in the middle of the road and when I tried starting it again it made a loud whining sound, then I turned the key off and tried again and it ...
5
votes
1answer
469 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 ...
5
votes
3answers
1k views

My Ford Focus 2009 has a lot of vibration when the A/C is off?

Most of the time cars vibrate when you turn the A/C on, but mine is the other way around, when the AC is off the car has a lot of vibration, if I turn on the A/C it will stop vibrating, I already went ...
5
votes
1answer
236 views

Do I have to get another Volvo?

I live in Florida and have mold allergies. Multiple times my 2008 Sienna van has a bad AC smell develop which makes me cough my head off. The dealer has cleaned the evaporator and ducts and the ...
5
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1answer
5k views

toyota corolla 2001 air duct smell [duplicate]

My 2001 Toyota Corolla recently started smelling very foul whenever the air system was turned on. According to the research I've done online, there is no cabin air filter to change. The glove box ...
5
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3answers
380 views

What AC component would likely be the problem with my consistent power loss while driving?

I have looked through the questions to find an answer to my question and none of the questions seem to similar enough to this. I have recently purchased a 2002 Subaru Impreza Rs and the car is doing ...
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0answers
21 views

Mercedes CL500 Water pump & AC

I am no mechanic and do not have any mechanic knowledge etc and would like to hear from experts here regarding an issue. My query ... On a Mercedes CL500 (2002 model) the water pump, idler pulley ...
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0answers
64 views

AC Cooling stops at high speed

My car ac works very fine in normal conditions. But when I drive it for awhile longer, and often at high speed, it stops cooling. I can still hear the fan sound loud and clear but air flow decreases a ...
5
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0answers
511 views

What causes more gas consumption - Idling with AC or Heat? [duplicate]

So I have begun doing some research on the effects of idling. So my question is, does idling with the AC or heater on affect how much gas is given off? If possible, please give the percent of extra ...
4
votes
4answers
15k views

What do I risk if I don't fix my leaking evaporator core on my 2004 Jeep GC?

The shop just tested my non-working AC, and recharged the freon - so, for now, it's working. Cost $118 all in. However, they tell me I have a leak in my evaporator core, and that it will take 16 ...
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3answers
417 views

Is it dangerous not having air conditioning cabin filter?

I'v got a Hyundai Accent 2005, recently I removed the ac filter because it was too dirty and the air didn't feell well but I couldn't buy it because of work, I have 6 days without the ac filter and I ...
4
votes
2answers
2k views

What's wrong with my intermittent air conditioner?

When the weather first starting getting warm last month, I turned on my A/C and it didn't work. The air coming out of the vents was warm and humid. A few days later it started working just fine and ...
4
votes
2answers
55 views

When you replace a car battery, would anything in the A/C system be touched?

Last year my A/C was fixed. Then winter came. Then I had to buy a new car battery and so I went to a mechanic[1] who I paid to replace the battery with a new one. My question is: When you replace a ...
4
votes
1answer
84 views

Mist coming out vent and water leaking under dash

When I turn on ac after a while a mist starts coming out and I have a leak under dash 💨 for about a month now. What can it be? Please help
4
votes
2answers
897 views

AC clutch engages but still no cold air

I've been reading for a week or so about how AC systems work and problems they could have. One consistent thing I've read is to check how the compressor clutch reacts when you turn on AC - if it ...
4
votes
2answers
5k views

Is it possible to charge car battery through cigar lighter socket?

I plan to modify my SUV into a camping car. Can I charge my car battery through cigar lighter socket with a 13.6 voltage when my engine is off? Also, can I power the air conditioning compressor and ...
4
votes
2answers
11k views

Air conditioner is hot on one side

My 2005 Chevy Silverado with dual zone climate is occasionally blowing hot air on the driver's side and cool on the passenger. It usually works fine for a few minutes before it begins blowing hot air. ...
4
votes
3answers
520 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. ...
4
votes
1answer
116 views

What is this odorless water dripping from passenger side of car? [duplicate]

I have water coming out of a pipe under my 2010 Renault Grand Scenic. There is not a smell to it. The water is coming from the passenger side and it is dripping from a wee rubber pipe.
4
votes
1answer
2k 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 ...
4
votes
2answers
11k views

How do I convert a R12 to R134A for my AC system?

I have an older vehicle that has AC, but it needs a recharge. It uses the older R12 refrigerant and it is very expensive and can be difficult to locate as it is not made in the US anymore. How do I ...
4
votes
1answer
66 views

Honda Brio AC Problem

My Honda Brio EMT 2015 model is having AC problems. The AC mechanic says the problem is in the ECM. Please enlighten me whether the BCM controls the AC or ECM does.
4
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3answers
3k 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 ...
4
votes
1answer
301 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 ...
4
votes
1answer
8k views

Stuff coming out from my AC

I recently left my car (Honda Accord) in the parking lot of my apartment complex for a little over a month while I was out of town. It was working fine when I left. Now that I've come back, I've ...
4
votes
1answer
17k views

Patch A/C condenser?

I have a small leak at the top of my air conditioning condenser. Last summer, I tried patching it with JB Weld. They do advertise as working with all metals, but I suspect it failed to hold because ...
4
votes
1answer
2k 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 ...
4
votes
3answers
673 views

How can I remove Factory Air Conditioning from a 1965 Mopar Big Block

I have a 1965 Mopar 383 Big Block with factory air conditioning. I would like to remove the air conditioning from the engine, including the A/C pump. Unfortunately, the belts for the accessories are ...
4
votes
1answer
464 views

2001 Saab 9-5 Air Conditioner Fan (upper vents) not working

2001 Saab 9-5 Wagon 9-5 Air Conditioner (upper vents) Fan stopped working. I've examined the DICE fuses, but they all seem to be good. What should I be checking next?
4
votes
1answer
1k views

A/C electrical problem on 92 Civic

I've had intermittent A/C failure on my 92 Civic DX going on for a couple years now. It's clearly an electrical problem. Normally it's solvable by putting some pressure on the control panel, but ...
4
votes
1answer
37 views

Chrysler Voyager 1997 - How to run defrost without automatic switch on the AC?

Is it possible to run defrost without automatic using the switch on the air conditioning? If so, how can I do this?
4
votes
1answer
69 views

2002 Ford Escape creaky steering (correlates to AC)?

2002 Ford Escape 3.0 XLT, 87,000 miles. Just started getting hot here so I've started using the AC, and consequently noticed the steering gets creaky like a rusty door. Off and on though, comes ...
4
votes
1answer
7k 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 ...
4
votes
0answers
25 views

2006 Jeep Liberty - AC clutch won't engage

The AC clutch on my Jeep Liberty 2006 won't engage. Here is what I have checked so far. Fuse 14 in the passenger cabin 21 in the engine compartment are ok AC relay ok When I jump the AC relay I ...
4
votes
0answers
54 views

2014 Toyota Matrix: inadequate AC

I bought my car in November 2014 and from day-one the AC doesn't seem to work very well. In the winter when it's set to defrost the windshield, there is a lot of fog build up on the glass, and the air ...
4
votes
0answers
51 views

Highest Fan Speed on AC/Heater Blower no longer works.

I've found a couple of posts here about blower fans that only operate on high speed, but the issue I'm having is the opposite. All of the fan speeds work except for the highest speed (really the only ...
4
votes
0answers
336 views

AC suddenly stopped working?

After few hours driving in town with a lot of traffic my AC was working fine, keeping low temperature inside. Then I had to stop the engine for few minutes and when I turned it on, although the AC ...
4
votes
0answers
38 views

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. ...
3
votes
2answers
938 views

How to simulate that automatic-engine stop feature?

I have a brand new Honda Vezel (Japanese market only). It has this fanciful but useless and nuisance feature that shuts down the engine when I come to a stop and automatically restarts the engine ...
3
votes
2answers
2k 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 ...
3
votes
2answers
319 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?
3
votes
2answers
591 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 ...
3
votes
3answers
587 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 ...
3
votes
2answers
21 views

1991 lexus ls400 v8 AC condenser removal

I recently crashed my Lexus ls400 and damaged the ac condenser, I don't really want to waste cash on it what can I do to cancel AC system?
3
votes
1answer
192 views

How to know BMW e46 AC type

Apparently there are two types of air conditioning units - IHKR and IHKA - in BMW e39's. I'm curious whether there are different types in e46's and, if so, how do I find out?
3
votes
1answer
38 views

Will I damage my car if I don't fix evaporator core leak?

Pretty sure my evaporator core has a leak, super expensive to fix. Can I just charge it 3 times a year or so? Is this going to damage my car?
3
votes
1answer
49 views

Mazda 3, temporary acidic vinegar/mayonnaise smell

Lately I have noticed, just after switching on the A/c, I smell some sort of a vinegar/mayonnaise mixed smell for about 5 mins, post which it disappears automatically.What could be the possible cause, ...
3
votes
1answer
873 views

How often to start/drive a vehicle to keep it healthy?

In order to keep a gasoline-powered vehicle healthy, how often does it need to be started or driven? Please specify if it actually needs to be driven, or if just starting it and letting it run is ...