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

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AC Recharge- What did I do wrong?

I drive a 2010 VW Golf. The AC has not been working at all lately. Before taking it in to the pros, I bought an AC Recharge Kit and only got to step 1 on the directions. When I hooked it up to the ...
3
votes
2answers
3k views

Location of Blend Door Actuator in 2003 Chevy Malibu

I am fairly certain that my Blend Door actuator is faulty. I get all hot air in my car, which is great for the winter, not so much for the summer. I want to replace it, and followed directions on ...
3
votes
1answer
29 views

Unable to redirect airflow from floor to defroster, etc.in 2006 Cobalt

I replaced the heater / AC control module, but the airflow deflector still doesn't change. It is stuck on floor. It sounds like the module is trying to change, but nothing happens.
3
votes
1answer
40 views

Will using the AC accelerate refrigeration loss due to a leak?

I developed a leak in the lines of my AC system (verified). The system has been recharged so it is working for the time being, but I do not expect it to last indefinitely. I am due to buy a new car, ...
3
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1answer
393 views

Paint thinner/magic marker smell coming from AC

I recently purchased a 2012 Honda Civic (~36,000 miles). The AC will intermittently give off a paint thinner or magic marker smell. From what I understand, antifreeze has a sweet smell, and mold or ...
3
votes
1answer
164 views

After replacing A/C Schrader valve and O-Ring, Do I need just refrigerant?

It looks like I lost all of the refrigerant due to a leaky schrader valve and O-ring. The A/C stopped cooling a few months ago, but I just got around to tracking down the problem. Do I need to flush ...
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3answers
174 views

How to get mold smell out of car - 07 Ford Mustang GT

This car sits under a cover for an unfortunate amount of time. It's a 2007 and only has 39,000 miles, if that's any indication. It probably only receives love during the summer and sporadically ...
3
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1answer
64 views

External air mode smells bad [duplicate]

My Hyundai Sonata 2008 smells sour, when the air ventilation is set to external rather than internal. I always immediately turn it to internal air to avoid the smell. Where is the ventilation ...
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1answer
1k 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!
3
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1answer
263 views

Am I getting ripped off by my mechanic?

We've been taking our cars to a local mechanic for years. Always been treated right, they've charged us fairly and everything was great. This year, though, we've had to take one of our cars in three ...
3
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1answer
9k views

Hard shuttering and engine dies when A/C is on at idle

When the car is idling and the A/C is turned the engine will shutter hard and/or turn off. I've already replaced the IAC valve; it was working for a little, but now it's back to shutting off. The ...
3
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1answer
73 views

Rough idle when AC is on

My Toyota Vitz 2007 idles roughly when AC is on. If AC is turned off, the idle becomes much smoother. This vibration is more visible if I suddenly stop in traffic. As soon as I stop, several rough ...
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1answer
179 views

A/C Compressor not turning on?

Trying to diagnose an issue with my wife's 2001 Honda CR-V air conditioning. First off, the A/C gets down to 50F when car is running idle for several minutes, so it's not too bad ... however on hot ...
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3answers
74 views

Smokey A/C from 07 Toyota Camry XLE

A while back my wife mentioned that smoke was coming from the front vents after a bit of driving with the A/C on. This does not happen regularly and the Freeon levels do not change. The other day, I ...
3
votes
1answer
32k views

A/C clutch turns on and off frequently

I have 2011 Mazda CX7. When I first turn the car on I can see the A/C clutch being engaged, but after the car runs for bit, then clutch disengages. After a while it starts to engage for few seconds ...
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1answer
2k 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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1answer
686 views

Adding air condition (con) CONTROLS to a Peugeot 206

I emphasise CONTROL because pug has an air con button. I have heard people say it is too expensive/difficult/ just not worth retrofitting air con to a car but I would like to swap the single button ...
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2answers
438 views

Horrible rotten feet smell from my 2013 chevy malibu ltz [duplicate]

I just purchased a 2013 Chevy Malibu LTZ and every time I turn on the air conditioner, there is this horrible odor of rotten feet that comes out of the vent. The longer I run it, the stronger it ...
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2answers
562 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 ...
3
votes
1answer
124 views

No airflow on any driver side vents

1993 Oldsmobile 98 Regency Elite. Hello, I have an odd problem where the driver side vents have almost no airflow coming out of them. This is for all positions, so no combination of ...
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0answers
18 views

A/C only kicks on when set to defrost

07 Town & Country - The a/c compressor only kicks on when I have the it set on defrost. When I move the setting to vent or anything else it blows cold for about 3-5 mins then it gradually gets ...
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0answers
21 views

Why does the air condition climate control suddenly blows cold air?

I have a BMW 320i 2008. When I turn on the hot air and Automatic recycle, after a point, it blows cold air for 5-10 mins, then back to hot and so on. This doesn't occur when I put the recycle on. Any ...
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0answers
62 views

2010 Volvo S80 - Cabin HVAC system schematics

Something in my sedan's cabin air system smells bad (organic bad, not mechanical bad), even after changing the cabin air filter. I have a bore scope, vacuum, compressor, and hoses sufficient that I ...
3
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0answers
131 views

Inverting the A/C VSV Switch

I bought a 2E Carburetor for my 4G13 Engine. My Problem is that 2E Carburetor Idle Up A/C Vacuum Actuator needs vacuum when the engine is on and when the A/C is On, the idle up vsv will be Off (or no ...
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2answers
289 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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4answers
3k views

Should I insulate the air conditioner pipe in my car?

I got my refrigerant re-filled and observed that the pipe going into the compressor gets very cold on the operation of the AC. IF it is getting cold it means that there is a possible heat loss and the ...
2
votes
3answers
622 views

HVAC is not blowing. Is it most likely the blower motor?

I have a 1998 Buick Park Avenue (standard not ultra). Recently the heating and air stopped blowing. It acts normal in every other way (lights and indicators work as normal) but I am not getting any ...
2
votes
2answers
94 views

Ford Escort overheats when switching FROM highway TO city driving

I have a 1998 Ford Escort with 113k miles. It's never given me any major problems before, except for the AC going out about 4 months ago (details to follow). In the past week while driving with the ...
2
votes
4answers
1k views

BMW e46 cabin air vent smells [duplicate]

The cabin vents smell like mold and mildew. It's worse during humid days. I'm pretty sure the AC has something to do with it (since it smells bad when I turn the AC off and keep the fans blowing) but ...
2
votes
2answers
210 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 ...
2
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2answers
125 views

How do I flush out bad smells in my air conditioning? [duplicate]

My car seems to have a pretty bad smell in the air conditioning. WHat is the best way to flush out these smells?
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3answers
177 views

Popping Sound when A/C is on - 2009 Kia Rio

I've noticed that, when I first start my car, there is an intermittent popping or clicking sound coming from up near the engine (sometimes it almost sounds like a very quick burst of air escaping a ...
2
votes
1answer
44 views

Correct AC Compressor for '04 Dodge stratus SE 2.7L 6cyl

Apparently, there are two types of AC compressors for my '04 Dodge Stratus SE, 2.7 liter 6 cylinder engine, and I need to know which one I need. I tried looking on a parts store, but I couldn't get ...
2
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2answers
529 views

2003 Toyota Camry 300 rpm with AC on

I have a 2003 Toyota Camry 4 cylinder with the AC on it runs at 300 rpm and stalls. What could be my problem and is there anyways to adjust the idle?
2
votes
1answer
11k 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 ...
2
votes
1answer
62 views

Detect AC(on/off) and Window(open/close) of CAR using OBD

Is there any way to detect AC(air conditioner) and Window(open/close) using OBD? I am putting links below for the OBD reader but I am unable to find any way to detect the AC(air conditioner) and ...
2
votes
1answer
45 views

For cleaning HVAC with Lysol, should the AC be on or off?

Many people recommend spraying Lysol Disinfectant Spray or similar products into the HVAC intake to kill mold and bad odors inside HVAC. Should the AC be on or off for this procedure? As far as I ...
2
votes
1answer
2k 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 ...
2
votes
1answer
976 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 ...
2
votes
2answers
2k views

Permanent fix to AC drain clogging in '94 Jeep Grand Cherokee?

For some time, my Jeep has had something leaking or draining into the carpet in the front-passenger floor space. My mechanic has told me that the AC drain keeps getting clogged by leaves and such, ...
2
votes
2answers
79 views

A foul odor inside vehicle, like something is dead inside vehicle (Toyota Camry 2002), especially when car is not running [duplicate]

Over the past 5 days, I detected a really bad foul odor inside my 2002 Toyota Camry. It is worst when the car sits overnight, or for any length of time. As soon as I open the car door, "the smell ...
2
votes
1answer
38 views

What compressor type does 2010 Lexus RX450h use

I'm a student studying motive power program at a college. Our instructor gave us an assignment to find out the specific vehicle's compressor type and which component is used TXV (throttle expansion ...
2
votes
1answer
443 views

Should I replace the AC's expansion valve?

The problem: Mazda 3 2008 125 K miles this is the first major ( > $300) thing to need fixing on this car The problem originally was that when you turn the AC on you get some cool air for about 20 ...
2
votes
2answers
307 views

Transmission Fluid Leaking from AC Condenser. Can I replace it myself and drive it to shop to do the before & after work?

My car is a Mazda Tribute My goal is to have the AC Condenser replaced. However, there are certain steps in the process that I can't do myself. These are: Before work: Discharge the AC Empty the ...
2
votes
1answer
155 views

Which convenience features in a car affects fuel economy?

I understand that the A/C compressor runs with the engine belt, so it will always uses some HP when engaged, therefore it will have some effect on fuel consumption. What I want to know if there are ...
2
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1answer
1k views

AC/heater fan only blows at high speed [duplicate]

All of a sudden the AC/heater fan on my 2004 Toyota Matrix does not work properly. The fan has four positions. The first 3 no longer blow air at all, but the 4th position (the highest) works. A ...
2
votes
3answers
963 views

air conditioning working intermittently 2004 Ford Freestar

Hoping we can find a solution to our AC problem. Normally our AC is just blowing out warm air when AC is on. Warm air comes out in front and back of van. The air does not normally work but once in ...
2
votes
1answer
2k 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 ...
2
votes
2answers
103 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 ...
2
votes
1answer
42 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.