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

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2
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0answers
15 views

Is Lysol a good treatment for the musky AC smell? [duplicate]

So i bought my BRAND NEW Corolla 6 months ago. Recently i started smelling a musky smell coimg out of the AC. The smell is especially persistent when the AC is off (yes OFF, not ON) So I went to the ...
9
votes
1answer
116 views

My feet turn black

I left the pedicure salon, started my car and drove less than 3 miles to pick up something from the store, when I stepped out of my car my feet were black... and I don't meant just from dirt, It ...
10
votes
6answers
1k views

Can a car AC unit be run on just the car battery?

This might be a silly question but I was wondering if a car AC unit be run off entirely on battery or alternator? As this could help in Preventing power loss during important times such as ...
3
votes
2answers
29 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?
5
votes
1answer
115 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 ...
3
votes
1answer
57 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
0answers
36 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 ...
8
votes
1answer
134 views

Ford Econoline Van AC Failing

If the vents start putting out hot air when accelerating or driving up hills but are ice cold when idling, is that a sign of a failing blower pump or leak? I am dealing with a Ford Econoline E350. ...
4
votes
1answer
121 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.
2
votes
1answer
91 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 ...
3
votes
0answers
31 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 ...
0
votes
0answers
21 views

Jetta 2001 gls 2.0, AC clutch won't come on!

I have a problem, 2001 Jetta 2.0 GLS, installed entire new system, compressor, clutch, dryer, expansion valve, worked great for about 4 months then nothing. Clutch won't come on. ACted like it was the ...
3
votes
1answer
35 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.
5
votes
1answer
72 views

Should I use a shorter accessory belt?

I've had the A/C discharged on an older truck (2001 Grand Cherokee 4.7L v8), and soon I plan to remove the entire A/C system, specifically, the compressor. Is there anything that I should be ...
7
votes
1answer
107 views

Measuring A/C refrigerant I got 96 PSI, is 96 PSI bad?

I bought a car refrigerant gauge online because my A/C is not cooling the air at all and the first suggestion was to check your refrigerant to see if it is empty or low. I found out where my car's "...
4
votes
2answers
87 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 ...
2
votes
0answers
31 views

On my '99 Grand Am the electric windows, A/C, dash gauges, speedometer stop working sometimes

Sometimes they come back on in a few minutes but sometimes it's hours or maybe a day and they will all start working again at same time. Other things like radio, CD player, cruise, horn, wipers, door ...
2
votes
1answer
57 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 ...
6
votes
2answers
251 views

Which knob setting best cooks the mold inside HVAC?

I am trying to eliminate odors inside HVAC by cooking the mold that is presumably causing them, as suggested in http://mechanics.stackexchange.com/a/146/15334 (which got 39 upvotes) However, I don't ...
11
votes
1answer
431 views

Does recirculated cabin air pass through the air filter?

In general, does air recirculated in the cabin (i.e. when the re-circulate button is engaged on the dash) pass again through the cabin air filter? I know that the cabin air filter filters outside air ...
4
votes
0answers
59 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 ...
1
vote
0answers
27 views

How to eliminate odors from the vents? [duplicate]

How to eliminate odors from the vents? (The odor is noticeable, even though it's been months since I used the A/C) Many people recommend spraying Lysol Disinfectant Spray into the A/C air intake, ...
0
votes
1answer
58 views

Strange noises from AC/Dash board

So I'm hearing a creepy/whooshing sound coming from the dash board and the sound disappears when I turn off the AC. Time to have the AC system replaced? Recently had coolant replaced. Anyone ...
10
votes
2answers
298 views

Where can A/C condenser be located other than in front of radiator?

1953 F-100 w/ 428 Cobra Jet FE motor. I want to spare my grill and avoid putting the condenser in front of the radiator. Plus, it's already a beast to cool in hot weather, and I live in hell. (It's ...
5
votes
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 ...
5
votes
2answers
141 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 ...
4
votes
1answer
40 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
149 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
5
votes
1answer
351 views

15 ppm of CO levels inside car

I constantly measure 15 ppm of CO inside my car after a long commute (~1 hour of continuous driving, but the overall trip can take from 1.5 to 2 hours depending on my destinations before heading home)....
3
votes
1answer
121 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 ...
2
votes
2answers
117 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
2answers
40 views

Is there a way to clean air getting in the cabin?

A friend of mine lives in a very polluted city and she gets headaches every time she gets stuck in the traffic jams, lasting easily one hour. The cars there are very old and polluting, even if the ...
2
votes
1answer
42 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
123 views

Aircon doesn't cool when car is stationary

I have a Hyundai Tucson. Recently I noticed the Aircon doesn't cool when the car is working and not moving. When I move for a few minutes Aircon starts to cool again. What is wrong ?
3
votes
0answers
65 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 ...
1
vote
1answer
56 views

Ac on 2006 jeep liberty

Does the ac system have to be empty to change high pressure switch on 2006 jeep liberty. I have tested everything on the system electrical and I have power ac is full of Freon but clutch will not ...
4
votes
0answers
55 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 ...
3
votes
2answers
245 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?
7
votes
1answer
10k views

Low-side and high-side pressures lower than expected after AC repair

I just did my first automotive AC repair, after the compressor in my 2004 Lancer 2.0 ate itself, cracked its casing, and blew all the refrigerant out. I think I did the repair & recharge ...
3
votes
2answers
1k 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 ...
2
votes
2answers
105 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 ...
3
votes
1answer
44 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, ...
1
vote
0answers
18 views

Automatic A/C recirculation problem [closed]

I have a Toyota 2014 4-Runner limited and I have a problem where the recirculation button will automatically turn off. It works fine when it's on, but is there a way to turn off the auto turn off?
3
votes
1answer
719 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 ...
7
votes
1answer
520 views

2014 Subaru Forrester AC Compressor clutch noise, slippage

We have a 2014 Subaru Forrester whose AC Compressor clutch operation is unlike other cars I've ever owned. The video linked is from when the car is cold and AC is engaged. It appears that the clutch ...
2
votes
1answer
1k 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 ...
1
vote
0answers
32 views

How to close the re-circulation flap? [closed]

I have a 2001 Chevy Malibu and I am having a problem with the re-circulation switch for the AC. I am trying to figure out how to close flap so there is no outside air coming in can anybody help me ...
2
votes
2answers
521 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 ...
3
votes
1answer
2k 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 ...
3
votes
1answer
253 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 ...