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

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4
votes
1answer
111 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.
2
votes
2answers
4k views

2009 Chevy Malibu 2.4 off and on temp Gauge on C, No AC and fan comes on right away

My Chevy Malibu (2009 2.4) is acting a tad whacky! It either acts totally normal, or all below occurs at the same time. . . 1) coolant fan(s) come on when I start car 2) temp gauge stays on C (dead) ...
4
votes
0answers
23 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 ...
9
votes
2answers
13k views

Huge puddle of water under car

I parked my Dodge Viper after driving for about two hours (in July, ~90°F, AC at full blast). Half an hour later I noticed a huge puddle under the engine, on the passenger side. I am pretty sure it ...
2
votes
3answers
620 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 ...
0
votes
0answers
16 views

AC blower not working

In my 2008 Prius the AC blower suddenly stopped working today. I checked the power source and all the fuses are good and the current is steady at 12v when the power is on. However, once connected to ...
2
votes
1answer
30 views

How to clean the mold inside the A/C drain hose?

I have a Toyota Corolla 2013. I know you can probably blow air or use a pen to clean the end of the A/C drain hose from underneath the car, but how can you clean the hose of the mold? Is there a safe ...
1
vote
1answer
24 views

Coolant leak after AC recharge

Went to recharge my AC system on a 2000 Acura TL, the pressure gauge showed the pressure being on the line of "empty" and "filled", put some refrigerant in and the gauge didn't move at all put more in ...
7
votes
1answer
290 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 ...
4
votes
2answers
10k 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. ...
9
votes
3answers
531 views

What can I do to prevent my air conditioner from smelling moldy as the temperatures begin to rise?

What can I do to prevent my air conditioner from smelling moldy as the temperatures begin to rise? Every year someone I know or myself begins to get an odor from their air conditioner that's musty or ...
6
votes
1answer
109 views

Is it bad to mix different refrigerants?

I'm mainly wondering about different brands of refrigerants. In other words, mixing one brand of R134a with another brand, not mixing R12 and R134a (or anything like that).
6
votes
1answer
68 views

Does turning fan speed down affect AC compressor load

When I have my AC running, and I turn down the fan speed, does this also change the load the AC puts on the engine? Since the compressor puts load on the engine, and reduces fuel economy, I am ...
6
votes
2answers
574 views

Air Conditioning not cold on 2011 Honda civic

I have a 2011 Honda Civic LX with about 70k miles on it. As of a few weeks ago the AC really started having cooling problems; however, this all seemed to happen gradually. It seems to get a bit colder ...
2
votes
1answer
27 views

Lexus HS 250h car; a/c noise from inside the car

I am getting these kind of noise https://youtu.be/QhmK7oDX1tE Any idea what's wrong? Car details Year : 2010 Model : Lexus hs250h Its happening when I switch AC/Fan on and it last for 30 sec and ...
12
votes
3answers
3k views

Why is car A/C typically less reliable than fridges/freezers?

I just had the A/C in my car die on me again; air coming through the vents with the A/C is just as warm with it turned on as off. However, my fridge/freezer is something I've had for over 5 years and ...
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?
15
votes
2answers
1k views

What are the dangers of refilling your air conditioner yourself?

Both of the Haynes manuals for my cars list refilling the refrigerant in your car as a do it yourself procedure. Both vehicles use R-134a refrigerant and the manual shows them being recharged with a ...
7
votes
3answers
91 views

How do I fix my Heater & A/C in my car, suspect vacuum problem?

I didn't see this question asked after a search so I thought why not. I have a 97 GMC Sonoma with 90k miles that I barely drive. Since the hot summer is coming fast I went to use the AC and I am ...
6
votes
1answer
26 views

2010 TDI Jetta Strange A/C Pressure Readings

I recently replaced the compressor and dryer at the suggestion of a nearby shop. I've charged the system and the high side reads a solid 100psi the low side cycles between 70 - 110. Cycle time is ...
4
votes
3answers
509 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. ...
5
votes
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 ...
2
votes
0answers
14 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
100 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
5answers
916 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
20 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
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
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 ...
3
votes
1answer
121 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 ...
3
votes
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 ...
1
vote
2answers
257 views

Ford Explorer Weak Air Flow Defrost/Air Conditioning

My 2002 Ford Explorer developed a weak defrost late in the winter (I don't drive it all that much) and now in summer the air conditioning has a very weak air flow -- doesn't cool anything. I'm sure ...
2
votes
0answers
20 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 ...
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.
2
votes
2answers
93 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
1answer
184 views

2001 Plymouth Neon-Smell coming from vents when on

Whenever I have the heat or ac on in my car it smells fine until I stop. If my car is not moving and the heat or ac is on it smells something like exhaust. Sometimes it is stronger than other times. ...
5
votes
3answers
427 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 ...
2
votes
1answer
232 views

2009 Civic DXG leaking a LOT of fluid from AC drain tube, coolant low

Does the A/C compressor run/engage under certain conditions (like defrost) even if A/C has not been on for a week? We got a puddle of about a 1/2 liter of (confirmed) clear water under the car ...
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 ...
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, ...
6
votes
3answers
4k views

AC blower won't turn on after replacing battery

I have a U.S. 2011 Volkswagen GTI. After the car wouldn't start (starter would crank but engine would not turn on) I decided it's probably time to replace the battery, and did. Car starts fine, but ...
2
votes
1answer
61 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
144 views

1999 Toyota RAV 4 Car Stops when AC is powered on after driving for a while

While driving my 1998/99 Toyota RAV 4 car for sometime with the Ac powered on, the engine goes off. Once i start the car, it responds and it does not stop at all when i off the AC, once AC is on , ...
2
votes
2answers
528 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?
3
votes
1answer
833 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
48 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, ...
5
votes
0answers
60 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
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 ...
8
votes
1answer
51 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
65 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
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 ...