Questions tagged [hvac]
HVAC - Heating, Ventilation, Air Conditioning.
187
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Where is the e46 AC drain hose located?
I've tried looking online, but I can't find a description and the images are too zoomed-in to tell exactly where the AC drain hose is. Another problem is that the hose might vary between generations.
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- 442
6
votes
1
answer
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How do final stage resistors fail?
I replaced the FSU on my BMW today to restore normal fan speeds to my HVAC blower (having just 20% fan speed in 40+ °C isn't always comfortable).
After removing the old resistor pack, curiosity got ...
- 39.1k
2
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4
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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 ...
- 442
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2
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1986 VW Westfalia van A/C
I had my AC refrigerant professionally changed to Red Tek in my van. It worked well for 2 or 3 years but then stopped cooling. I successfully refilled with difficulty and it was fine for a further ...
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2
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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 gets....
- 31
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How to get items out of the HVAC system from a 2003-2007 Honda Accord
Before I ruin my dashboard/car, I wanted to know if my approach is correct. I don't know much about cars but logically, it seems like a simple enough task to remove vents, reach in and grab items, ...
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1
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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 , ...
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1
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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 hole/...
- 243
2
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1
answer
883
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My blower has stopped working with heater or a/c
I have a 2005 Chevy Silverado 1500 HD SL Crewcab. The blower has stopped working with the heater or a/c. I have checked all the fuses I can find in the owners guide and they are good, don't see and ...
- 21
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Mazda5 - any way to disable "recirculation off while in defrosting mode" feature?
I have Mazda5 2013, trying to fix an annoying issue - every time I set air to blow towards windshield, recirculation is turning off - and there is no way to turn it back on if selector is still in the ...
- 257
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What's this strangely marked control on my Eclipse?
My 1995 Mitsubishi Eclipse, and presumably other Mitsubishis of the same era, has a control over by the rear windshield wiper control, near the center vents. It's got 2 pictures of a person sitting. ...
- 12.5k
2
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1
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123
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A/C Issues with a Mechanical Temp. Control
First Start of my A/C is good but when my evaporator is cold, my A/C Goes On and Off Rapidly. On for a second then Off for a Second.
Does it have to be the Mechanical Temperature causes the problem?
...
- 201
5
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5
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2k
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Why is there no vent option for combined defrost/face?
I've wondered about this one question for the better part of twenty years: why is there no option for you to set the air vent to split between face and defrost?
That is, the airflow options on (...
- 53
3
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2
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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 ...
- 33
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1
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2011 Grand Caravan only blows hot air to the rear and passenger
I bought a 2011 Grand Caravan last November, maybe that was my mistake, buying in the winter.
It has the dual climate control (one driver, one passenger) and a rear control as well.
Fast forward to ...
- 163
3
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1
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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 defrost/vent/...
- 131
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2
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2007 Ford Ranger no heat
My 2007 Ford Ranger has no heat when I turn it on, but the COLD A/C works beautifully? All of the sudden the heat stopped working. It doesn't get humid or tepid at all, just no heat. What can I look ...
- 183
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1
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2008 Chevrolet Impala. Clicking noise behind the glove box - I believe it has something to do with a diverter valve in heating and cooling system?
There is a clicking noise behind the glove box. I believe there should be a sensor or something to stop the motor for the divertor valve. It trys to keep shifting the valve and it clicks when it ...
- 11
6
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1
answer
1k
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Vauxhall Vectra C Blower Motor Sqealing / Clunking
I have just replaced my Blower Motor Resistor as my fan wouldn't work on any setting other than 4 (in line with a previous post: How to troubleshoot a fan that won't work unless it's on it'...
- 241
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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 ...
- 241
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3
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Defogger won't work in 2008 Chrysler 300
As winter is now here a functional defogger is a requirement yet this year my car won't defog no matter what I try.
All vents in the car are functional and blow whatever is pumped through them (eg I ...
- 151
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What's the quickest way to defog a windshield?
For a properly functioning auto, what's the quickest way to defog the windshield? There are lots of air control options - hot vs. cold air, exterior vs. recirculated air - but which are the most ...
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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 ...
- 153
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3
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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 ...
- 101
2
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188
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What to check on HVAC after verifying blower motor works?
I drive an 2003 Acura TL. This week, the fan stopped blowing air, regardless of what setting the temperature / A/C is one.
I pulled out the blower motor and connected a multimeter to it. The ...
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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, ...
- 2,591
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Blower resistor blowing on '02 Chrysler Voyager
We've got a 2002 Chrysler Voyager with something of an odd problem. The blower resistor likes to burn out. It's easy to replace, but after doing so, our vent speeds go out one by one, until all we ...
- 123
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My 2007 Jeep Commander is blowing hot air into the cabin even though the temperature is set to cool
Even if I have the fan set to off and the temperature dial set all the way to cold, extremely hot air is coming from my vents into the cabin. It seems to get worse at higher speeds.
If I turn the ...
- 133
6
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2
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Foul Smell when turning on air conditioning
I have a 2007 Chrysler Aspen, and recently (past 2 weeks) when I turn on the ac, I notice a 'foul' smell, like burnt rubber, or even sulphur-like. The smell will last a few minutes and will gradually ...
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3
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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 ...
- 121
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My AC works well at night only
I'm unhappy with the performance of my '04 Pontiac GTO's AC.
Here are the symptoms:
Cooling goes down to zero when the car is stationary, starts to cool after the car has been moving for some time
...
- 39.1k
5
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1
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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 ...
- 53
4
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4
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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 ...
- 265
9
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2
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My vents randomly switch between face / windshield... how do I fix this?
I have a 1998 Ford Windstar (more details on demand if necessary.) I rarely use any vent setting besides "face", and I try to avoid using AC because my gas mileage is already lousy.
About two months ...
- 1,122
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5
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When car is standing still, I smell Diesel exhaust. Why?
In my 2003 Opel Vectra, the cabin air smells of Diesel exhaust while stopped at e.g. a red light.
The exhaust smell goes away when driving, and it also doesn't come back if I turn the ventilation off ...
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2
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Why might lower settings of a dashboard fan not work if the highest does?
My wife bought a Nissan Note second hand and the internal ventilation fan works on the highest setting (3 or 4) but not on the lower settings. We've checked the fuses and all seems fine there. Could ...
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how can I quiet a 'chirping' ventilation fan motor blade?
I have a 2006 VW Golf and the internal fan motor that blows the a/c & heat will start to 'chirp' (sound something like a bird singing) randomly.
I believe the fan blade needs to be lubricated, ...
- 2,620