HVAC - Heating, Ventilation, Air Conditioning.

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2
votes
1answer
331 views

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 ...
5
votes
3answers
2k views

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 ...
2
votes
1answer
83 views

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? ...
3
votes
3answers
324 views

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 (...
4
votes
0answers
57 views

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. ...
5
votes
2answers
5k views

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 ...
2
votes
2answers
8k views

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 ...
15
votes
3answers
13k views

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 ...
5
votes
1answer
501 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 ...
2
votes
1answer
170 views

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 ...
1
vote
1answer
1k views

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 ...
5
votes
2answers
2k views

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 ...
5
votes
1answer
3k views

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 ...
5
votes
2answers
4k views

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 ...
8
votes
2answers
1k views

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, ...