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

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4
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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 ...
3
votes
1answer
10k views

Patch A/C condenser?

I have a small leak at the top of my air conditioning condenser. Last summer, I tried patching it with JB Weld. They do advertise as working with all metals, but I suspect it failed to hold because ...
4
votes
2answers
2k views

What's wrong with my intermittent air conditioner?

When the weather first starting getting warm last month, I turned on my A/C and it didn't work. The air coming out of the vents was warm and humid. A few days later it started working just fine and ...
6
votes
1answer
1k views

Heater smells like sulfur

I drive a 2006 Toyota Sienna. When driving with the heater on I often smell sulfur. This is more common when I am driving up a hill, but if I turn the heater off, the smell goes away. What causes this ...