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

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1answer
4k views

Hard shuttering and engine dies when A/C is on at idle

When the car is idling and the A/C is turned the engine will shutter hard and/or turn off. I've already replaced the IAC valve; it was working for a little, but now it's back to shutting off. The ...
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2answers
2k views

How much isopropyl alchcol to deodorize AC ducts?

i'm looking to remove an odor from my Corolla's fresh air intake. There are products available where you spray the product into the fresh air intake (near the windshield wipers), while the fan is ...
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1answer
278 views

Renault Megane I 1.6 Airconditioning pump seized

My Renault Megane I 1.4 RT's airconditioning pump recently totally seized. When the seize happened, it also broke off the crank pulley. I have now replaced both the airconditioning pump and crank ...
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3answers
778 views

How to remove stuck AC barrier hose without damaging barb fittings?

I'm trying to remove 23-year-old AC barrier hose from aluminum line so I can replace them. I split the crimped ferrules and removed them. The hoses are stuck on. I'm sure they've permanently deformed ...
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1answer
398 views

2001 Saab 9-5 Air Conditioner Fan (upper vents) not working

2001 Saab 9-5 Wagon 9-5 Air Conditioner (upper vents) Fan stopped working. I've examined the DICE fuses, but they all seem to be good. What should I be checking next?
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1answer
368 views

Vibrating sound coming from air condition vent when turned up high?

When I turn my ac up high, I hear a vibrating sound coming from one of the vents. It vibrates more if I turn it up higher. What could this possibly be?
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1answer
1k 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 ...
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1answer
231 views

Am I getting ripped off by my mechanic?

We've been taking our cars to a local mechanic for years. Always been treated right, they've charged us fairly and everything was great. This year, though, we've had to take one of our cars in three ...
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2answers
3k views

Why might I experience a power falloff after starting my car with the AC On?

I have a 2000 Chrysler Neon which generally runs well. I have noticed that if I start the vehicle, turn the AC on and reverse out of the driveway, the engine seems to struggle/sounds like it is going ...
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1answer
3k views

Air conditioning gradually stopped working, hissing noise

On my 2003 Kia Sedona minivan, the air conditioning recently stopped working. This occurred somewhat gradually over the course of a week or so. I noticed today that if I turn the air conditioning ...
4
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1answer
3k views

Stuff coming out from my AC

I recently left my car (Honda Accord) in the parking lot of my apartment complex for a little over a month while I was out of town. It was working fine when I left. Now that I've come back, I've ...
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2answers
2k 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 ...
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1answer
11k 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 ...
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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 ...
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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 ...