Why don't my car radio and air conditioner work?
Like others said, start by having the two fuses checked. If you have an owner's manual, look in the index to see where the fuses are located. They can be anywhere - inside the glove box, under the dashboard, under the hood, etc. The manual would show you where the fuse panel is. It should also have a diagram showing which fuses go to what. If you can find the ones for the air conditioning and the radio, you can pull them out and invest a couple of dollars by bringing them to an auto supply store and getting replacements. If you are uncomfortable trying to do this or don't have the information, you can bring your car to a mechanic, not a car radio guy. I wish you the best in getting this taken care of. I know what a pain it can be.
Does the (AC) air conditioner work if a car is parked, but with the ignition on, and the engine running?
When the car is driving, the air flow through the condenser is both from the fan and from the air from the car moving forward. The air passes one time through the condenser, which is located in front of the radiator.When the car is parked, the air flow is from the fan only. The amount of recyle is higher, which increases the inlet air temperature to the condenser.If the cooling required load is very high from sunlight, high occupancy, high outside temperature, and high humidity, the air conditioner could be overwhelmed and the inside temperature setpoint may not be able meet.Also, if the condenser is fouled with bugs and dirt, it reduces its cooling capacity.So the answer is a maybe to be able to maintain the temperature setpoint.
Will my car defroster work with no air conditioner?
I have a 2000 Suzuki Grand Vitara and the A/C compressor froze up. It was too expensive to fix so my mechanic disconnected the A/C system. Don't I need the A/C system working for the defroster to work correctly?
What would cause my car air conditioner to stop working suddenly.?
no, if the freon leaks out there is a low pressure cut off switch that will prevent the compressor from working so as not to burn it up. Check fuses first then if you don't know how to check the low pressure switch or the rest of the system you will need to take it to a shop
If my car air conditioner is not consistently blowing cold air, what is the problem?
Hex Auto Parts Common AC Compressor ProblemsCool But Not ColdIf the air conditioning is set to max cool and fans on high, but is only blowing moderately cool air:1. Check to see that the cooling fans on the condenser or radiator are running when the air conditioning is on.2. Look for any restrictions like leaves, bugs or dirt that would keep air from passing over the condenser.3. Check the cabin air filter to ensure that it is not clogged.4.Check the pressures in the system using a manifold gauge set.Compressor and ClutchThe AC compressor clutch is one of the most common points of failure on the compressor.The compressor is the work horse of the air conditioning system, powered by a drive belt connected to the crankshaft of the engine. When the air conditioning system is turned on, the compressor pumps refrigerant vapour under high pressure to the condenser.1. With the engine running turn the A/C on max cool, set fans high, and make sure that the clutch is engaging on the compressor.Note: this is not the pulley, but the center piece that engages the pulley to the compressor shaft.If the clutch is engaging and disengaging rapidly, the refrigerant may be low.2. If the clutch is not engaging, use a voltmeter to check for voltage getting to the compressor.3. If there is voltage - the clutch may be bad.If there is no voltage - a cycling switch may be bad, a fuse may be blown and the system may not have enough refrigerant pressure to trip the low pressure cutoff switch that cycles the compressor.How do you test for an A/C system leak?One of the most common AC temperature problems is low refrigerant. The AC system is closed, so refrigerant should not be lost unless there is a leakDetecting leaks:Black light enabled dyes. You read that right. A lot of refrigerants are pre-mixed with a special U.V.dye that shows up under black light. We’ll run a black light over your A/C system to see if any dye shows up.Bring in the sniffer; A sniffer is a special device that hones in on the refrigerant’s chemical components. If there’s a leak, our sniffer will sniff it out. A damaged ignition coil could even cause an electrical short that can damage your Honda Civic's electrical system or blow a fuse.
How can a broken radiator fan on a car cause the air conditioning to stop working properly?
Yes, a broken radiator fan can cause the air conditiong to stop working. The AC system depends upon being able to dissipate heat into the engine coolant. A broken radiator fan will cause the operating temperature of the coolant to rise, there are temperature sensors in the engine that measure the temperature of the coolant, and if the temperature is too high the AC unit will turn off so as to prevent any more damage. You really need to have the fan replaced, or at least, have a diagnostic check to see what is causing the fan to stop working. I have had an experience where the fan fuse blew and the fan stopped. In my case replacement of the fuse was the only repair needed, it had blown when I had hit a pothole in the road, the vibration of the impact made the fuse open. I hope that your repair will be so simple and cheap.
My car air conditioner fan only works in high position,does not in low or medium position?
If cleaning the switch fails (when are cleaning it, spray the sliding circuits with silcon-lube, avail at any electronics shop) check the fan resistor. It's a switch doo-dad that runs directly off the motor housing. They tend to quit working in alot of Chryslers.
Does car air conditioner have anything to do with engine oil change?
I have 2004 Toyota Highlander v6 model. My wife usually drives this car and about 3 weeks ago, she told me the hot air would come out for a bit once in a while when she turns on the A/C. And sometimes the hot air comes out for very long. She knows her car well enough to know how to turn on A/C and set it so that cold air comes out, so it's not a user error. However, when I tried a few times, I didn't notice the problem. I did notice the warm air once when I tested but it was only for very short time. She also told me that she notices the problem more often when the car had been out in the sun for long that the car is hot. My engine oil changing date was bit passed (I change every 3000 miles, but it's gotten to 3500), so I changed it. Since then my wife hadn't noticed the warm air problem with A/C. And she's been using the car almost everyday for past 2 weeks now and during that time we even drove for about 2 hours straight and didn't notice the problem. So I actually have 2 questions. 1. Does the car's A/C have anything to do with engine oil change? 2. My guess something is starting to go bad with my A/C unit. Is it something that I can wait until the problem shows definitely or would it be better to take it to mechanic now when problem is mild and fix whatever is the issue (i.e. would it damage more and cost me more if I wait and fix it later?)
Does running the AC in your car use additional fuel?
Yes it does. (That’s your short answer, I love cars and engineering so the following is a nice long answer)A vehicles air conditioning system removes heat from air through a phase change. The entire system is sealed under vacuum, and in these conditions, the liquid coolant in the AC system will boil at a very low temperature. When the liquid boils it expands rapidly and pulls heat from the system.Experiment: place your hand in front of your mouth, open your mouth really wide and breath a heavy lung full of air into your hand. Notice how hot the air feels? Now make a very tight “o” with your lips and blow onto your hand, almost like you’re whistling. Try to breathe out at rate where the gust of air coming from your mouth is moving about the same speed as it was in the first part of the experiment so you can rule out velocity. Notice this is cool? The air is coming from your lungs both times so why does it behave in this way? The science is that when you leave your mouth open and puff the air out, it travels as one big mass carrying the heat of your body. When you make a small opening, the air comes out into the atmosphere and starts to spread out dissipating heat.Now back to your car. The AC uses an evaporator, a condenser, and a compressor. The evaporator is inside the cabin of the car, and it is where the liquid refrigerant becomes a gas before a fan inside your car blows the hot air through and removes heat making you feel cold air. The gas moves back through the system where it is brought back to a liquid phase in the condenser. In order to condense more easily, the gas is compressed by the compressor. Compressing this gas requires quite a bit of energy and this energy comes from a belt running off of an accessory pulley on your engine. When you turn in the AC, a compressor clutch engages the compressor to he engine and put an extra load on the engine. The engine must burn more gas to overcome this load and it is being less efficient. It also takes in slightly more load from the alternator to pull the current to run the blower fan motor in the dash board that the AC uses, but this loss is negligible in comparison to what the compressor needs.