A//c blows hard , it is not very cold 97 volvo wagon - how many cans of freons do you put in , and what kind
SOURCE: AC is not blowing cold air. How do I add freon?
What you will be looking for (in your engine compartment) looks almost like a large valve stem that you would see on a tire. It will probably have some kind of plastic cap on it.
It shouldn't be that difficult to find. You may want to search for an engine compartment diagram for your make/model/year vehicle.
SOURCE: my 99 ford f-150 blows only hot air.
The A/C system has a pressure switch will keep the A/C from running if the freon is low. It prevents damage to the A/C compressor from low freon.
My bet is you'll need to recharge the A/C system.
SOURCE: Air conditioning does not blow cold air all the time
your high pressure switch is faulty. the part is about 50$
SOURCE: Air conditioner does not blow cold air
all cars of that year use r-134 refrigerant. Follow the ac lines till you run across the service port. The one near the evaporator (front of engine) is the high side; leave that one alone. It usually is marked with a red cap
the low side port is near the firewall, and usualy has a blue cap. The valve for a refill can usuallly will only fit on a low side. When filling the can will get very cold very fast. If the can doesnt start to get cold immediately, remove it you have it on the wrong side. Make sure to remove it immediately, as keeping it on the high side will pump liquid freon into the can causing it to explode.
SOURCE: Air conditioner works then stops blowing cold air
when you day the air goes on and off i assume you mean the compressor goes on and off. that is what moves th freon through the system. if you are getting cold air when the compressor is running then the problem is that the compressor is stopping and that would be because a pressure switch may be bad. it is possible that model has a thermal shut down too say if the compressor was low on lubricant and was overheating when it does run. but if it is a pressure switch that is failing and they do, it is an easy fix. if you follow the ac lines you will find the switch.it is small about the size of a sparkplug-attached to the ac line and will have a connector with two wires. if the car is running and ac is on but the compressor is not turning remove the connector and jump to two wires. the compressor will start running if the switch was bad and we are sure there is a good charge on the system. if you are getting cold air there should be a sufficient charge to close the switch. these switches can be removed without losing any freon. there is a valve below them that will shut off when the switch is removed. then all you have to do is get a new one and screw it into place,apply the connector and you are done. if that is the problem. hope this helps please let me know and good luck
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