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There is no Air compressor on you Mustang. If you mean the Air Conditioner compressor, the answer is yes. There is s fuse for the A/C compressor.
check all A/C electrical connections, like the connector at the compressor.. make sure the compressor is trying to engage, should be an audible click when switched on, check fuses, also check pressure switch on coolant line.. it has a electrical connector on it also, and if coolant is low it will not let the compressor engage.
A bad thermostat can cause overheating in a Nissan Frontier when the air conditioning is turned on. A bad compressor can also cause this.
There could be several reasons that could be the cause of your problem. But more than likely the compressor is not working or you have lost all of your coolant. If it's a window AC then get a new one, if it's a Central HVAC then find a good HVAC Tech to check your compressor and Coolant Levels.
You may need to recharge your a/c compressor with coolant.
A bad compressor belt can cause a whistling noise while running the air conditioner. A bad engine can also cause this noise.
Refrigerant floodback could cause it from being over charged. Other things that could cause it are a lack of lubrication from an oil leak, contamination, electrical problems, or overheating from low or no coolant.
It compressed the refrigerant. It may also have an air compressor if the vehicle has an air ride system.
For vehicles which are intended to have an air system (e.g., Class 7/8 trucks with air brake systems), those use a gear driven air compressor which is mounted on a plate attached to the engine block. Yes, coolant goes into those. For aftermarket add-on ones, which are typically belt or chain driven, no.
It can take between 20 and 40 horsepower to turn the compressor that is the heart of an auto air conditioning. When you turn it on you cause the compressor to engage with it's belt and start compressing coolant. No matter how big of an engine you have you will always notice losing 20 to 40 horses.
If it is too low on coolant the ac compressor will not engage. It is a safety feature to keep from burning it up. Try to add freon and as the pressure builds the compressor should kick on. If you are sure you have adequate coolant; it could be anything from electrical to a frozen compressor.
AC Compressor