Either you badly need a refrigerant recharge, or your AC compressor is shot. Or both.
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Check freon level first
Why not just pop the hood on a 2002 Liberty and take a look see?
probably air in the system have you replaced the rad or hoses?
The first thing to check is the radiator fan.
An air conditioner blows out heat
Portable air conditioner will not blow cold air. What to do?
it could possibly be in the fuse compartment located on the drivers side under the hood.
run as fast as you can cause it is going to blow up in 5 minutes
On a 2003 Jeep Liberty, the air conditioner compressor relay is located in the Power Distribution Center (PDC), which is typically found under the hood near the battery. To access it, remove the cover of the PDC, and you will find the relay labeled for the air conditioning system. If you need to replace it, refer to the diagram on the underside of the PDC cover for proper identification.
Failed blower resistor. It is located under the dash on the passenger side.
wipers,headlights,speedometer,door locks,air conditioner,electric mirrors, stopped working