If you have noticed that the air conditioning in your 2001 Jeep isn’t as powerful as it used to be, the problem may be that the air conditioning unit is low on freon. If you have determined that the compressor still works, it may be time to add freon to the air conditioning unit. This is a relatively simple task that most Jeep owners can handle without the help of a service professional. The task usually takes about 20 minutes to complete.
Open the hood and locate the air conditioning unit. The unit is located near the windshield, on the left side of the vehicle. It is comprised of an accumulator, a compressor and a condenser.
Locate the low side service fitting on the hose between the accumulator and the compressor. If in doubt, compare it to the high side service fitting on the hose between the compressor and the condenser: The low side fitting has a smaller diameter.