A/C Clutch not engaging
Check your A/C clutch cycling switch (also reffered to as a low-pressure switch. When there is low pressure in the A/C system this switch is activated and does not allow the compressor to turn on and burn up. This switch is located on the A/C accumulator by the firewall and screws in to the canister. Also consider these other possibilities: You have a dead A/C compressor or possibly a leak thats allowing the freon to escape. Have the system tested for leaks before recharging (that is, if you have no pressure in the system). Even with low pressure, if you look at your a/c compressor with the engine running and a/c on, you should see the front of your compressor cycle on and off about every 3-4 seconds for low pressure.
