Hi: I have a 2000 F150 with a 4.6 motor. The ac clutch is making noises. If I replace the ac compressor myself, but have someone else evacuate the system and recharge it. Do I need to replace the orifice tube an drier at the same time. The compressor still works so the system was not contaminated. Thanks Tom

 

Yes, and you should also flush the system Harbor Freight has a vacume pump to vacume out the system for $25 or so.

 

Autozone has a pump they can loan you that is better and it is free.