K got a 99 gtp. Ive got the ac fully charged to specs. Compressor will come on but no lines in the engine compartment get cold. so i changed the orfice tube and drier. i charged the system once again and the same thing is still happening. any suggestions? Maybe a faulty compressor? it engages but weird because no lines get cold when the freon should be circulating. its almost like something is clogged or the compressor isnt pumping.