2002 L200 w/83K mi. A/C was cold one day - hot the next day. Saturn says\n"must be the compressor" after diagnosing the problem; estimate-0! Took\nit home, hooked up the pressure gauges and a can of R134. 100 lbs on both\nsides; wouldn't suck in the refrigerant. Compressor runs continuous,\nblower blows hot air full blast (automatic climate control), engine\ncooling fan doesn't run. I'm A/C illiterate. Can something be blocking the\nrefrigerant path?