Pontiac Repair: air conditioning, c valve, pontiac grand am

Question
Where is the low pressure a/c valve on a 1997 Pontiac Grand Am GT. it is a 4 cylinder

Answer
Hi
I am figuring you mean the Low side charge port?
If so it is on the low side tube down REAL low right next to the compressor.
If you mean the low side pressure switch, according to the schematice, this vehicle is not equipped with one, just a refrigerant prerssure transducer, located on the high side.
I hope this helps.
Good Luck
Pawl