Auto Air Conditioning & Heater Repair: Auto Air Conditioning, auto air conditioning, chevy venture

Question
97 Chevy Venture. A/C blows warm air.  Where exactly is the Low pressure port.  Will I need to 'force' the compressor on if the system is indeed empty of refrigerant?  Also R-134a, right?
Thanks

Answer
Hi SGT Andrew

R-134 is the refrigerant.  Follow the thick hose that comes out of the compressor towards the evaporator you will find the accumulator you should be able to connect there.  If accumulator has been replace and you do not have it there then keep following that hose and you will find the other suction port.  Good luck.