95 lumina a/c low pressure switch location. no dryer found by firewall , no black connector. where do i look n

Question

i have followed the ac lines too the firewall . only switch found so far is the 3 prong high pressure switch

Answer 1

if i remember right, the accumulator is under the battery tray, pretty hard to get to.  There were some GM's at the time that used an expansion valve, so there was no usual low pressure switch.