Chevrolet Repair: 1990 chevy lumina apv tbi 4.3 l firing order, chevy lumina apv, 1990 chevy lumina

Question
i need to know th firing order. cylinder positions and distributor positions my van has mixed up plug wires and runs wierd wont even idle

Answer
Hi Steve ... order is 165432. on transverse engine standing on passanger side looking at engine # 1 cyl would be first one on your right toward front of truck. that bank would be 135 inside bank towards firewall would be 246 wires are installed clock wise in the cap starting at roughly the 5 oclock point. in that order #1 then #6 Then #5 and so on. hope this helps