Prepping for a pending exhaust change and the O2 sensor in the (so called) resonator pipe will have to come out. By the look of it removal is only possible with the resonator removed but I can't see where to disconnect the wiring. O2 sensors I've dealt with previously had a 6'' pigtail but the truck one seems not to. How do I disconnect it?
1999 C2500 5.7 Suburban.
1999 C2500 5.7 Suburban.