I found a spot in the wiring along the frame that had been burned by the exhaust, just under the drivers side door. I cut all 4 wires and separated them and then put a fuse in the slot and turned on the parking lights… the fuse didn’t blow, so I was 90% sure I had found the problem. I spliced the wires back together after removing a 4” piece and tried the parking lights again… The fuse burned immediately, so today will begin a new search. On the bright side, I know the problem is in the back part of the Blazer. I wasn’t looking forward to trying to figure out the problem with all the “spaghetti” in the engine bay.
