A coworker brought me his 04 silverado with the complaint of no power and a trouble code, which he said was from bad o2 sensors. I borrowed a motis and he got new 02's swapped them out, I changed the o2's and cleared the codes for emissions and now I have a miss fire on cyl 4 and 6. I've replaced plugs, swapped coils, tested the map, maf, iac, checked injectors and intake for leaks. The only test I have yet to do is a compression test. The truck still idles rough and falls on its face under any type of a load. Is there anything that I missed or overlooked. Thanks
May 6, 2013 at 9:01 AM
