frostbite
New Member
Hello all, I am new to this forum and I come with a question. I have an 04 Sierra with the 5.3 and I have had issues with this misfire ever since I bought it, it has no misfires what so ever on the 2nd bank (2,4,6,8) but every cylinder in bank 1 (1,3,5,7) has a misfire present. cylinders 1 and 2 are the worst, 3 and 4 are minimum but still there. When I first purchased the truck it had a poor idle so I did a tune up (plugs and wires) with no fix so I swapped known working coils from a parts 5.3 I had sitting around and the issue still persists. The only code is for engine misfire so I don't have a lot to go on. I am hoping this is a common issue or atleast something that another member has encountered and has a solution.
Thanks ahead of time for all of your responses
Thanks ahead of time for all of your responses