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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...