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I have a 2003 Chev 6.0 that has a dead miss occasionally, then none and then a lot. I have installed new harness, plugs, fuel filter and two ignition coils. I have not had ream job on injectors but have been running Lucas injector cleaner in every tank. The engine has 102,000 miles on it and does not use oil. Anybody know maybe my problem.
Try a new ground wire to the bat. We had an intermit. miss we couldn't find. Replaced the ground and it went away. I cut the old cable molded end open and the cable was corroded inside the end.