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Plugs and wires changed. Misses, idles rough. When accelerating and on inclines barely pulls. Exhaust is terrible. Straightens and smooths out at 15-20 mph.
Tags: 1500, 1997, 4.3, chevy, rough, runs
Latest activity: 1 year, 11 month(s) ago. This question has been viewed 158 times and has 0 answers.