2003 Cadillac Deville O3 Dhs Running Ruogh Codes One Misfirer On Number Three

2003 CADILLAC DEVILLE
88,000 MILES
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my o3 dhs is running ruogh it has codes one misfirer on number three cylinder.and crankshaft sencer.i had it tuned up with new plugs but still running ruogh.what should i do next
Jan 18, 2013 at 7:01 AM
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RASMATAZ
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Go and review this link for more information: http://www.2carpros.com/articles/engine-misfires-or-runs-rough
Jan 18, 2013 at 8:34 AM
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