misfire cylinder 1

2004 CHEVROLET MONTE CARLO
160,000 MILES
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CHEVYFREAKAZOID
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car runs rough at idle,hesitates or accelerates rough, smells of rotten eggs and code scanner says misfire cylinder 1. Replaced coil pack and spark plugs.PSI gauge fluctuates and check engine light comes on steady at idle but flashes when driving down the road
Apr 21, 2013 at 8:49 PM
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