Mechanics

MODELS MISSFIRE

2002 Oldsmobile Other

Engine Mechanical problem
2002 Other Oldsmobile Models 6 cyl All Wheel Drive Automatic 79000 miles

I have a 2002 bravada 6 cylinder. It is running rough as in missfireing. Changed spark plugs and plug boots. Hasn't helped. What is my next step?
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Rlloyd
June 6, 2009.




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