Mechanics

I HAVE AN 04 THATS MISS FIRING IVE CHANGED ALL 6 COILS AND PLUGS CLEANED THE THROTTLE BODY WHAT ELSE COULD IT BE?

2004 Chevrolet Trailblazer • 145,000 miles

Had bad coil which I had to drive on for a while but since then ive changed all 6 with new plugs and cleaned the throttle body what else could cause this? Its 50 times better than it was with the bad packs n plugs but still misses slightly
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Boomasjboomas
December 1, 2011.




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