2001 Buick Regal Backfire

2001 BUICK REGAL
160,000 MILES • 3.8L • 6 CYL • AUTOMATIC
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RUDY26A
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I have a buick and piston 3 is backfiring, what can be the cause of this? My check engine light is on too I've done just about what I can but it won't stay off. What can you suggest? Is it a easy fix or no?
Oct 14, 2014 at 6:49 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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