engine is back firing

2000 BUICK CENTURY
85,000 MILES • 3.1L • V6 • 2WD • AUTOMATIC
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CCAB
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What is the firing order for my car?
Jan 28, 2016 at 10:59 AM
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HMAC300
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what engine?
Jan 28, 2016 at 11:55 AM
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WRENCHTECH
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http://i1198.photobucket.com/albums/aa448/Wrenchtech/84817708.jpg.gif https://www.2carpros.com/images/external/148709066.jpg_1.gif
Jan 28, 2016 at 11:56 AM
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CCAB
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3.1 on the buick century custom.
Jan 28, 2016 at 12:06 PM
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HMAC300
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looks like wrenchtech got it for ya
Jan 28, 2016 at 12:18 PM