1997 Jeep Grand Cherokee Would Cause Straight 6 Engine Backfire Approximately 3

1997 JEEP GRAND CHEROKEE
308 MILES
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What would cause a straight 6 engine to backfire approximately 3 times in the last six months. Each time it blows the muffler apart at the seam leaving the muffler useless.
Jan 4, 2013 at 3:20 PM
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HMAC300
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a misfire or maybe lean condition. scan for codes and check fuel pressure.
Jan 4, 2013 at 3:59 PM
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