Question about 1997 Jeep Grand Cherokee

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Engine Back fired, blew out muffler.

Driving 45-50 mph engine missed fired about six times. Slowed down, added slight power, tremendous back fire explosion under floor boards. Blew the back panel out of the muffler. Engine computer is new, also plugs, wires and timing. past trouble caused replacements. Drove auto home about 10 miles with no further problems. Starts okay, shuts down okay, needs new muffler. What Happend?

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  • Anonymous Mar 26, 2014

    Back fires and no power






    Back fires about

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My check engine light not on but it runs like a misfiring

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Sounds like you may have gotten some debris in your exhaust pipe or something was clogging your muffler. Maybe the innerds of you Catalytic Coverter went and got stuck or the innerds of your muffler gave out. That would be the only few things I could think of to cause something like that.

Sincerely,

JC

Posted on Nov 16, 2008

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