Car Problem Reports

Ford F-350 Catalytic converters may go bad and plug exhaust

Ford F-350 Problem
13 Reports
Me Too

Model Years Affected: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997

Exhaust & Emissions Affected: 7.5L V8

Average Mileage: 85,200 mi (16,000 mi - 211,000 mi)


Catalytic converters can go bad and potentially plug the exhaust, hurting engine efficiency and performance.

  • Visitor, , 40,000 mi

    after driving for a while when turned off very hard to restart

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  • cms1123, , 211,000 mi

    When i hit the gas it sounds like a engine knock really noticeable in 3rd to 5th gear smell of exhaust is strong in the cab and has no power

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  • Visitor, , 49,000 mi

    Bogged down. overheating. very poor performance. Eventually could only get up to 5 miles per hour. disconnected catalytic converter. problem went away. Replaced catalytic converter. works great now.

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  • Visitor, , 110,000 mi

    Cat plugged. Engine died and would not run. Loosened the exhaust to drive to muffler shop. New cat cost an arm and leg because it is a special one. Haven't had the problem since.

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