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

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

RepairPal Verified
Average mileage: 85,200 (16,000–211,000)
Exhaust & Emissions affected: 7.5L V8
8 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997
13 people reported this problem
4 people shared problem details
1993 Ford F-35049,000
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.
1990 Ford F-35040,000
after driving for a while when turned off very hard to restart
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
1992 Ford F-350110,000
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.
Related Items:
I just drove 300 miles with my truck 150 of which were towing a trailer. The truck did great no...
Truck jut got out of a transmission rebuild and engines was runnin great before and now overhea...
1990 Ford F350 w/ 460 Fuel injected engine. after driving a bit when weather is hot it drops a...
shakes badly at 40 miles per hour, if i speed up or slow down it stops, all the time

Related Content