1991F-150 300 6

hi my truck runs rally rugh and some times runs great when you are driving down the road it will lose its power out of noware and will barley move then all of the sudden it will run great agian i was wondering if this is becase of a cloged catalic converter

ford fan

I would try to pull some codes, to me it sounds like fuel starvation.

steve341

Will you gain power, completely removing this catalic converter? Mine is bad and expensive

1991F-150 300 6

hi i have a friend that has the same truck and motor and year his was doing this and he completly eliminated the cat and it ran great so im thinkin this is my problem because i ran a full tank of 4 year old gas and ive herd that cloges them

Hooptie82

Over a clogged one? Yes you'll gain power. Over a functioning converter? No, not thats worth noting.

Go look at Magnaflows universal converters. If you have the 2x2.25" in and 1x2.5" out y pipe converter, its part number 94007