I have a '94 Ram 2500 4x4 truck with a utility bed and pipe rack. Ever since I got it, I've felt like it didn't have enough power. I've never had a Dodge 360 before, but even at a rating of 230 horsepower in an 8800 GVWR truck, I thought it should have a little more juice. Just recently, it began getting worse. I had personally replaced the muffler and a lot of exhaust pipe, so I didn't think that was the problem. Then I began hearing a loud hissing and realized that it was coming from the cat. Pulled out the O2 sensor and stuck a coat hanger wire in there, and could feel things clunking around.
When I did the exhaust, I welded most of it, but up toward the front, I used a clamp where it would have been impossible to weld. Fortunately I was able to get it loose and pull the pipe right behind the cat off. I looked in with a flashlight and saw large chunks of the catalyst inside; for some reason it had broken into pieces. As I was driving, these pieces would move around, and I would get more or less restriction.
I was able to ram a metal stake into these chunks and break them up small enough to blow out by running the engine. Now I have the kind of power I expected, in fact, I have to watch my speed on the freeway, which was not a problem before.
I obviously have to replace the cat, any recommendations on a CARB-approved item? Magnaflow makes one, would that be good?
When I did the exhaust, I welded most of it, but up toward the front, I used a clamp where it would have been impossible to weld. Fortunately I was able to get it loose and pull the pipe right behind the cat off. I looked in with a flashlight and saw large chunks of the catalyst inside; for some reason it had broken into pieces. As I was driving, these pieces would move around, and I would get more or less restriction.
I was able to ram a metal stake into these chunks and break them up small enough to blow out by running the engine. Now I have the kind of power I expected, in fact, I have to watch my speed on the freeway, which was not a problem before.
I obviously have to replace the cat, any recommendations on a CARB-approved item? Magnaflow makes one, would that be good?