Catalytic Converter or water damage?
Last night I have a long roadtrip and it was raining pretty hard. I hit a few decent size puddles but nothing close to what its gone through before.
Well today on my way to school the truck started to shake. I thought it was the rear end but even when I stopped it was shaking. It only happens after I drive for about 10 minutes, then it starts. When I got home it smelled like rotten eggs coming out of the exhaust and the exhaust make a "plut plut plut" sound when going up a hill. So does this mean a bad cat or just from the rain/ puddles from the night before and just wait to see if it goes away? Could be something else but that's what came up the most after searching.