Originally Posted by thatranger
To me it sounds like one of the two things, fuel pump or a fuel injector.
Edit: When my alternator went bad it never idled rough. However my dad's 2.5 idled rough sometimes when it had a bad injector.
i dunno, just something that happened to me.
It was starting to go bad, then finally died, during the starting to go bad process it idled weird.