I would suggest turning the engine over by hand if you haven't already.And I always test starters out of the car before trading the old one,or installing the new one.You'r old starter may not have been bad.Since the new one is already in,and if you can turn the engine by hand.I would suggest manually jumping the new starter to make sure it's not defective.Over the years I've come across a few new and rebuilt starters and alternators that didn't work.If the engine turns,and the starter works when you jump it,you've got a bad relay,wire connection,or ignition switch.Sorry I can't be of more help then this.