had the same problem,car was running fine then while on highway,engine
,trouble lights came on and engine killed,upon not starting  again,had car
towed to my garage,tried to turn over ,but engine would give a little tug
like something stuck in way,it seemed like power to starter but something
was preventing flywheel from turning more then an inch or so,turned out that
the  timing chain has snapped and piled down at the bottom of the timing
chain housing jamming the bottom sprocket. good luck

When I turn the ignition it seems like something is jamming to keep the car
from starting.  It sounds like the starter but I had it checked and it is
okay.  I know the problem is in the area of the starter, but don't know
where to try next.  The batter is fine, but something is keeping the car
from turning over.  It's almost like something is stuck in the way...????