Wife has a 2003 Liberty. Had a new engine put in it a year ago. Timing chain tensor was never right and always made noise. Just quit on her a few months ago so I assumed that's what the issue was. Put a new chain set in and still won't start. Hits every once in a while but won't start. Turns over fine and tore engine apart and timing is set perfect. New camshaft sensor already to. Crankshaft sensor? Any help very appreciated.