2003 Pontiac Grand Prix Q&A

2003 Pontiac Grand Prix Question: My grand prix gt won't start. Any ideas on what it could be?

I have replaced the battery and cleaned the connections. I also replaced the ignition switch and alternator and the just recently the starter and it still wont start. -
Answer 1
does it turn over? if so check for spark and fuel pressure -
Answer 2
Will engine turn at all,is it locked up? Try it with drive belt removed may have a componet seized! -