Fuel filter and now it cranks and no fire ??
Did you put back all the o-rings from old filter into new when reassemble ??
Find your old filter and look in the holes for o-ring still stuck inside,,, makes for fuel leak that wont make pressure to charge the line.
Trans, been a few engine & trans programs through the yrs for various 2.7 issues... are you up to date ?
Buying parts for concerns you read on the web... how about scan the thing and see if you have any DTC that might steer you in right direction before dropping cash on a wild guess and compounding problems more than what you started with..