Engine does not start immediately when cranking

Question edited for clarity.
Question moved to model category.

Did you disconnect the battery recently before this happened? Is the anti theft light flashing?

https://www.google.com/search?q=1999+Ford+Crown+Victoria.+Cranks%2C+no+start

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stop trying to start up your car, it will create more damage to your engine. water may have seeped into the combustion area or may have rusted your internal engine (crank shaft) due to prolonged exposure to water.If the water damage occurred recently , bring in your car to the nearest service center, have engine checked for damage and an immediate engine oil change, this will resolve the problem.

Tighten torque convertor to flywheel?

Sounds like low fuel pressure or a clogged filter.

To clarify - the engine cranks but won't start, or the engine does not crank ?
What have you checked so far ?

on all cars bring piston to top dead center on the #1 piston... install distributor with rotor cap pointing 2 the number one position on the cap , install wires turn car on and take a timing light (must have tool) and use as per direction, set timing by turning the distributor till it reaches the right number or tab see front of motor crank pulley and tab on block. if you have a crank trigger the timing will be factory set and if u install new distributor , it will set automatically. if this is to confusing u need to see a mechanic .sorry

does it have a clutch fan??? sound like its going bad

I would visually check for spark at the plugs, to make sure spark is getting to the plugs. If spark everywhere, use a gage and check proper fuel pressure and fuel injector pulse.
How long since a tune-up? Any applicable trouble codes?

Try this site
http://www.eautorepair.net/

Check the starter solenoid. Usually mounted on a fender well. Find by following the + battery cable.