Is there an access panel to the fuel pump in my 2004 crown vic intercepter?

Yes
1st pull tire from pass rear. 2 tie exhaust to pass side to help clear fuel pump access cover. 3 remove fuel lines loosen passenger tank strap and gain extra wire length . 4 remove access cover 8 mm bolts and work module out of tank. 5 replace pump assembly and 6 replace parts as removed.

check your crankshaft position sensor. fuel+spark+compression+timing=ignition.

Have a repair shop check for failed fuel pump

first check the fuse and relay for fuel pump. heres how to check the pump. get under car and put hand on bottom of fuel tank, then have a person turn key to on . if pump is ok. you will feel a vibration in tank. you may have to do this a few times because a fuel pump only runs a few seconds to get fuel pressure to engine then shuts off. but when vehicle is running its on all the time to supply fuel to engine.

ouch, have power supply tested for proper voltage to pump,also have ground checked. i believe pump is overheating causing failure, Possible causes, 1) insufficiant voltage 2) bad ground causing power surges 3) Inproper ventalation of fuel tank 4) dry run pump (no fuel) 5) faulty pump relays
I hope this gives some insight but we just don't know untill tests have been made

COP-Coil #3

Yes

I ~think~ the 1999 is the same as the 2000 (mine is a 2000 P71)

The 2000 CVPI (Crown Vic Police Interceptor) owners manual recommends the following:

Engine Oil - Motorcraft SAE 5W-30 Super Premium Motor Oil 5.0 quarts

Transmission Fluid - Motorcraft Mercon V ATF 13.9 quarts (fluids Mercon & Mercon V are NOT INTERCHANGEABLE, DO NOT MIX)

Fuel Tank - 19.0 gallons

Break Fluid - DOT 3


Rear Axle Lubricant - Motorcraft 80W-90 Premium Rear Axle Lubricant 3.75 pints (add 4 oz of Additive Friction Modifier C8AZ-19B546-A or equilavent meeting Ford Spec. EST-M2C118-A for complete refill of Traction-Lok Rear Axles)

Engine Data - 4.6L V8 Engine
Cubic Inches - 281
Required Fuel - 87 Octane
Firing Order - 1-3-7-2-6-5-4-8
Spark Plug Gap - 1.3-1.4 mm (0.052-0.056 inch)
Ignition System - Coil On Plug
Compression Ratio - 10.0:1

I hope this helps!

the fuel pump is defective, there is a Ford service bulletin on this problem, there is a new pump available.

where is the fuel pump relay on a 2001 crown vic p71