What is the best way to remove a fuel tank from a 2000 chevy express 3/4 ton

Overheating fuel pump or ignition module?

Here is a post that answers both questions.

http://www.fixya.com/cars/t13493096-remove_2001_chevy_van_fuel_tank

2 of them........First Fuel Filter

One fuel filter is in the fuel pump of the Express Chevy 3500, which is used to push fuel or gasoline through the fuel line. The fuel pump is inside the gas tank. This fuel filter is a mesh or screen that prevents large foreign particles for entering the fuel pump. Access to the fuel filter is obtained by removing the fuel tank and then the fuel pump from the fuel tank.

Second Fuel Filter Location

The second fuel filter is within the fuel line itself. After the fuel pumps extracts fuel from the gasoline tank and into the fuel line, fuel flows through the line and through another filter on the driver's side of the Express Chevy 3500 under the front wheel suspension. This fuel filter cleans the small particles that escaped from the fuel tank.

Fuel Filter Types

The year of your Chevy Express 3500 determines what type of fuel filter is installed on the van. The fuel tank filter is always mesh or screen, but the fuel line filter can be of three different types. Two types are snap-on filters, while one type has clip-on ends.

Sounds like a fuel pump..I believe it is located in the gas tank,,,not hard to replace if you have good mechanical skills and some time!

There is not really a fuel pressure sensor. There is a fuel pressure regulator. The fuel pump pumps up pressure and the pressure regulator allows the fuel to return to the fuel tank if the pressure reaches 37psi in the 4.6 liter. It is located on the intake manifold. It is round about 3 inches in diameter, and has a fuel line on both sides of it.

Start with fuel system. Listen for fuel pump humm at fuel tank No humm check wiring to pump for power. Then check for spark at plugs and wires. Remove wire from coil and hold near engine and see arch when you crank. No arch. Replace ignition Modular inside distributor cap or cap or rotor

Is the Service Engine Soon Light on?

The pump is mounted inside the tank, you will either have to remove the tank or check to see if there is an access plate on the rear floor of the van above the fuel tank.
On those models the pump and sender unit are all in one. Check on Rockauto dot com for a price, their prices are generally very good.

lOOK UNDER THE REAR OF THE VEHICLE ABOVE THE SPARE TIRE ON A CROSSMEMBER BETWEEN THE FRAME RAILS.

Some fuel tanks have a drain **** that will allow you to drain all of the gas neatly. If you have a drain ****, it will be located at the lowest point on the tank. Loosen the valve and allow the gas to completely drain.
If your tank has no drain ****, you'll have to drain it by removing one of the fuel lines. The rubber hose that exits the tank at its lowest point will drain the tank fully. It will either be connected to an electric fuel pump, fuel filter, or to a hard fuel line that goes to the front of the car. Loosen the clamp on the end of the line that connects to the gas tank. Pull the hose off and allow the gas to run out of the tank into your container until it is drained completely.