Chevy express wont start

Overheating fuel pump or ignition module?

If the pick-up filter is located at the front of the tank and the tank is almost empty the pump would starve for fuel.
murf427

The Automatic Shut Down (ASD) relay is in the fuse box next to the battery in the engine compartment.

Hope this helps!

A new fuel pump can go bad but you need to know if the fuel rail has pressure or fuel in it the next day. Take something and press on the shradder valve on th fuel rail and see if you have any fuel. If not the fuel pump may be installed wrong.The fuel rail should have some pressure all the time for quick start up. I do not know if this helps but it is a start.

the fuel pump operates off the oil pressure switch the first 5 seconds upon starting. to test turn the key to the on position and listen for the fuel pump running. it does this to prime the pressure up and to stat the engine
if not heard replace the oil switch. the way this operates is when the engine reaches full oil pressure the computer shuts off the oil switch and turns on the fuel pump relay to continued the circuit to the pump

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?

check electric fuel pump operation ( located in the fuel tank ). Occasionally a fuel pump will burn out when running out of fuel, due to the fact the pump runs DRY for about 30 seconds till the fuel stops flowing out of the injectors, the engine quits, simultainously losing oil pressure which FINALLY shuts off the fuel pump. Sometimes TOO LATE. Hope this helps

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

Have you checked the fuel filter? Have you changed it EVER?