2005 Chevy express Fuel pump relay meltdown 6.0L

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.

2000 Chevrolet Express Cargo fuel pump relay location Bing images

fuel pump fuse fuel pump relay ignition switch

check to see if the fuel pump is getting power to it. if not it may be the fuel pump relay or fuse.

sounds like the check valve in fuel pump is allowing fuel to drain back out of lines. this would require ystem to prime up each time it is cranked. check fuel pressure it should hold with key off if it leaks down this is problem and pump will need to be replaced

Did you bench bleed the master cyl prior to installing it?

are the glow plugs workin ok--fuel injection pump maybe failin-truck is 10yrs--chec over work for any mishaps--get motor scanned

The fuel filter is located under the van on the driverside mid way down toward middle of the van in front of the fuel tank,

Check/ replace your sparkplug and coil high tension leads.