Stalling issues

[Adonitambakis17]

Hey guys. I have a 2005 sierra 4wd with 5.3. I’m having issues where my truck will randomly stall while driving or just sometimes won’t start. When it happens I don’t hear a fuel pump kick on at all. I have replaced relays and even changed the fuel pump. I cleaned the fuel pump ground as well. Anyone have ideas Im getting stumped 

[Jworks]

Just a guess on my part -- it could be a stopped up fuel filter.

[dna9656]

Jworks, in my 06 Avalanche the pump featured an integrated filter so if this is the same (chances are it is) the problem isn't likely to be a filter issue but crap might have made it through a corroded (due to alcohol in the gas?) filter and now the crap is in the fuel lines/injectors or the fuel pressure regulator?