2000 Silverado 2500hd 4x4 stalling

[cheyenne402]

Just had a wierd situation yesterday when I went to drive my truck. I got to the end of my road to pull out on the highway, and my truck just started to barely run. It eventually stalled after little to no response from the gas peddle. I drove this truck all last weekend. It sat until yesterday. I recently had the throttle body cleaned. I replaced the fuel filter today. I replaced the plugs a couple years ago. I have yet to put new wires or a new fuel pump on it.

Could it be the fuel pump? It will start, but then stall. No codes. Help! This truck has been reliable up until yesterday.