Walbro pump failure

[LS-K]

Anyone ever experience a brand spankin' new Walbro pump just die out of no where?

I drove the truck from the muffler shop last Thursday just fine without a hitch and just yesterday I noticed my pump wasn't "priming" when I would turn the ignition switch forward.

Since last Thursday, I have only turned the truck on and ran the engine three times and it idled just fine. Just for info, the PCM was tuned with deleted VATS.

I went ahead and jumped the pump directly to the battery and still nothing, no priming, no pumping, no nothing. I'd like to see if anyone has seen this before I drop the tank this weekend.

thanks in advance