I am chiming in on this discussion mostly because of one reason - I never hear/heard my fuel pump running - Maybe my ears are finally dulling out with the years of loud guitar playing, but for the life of me, and even my daughter, we couldn't hear that familiar "whine" as I've heard in other vehicles. We even stuck our ears down to the pump top and couldn't hear it. - If you are accustomed to hearing it and it is no longer making noise as it used to, then the probability of a dead pump is higher. However, if you've never heard it, I wouldn't necessarily think it wasn't working. I would get a fuel pressure test kit and test at the pump level -
I had a similar issue a couple of weeks ago. Took the family to church, then after church the disco ran for a couple minutes and died in the parking lot.
So I got her home, got the fuel pressure test kit, and connected her up. Pressure was pressent at the fuel pump, but not at the rail - Turn out it was the "fuel filter" - I pulled the old filter and sure enough, I couldn't even blow air through it.
How to change Disco Fuel Filter
Just a thought on the possible direction you might take in troubleshooting the issue.
In Peace and Agape,