No fuel!

[oregonian2]

Made a quick stop after driving a few miles only to discover that my normally reliable 1970 280SL refused to start up again. The usual checks revealed that the problem was no fuel reaching the engine, but why? I recently replaced the fuel line at the pump, and a thousand miles before that work on the head led to new injectors. Everything was running extremely well!
Perhaps predictably, after a tow to the garage and an overnight sit, the car started right up again, but it would be nice to know what caused the problem. Fuel lines and filter are clean. Fuel tank was replaced not so very long ago. A new fuel pump was installed in 2001, which was only 25,000 miles ago. Circuits and fuse are ok, rate of flow ok, no excessive amps drawn. Reading the wave form at the pump did show a slight flat spot in the armature. Is it possible this caused a failure to engage when the pump stopped at just the wrong spot? Other ideas?
I’d be grateful for any and all suggestions. I want to get my confidence back!

[ja17]

Check the electrical fuse and it's contacts first. Next remove the intake fitting of the electric fuel pump. It has a filter screen built into it. It is small and is the first filtering device to get clogged. After sitting the dirt will fall off the screen and the car will start and run again for a while.

[Cees Klumper]

My fuel pump was replaced with a new one back in 2000. Then I believe around 2016 I had to buy a new one again. The metal impeller had started to disintegrate. I had covered about 50,000 miles in that time. So don't be surprised if your pump has given up the ghost.

[oregonian2]

Thanks. Now I can go back to the garage with a plan.