1992 300 TE

Car will not start when it is not driven for a few days.
Here's what happens:
-battery will crank engine but engine will not start.
-no fuel when I check spark plugs
-no fuel when I crack gas line going to fuel distributor.
**wait a few hours maybe 2 hours, go out car will starat no problem.

What might be going on, anyone have this happen?

Only thing I could think of is fuel pump and check valve attache thereto.

I do hear the pump making sound for a few seconds when I turn key but not all the way.