Hi Bob,
I wouldn't take the fuel pump being quiet as a sign of anything being wrong. If the line stays pressurized, the pump won't come on, or sometimes it doesn't vibrate as much. I put a pressure gauge on the fuel rail to check the fuel pump pressure. I bled the line, and then jumped the fuel pump relay at the RCM - never heard the pump go on, but the pressure in the rail shot up to 60 psi and stayed there.
-Jerry