No Pressure at Fuel Rail-Fuel Pump Works (or does it)

[80stech]

The pump only runs for a few seconds when the key is first turned on. You need to check your fuel pressure gauge and connection to the rail.

[Explorerlyon]

Originally Posted by 80stech

The pump only runs for a few seconds when the key is first turned on. You need to check your fuel pressure gauge and connection to the rail.

When I turn the key, no fuel pumps out. I only get fuel out of the pump with the engine started. I disconnected the vehicle fuel line from the top of the pump and connected a test line to determine when fuel flows.

I have tried two different pressure gauges at the fuel rail, both show zero. With the engine running, I pressed in the Schrader valve, fuel flowed out with very minimal pressure. Did the same with the key on and a dribble comes out.