Hi DIY, upon cranking the engine over the fuel bowl does fill up so does that rule out the need to try putting more fuel in the tank as a test? It's nearly full anyways, and yes there is only 1 tank on the truck.
Any suggestions on how I can test the fuel pressure gauge to know if it's definitely working or not? Is there a method for testing the Schrader valve another way to see if fuel is available there?
In terms of the banjo bolt on the pump, does that have to be removed before removal of the pump from the block?
Also do you know anything about the functionality of the pump itself? It appears there is an intake from the fuel tank, then another line to the middle of the fuel bowl, and then a third line going to the bottom of the fuel bowl, does anyone know what the functions of the 3 different lines are?
Thanks so much for your time!