How do you bleed a diesel pump for vauxhall astra?

To bleed a diesel pump on a Vauxhall Astra, first ensure the fuel tank has sufficient diesel. Locate the bleed screw on the fuel pump, usually near the fuel filter. Using a wrench, loosen the bleed screw slightly and turn the ignition key to the "on" position without starting the engine, allowing the fuel to flow and air to escape. Once you see a steady stream of fuel without bubbles, tighten the bleed screw and attempt to start the engine.