There is no need to bleed air from a fuel pump.
Injectors will self bleed when vehicle is "cranking" provided system is working normaly. The pressure regulator will bypass all extra fuel and return to the fuel tank providing constant fuel supply to injector.
To bleed a Case 1594 injector pump, first, ensure the fuel tank is filled with clean diesel fuel. Next, locate the bleed screw on the injector pump, typically found on the top or side. Loosen the bleed screw slightly and manually pump the fuel lift pump until fuel starts to flow without air bubbles, then tighten the screw. Finally, crank the engine to ensure it starts smoothly and check for any leaks around the bleed screw.
Fuel leak, or Fuel Injector stuck partially open.
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you open all the injector lines at the injectors . Then pump the fuel pump primer on the fuel pump . fuel will flow out one or more of the injector line , close the injector line and roll the engine over until the next injector start to flow fuel and so on , why are you having problems
Pop the bleeder and cycle the pump until only pure fuel is coming out.
Bad oxygen sensor, fuel injector bleed, timing off.
To bleed a Fiat Multipla diesel, start by ensuring the fuel tank has adequate fuel. Locate the fuel filter and loosen its bleed screw while cranking the engine to allow air to escape until fuel flows steadily without bubbles. Tighten the bleed screw, then start the engine. If necessary, repeat the process at the injector lines by loosening the nuts and cranking the engine until fuel is present.
you will have to open a injector on the engine to let the fuel bleed make sure all air is out the system
I undo the diesel filter and fill with diesel to the top, and refit, Then slacken off the fuel injector supply pipes on the injector end, Crank over engine until fuel appears to leak down injector connection, tighten injector fuel connections and then continue to crank over engine. Should then start to fire up. Keep cranking till engine running on its own.
Loosen the injector lines at the injectors not the pump then crank the engine till there is fuel at the injectors then retighten the lines.