dunno about deisels, there should be a primer pump, it'll probably look like one of them old foot pumps in caravan to pump the water, pump this and it should bring the fuel through, some cars have an auto bleed, usually newer cars, just turn ignition on till lights come on dash, you would hear the pump if you have this function, another method is to fill the deisel fuel filter with deisel and this should give enough fuel to start the engine and drag fuel up. also trying to start with accelerator half way down works on some cars.