Hi,I have a deisel r reg 1.7d vauxhall combo epic van,it won,t start and the fuel filter bowl is empty,and it won,t fill while cranking the engine.Does the van have a cut off switch,if so how do you re-activate it,or does the van have a primary fuel filter near the fuel tank itself,.If neither,can someone point me in the right direction as to probable cause,.thanx alot,angus