Hi there,
I have recently been having some trouble with my 2002 defender td5. The trouble started when i went to start it and it wouldn't fire, just lots of whining from the fuel pump. So i replaced the fuel pump (gave up trying to remove the tank so cut floor) and filter but the whining is still there. It now runs after many cranks but i have got white / grey smoke at idle and black smoke under load, where as it never used to smoke at all before this problem occurred. Now from searching i have read that the injector seals + washers could be my next step but there is one thing i can't understand. Why or how is air getting into the fuel system without the engine running if the injector seals + washers are at fault? Is air getting sucked past the seals and into the fuel system or something?
Many Thanks
Adam
