I've got a 2004 focus Tdci 100 which I'm having trouble with.its started cutting out on me and the glow plug light starts flashing.the diagnostic machine says there's a problem with the fuel pressure.i wondered if anyone knew anything about this?

 

Which fuel pressure? Low pressure from the tank feeding the high pressure pump or is it the high pressure? Do you have the number of the fault code?

 

All it was saying was low pressure and sometimes when your driving it hesitates slightly.