Recently my ford fiesta freestlye has been stuttering and missing a lot when I am at low revs. At first it was an occassional thing but it is starting to happen a lot more frequently now. I decided to clear my spark plugs and HT leads, then clean my air filter to see if that was the problem. But the same problem is still occuring. I was told by someone it may have something to do with my fuel filter but I can seem to find it on my engine. Can anyone confirm that this information about the fuel filter is correct? and where I can possibly find the fuel filter on a Ford Fiesta Freestyle with a 16V zetec engine.