Here we go again.
It's 4½ years since I last went through this performance. Warning light on, usually at around 70 when engine warm -> limp mode key off and back on -> running normal only to repeat a few miles later. Injectors and pump serviced that time.
I strongly suspect the same thing this time around as those injectors have done 60k which seems to be the life-span of the Delphi injector.
I cannot remember the codes from last time but pretty certain they were as now ie: P0251 and P1211.
My next step is a leak-off test. Just to confirm my suspicion and ascertain whether it's all 4 injectors. Should it be only one (ha! I should be so lucky!) then I might just replace that unit.
So... Here's question 1/. Is there any mechanical - ie engine damage - reason why all 4 have to be replaced - at around £120 for a serviced unit £480 is not a sum I have handy at the moment.
Question 2/. do I need to worry about the pump? As I say above; it has done 60K (miles!) since last overhauled. (OK answer does partly depend on quality of the fuel I have put through the engine).
Question 3/. Who is the man of the hour for replacement Delphi's? Many fingers point to Dieselboy. From what I can make out all those fingers are on hands with thumbs pointing up but I also notice he appears not to have frequented these here pages since march this year.
Question 4/. Not entirely related to this topic. Can someone please confirm the recommended cambelt interval on this engine. I recall phoning Ford technical some time back and being told 160K - True/False
Thank you