just sold a mondeo tdci on a 03 plate to my uncle, (big mistake) he had it 2 weeks now it wont start. only way to get it going is to spray easy start down intake. soon as u switch off wont start again. changed crankshaft sensor , injector rail& sensor , pump sensors , fuel filter , been told to check timing chain hasn jumped a tooth or 2.?? once started with easy start , seems to tickover for ever, but take it 4 a run & it will just cut out??. n e suggestions? running out a ideas. help!!