Is this a DIY job?? Or how much will a main dealer charge for it? I really do need to get a Haynes manual.:o

I'm having similar problems. Bought a 2004 Mondeo 2.0 (115hp) TDCi on Tuesday night from auction. Thought I'd got a bargin! Have done about 80 miles in the last two days. Yesterday I twice lost power doing about 30mph around town and glow plug lamp flashed but car did not cut out. I pulled over, stopped and restarted the engine immediately and everything was OK. Today I was accelerating between 70 and 80 while overtaking on the motorway when I lost power and lamp started flashing, as I pulled over to the central hard sholder the engine stalled totally. Again I was able to immediately restart the engine and continue without any problems. One post suggested I try reving the engine - I can hold the car reving at any rpm up to the red line for ages and it doesn't jump about or hunt up and down. Looking at previous posts it looks like this could cost me anything from £15 to £2000! As it came from auction with no service history I suspect it will be the higher of these two figures! Local (expensive) Ford dealer said it sounds like something to do with the fuel system and are taking it in on Monday. Is there any point in me replacing the Cam Sensor myself this weekend? One thing I do notice however is that it is rough when it just ticks over at 750 rpm. I get a bit of 'shudder' and hunting up and down the revs and it feels like the engine is about to stall, if I bring the rpm up to about 850 - 900 it ticks over nicely and there is no shudder. Would this have anything to do with the shudder and hunting at idle speed or is this totally unrelated to the glow plug flashing and loss of power?