Is the car coughing when it is moving or just a complete lack of power and cutting out? Warning lights on the dash?
I know that the diesel engines were updated for the Giulietta and Mito but I've seen a thread where users have described an issue with similar symptoms, which turned out to be a faulty crank sensor.
See thread: -
http://www.alfaowner.com/Forum/alfa-147-156-and-gt/300296-alfa-156-2-4-jtd-engine-cutting-out.html
This may not be the case but it is worth looking at. I hope he gets it sorted. :thumbs:
Hi ,it originasly occured in a trafic jam,and he was able to rev it up and crawl home, since then, it will only start up and then stop as i said even if you continue to turn the engine over,I called RAC home start, the guy was nice enough, he used his diagnostic analiser, but for some reason Mito would not let him in,we went through all the fuel system and we decided it must be the injection pump pressure regulater, as he claimed on the new common rail diesels,the presure from the pump is very high and when we opend the feed pipe nut, all we got was the sort of tricle of fuel you get from the old type injection pumps, so muggins here contacted the nearest dealer and paid £200.00+ quid for a new pump pressure senser, guess what?, yep it made no difference what ever, My opinion of RAC is not what it was, I am reading about this crank senser now, but I do not wish to waste any more money untill I know for shore it is going to do the Job, why would a crank senser allow it to start and then stop? I need real answeres please some one.
Hi I need some answeres to a problem with my mates Mito Jtd diesel, He just managed to crawl home with a total loss of power, it seemed like a lack of fuel problem, it starts up then stops ,I checked fuel from the tank by releasing the bleed nut on the filter, this confirmed that the fuel was getting that far, I have fitted a new filter but the problem remains, fuel is getting to the injection pump and to the injectors but it just starts up and then stops, and dose not run even if the engine is still being cranked, can some one give me an idea as to how and why this is as it is my job to fix it for him, I would appreciate any help,as it sounds like an engine management problem to me but in my experience it is usualy a senser that is to blame. 
