hi, i have a problem with my mk6 transit
it is a 2004 swb fwd, 2.0 85ps TDDi engine with 109000 miles
it has got an ongoing problem with cutting out, i bought it last aug off a guy i do work for, before i bought it it cut out on him on the motorway last summer and it got recovered and it showed some fault codes (sorry i dont know what they were) they pointed to the crank sensor, the van would start back up but would cut out again if it was on the motorway etc,
so it went to the garage and they fitted a new crank sensor and checked all the wiring in that area, they also fitted a new fuel filter as this was suggested it could be a possible cause with airlocing the fuel, it was ok for a month or so this is when i bought it.
the day i got it i did a 40mile journey and about 30mile into the journey the van cut out while i was driving at 70mph, the glowplug light started flashing which i understand is also the engine management light, i pulled over and started it back up, it started fine and i finished my journey, the next day i drove the van back home with no problems at all.
i looked on here and the net as to possible causes and i thought it may be the accelerator pedal, so i got another and fitted it, all was ok for a few more weeks until i was drove to a quick job then when i got back in the van it started ok but when i tried to drive off it cut out, started back up then cut out when i tried to drive off, after a couple of minutes it was fine
i decided to fit a new genuine ford crank sensor incase the garage had fitted a dud
so i put a new one in and when i removed the old sensor it had a coating of oil on it, so there must be some kind of leak on the crank seal no? the new one went it and all was fine again for a while and i thought i had cracked it but on a motorway journey again it cut out and i pulled it a service station, this time it would start but then cut out straight away, i sat there a while and it wasnt wanting to get going so i decided to take the crank sensor out and see if it was covered in oil.
it did have oil on it so i wiped it and put it back in, it started fine and off i went.
so i came to the conclusion that when i traveled at speed for a period of time the leaking oil would cover the senser and make it miss read the signals, before any long journeys i would pop the sensor out give it a wipe and try to keep under 70mph until i got the leak sorted, after a month or so i got bored of wiping the sensor but i didnt have anymore trouble,
it was last oct when it last cut out and its been fine all winter, until the other day, i was going down the motorway to view a new van and it did the same, i turned it off while still moving and started it back up, i looked at the new van then got back in mine and it wouldnt start, i wiped the sensor, it had oil on it and off i went but on the motorway it conked out again, i managed to pull over but when i took the sensor out it didnt have any oil on it at all, i put it back in but the van would start up and tick over but would cut out on acceleration, then wouldnt start at all after a few mins
so i got it recovered and when we got home the van drove off the lorry fine
so it must have something to do with the hot weather because it was hot last year when it was doing it and its been hot this week, is there something obvious that it could be that im missing? ive not taken it to a garage or plugged it in as i have always fixed my own vehicles and the last time it went in the codes said crank sensor
sorry to dribble on but ive tried to include as much info as poss and need an expert opinion, the ive not been on the road in the van since getting it recovered as i bought the new one but it starts and drives fine
i need to fix it so i can sell it
thanks for taking the time to read