2.5 di more likely fuel run on valve.try disconnecting spade tag from switch usually found on diesel pump.escorts were famous for this about £14 odds for switch.van in gear foot on the brake and clutch up to stall it.
henry ford, September 2006
More details on what van and engine you have would help.
MrMPuk, August 2006
Sounds like a ingnition switch problem that is located on lower steering colum ...if its a deisel it be the shut down solenoid on injection pump
