xbox360 wrote:it had only done 20 miles when it started doing it.Its now got about 2000 miles on it
Mine has covered nearly 6k miles now so mine must be alright.

Have you had a look on the dash clocks to see if they can give you a diagnostic trouble code?
If you don't know how to do it, switch off the ignition and press down and hold the trip reset button. Start the van and wait until the display says "GAGE". You can let go then (all the dash gauges will flick over to full deflection and back). You can then scroll through various live data (including actual vehicle speed, fuel level, coolant temp to mention a few) by pressing the trip button repeatedly until the screen displays DTC. this will then show up as "NONE" or give you a code if there is a stored fault. Leave it on this screen and drive it a little to see what happens.