I have a 2004 XT3 D-4D, which has been a great wee car, but recently has caused me a few problems. I'm driving along, and all of a sudden it dies on me - doesn't cut out, just no power, even though the rev counter is going up, the speedo is going down. It went on the computer and as a result had a new EGR valve fitted. All was rosy for a month or so, but it's doing it again. When it dies I have to either stop and turn the engine off for a couple of minutes, or drive at slow speed until it does a sudden leap and catches up with itself. I can't tow the horse trailer at all, and think twice before pulling out of a junction or passing anything, as the problem is intermittent and doesn't give a warning. Also, not sure if it's connected, but I've noticed a "puh, puh, puh" noise coming from under the bonnet when I stop the car - also intermittent. Hope someone knows what I'm talking about - I just get blank looks from the menfolk around here! Thanks for reading (and hopefully replying??) Fiona