60,reg Engine Problems

[Jameswill36]

Hi,I am new to this,I have a 2010 reg smax zetec diesel,has anyone had or no of a problem with the engines on this modal of smax,as I am having an intermittent problem with mine, it's been back to fords,4 times and all they say is it needed a software update,what happens is I can be driving it,and it loses power,the main engine fan comes on even if I have only been driving it for 10 minutes,the engine note changes,I can hear the exhaust poping,and it puffs White smoke out the back of it,but of course whenever it dose this fords have closed or it's a Sunday,and with it only doing it intermittently,they say they can't do anything,is anyone having the same problem,

[Lee churchyard]

Not being funny but fords are the best place they have all the right tools for the job but it does sound like its going into limp mode