Ford Focus Estate - engine system fault - kindykate

i purchased the focus about three weeks ago after my fiesta was stolen. It appeared fine, payed a fair price and have driven about 450 miles in it already. The car was serviced last week and all appeared great, however, tonight it broke down saying 'engine system fault'. We had to call green flag but when they ran a diagnostic it did not show a code. the bloke said it might be one of the pumps???? Any thoughts on problem and also do I need to take it to a Ford garage to get it sorted or will anywhere do?? AAAGGGH!

Comments gratefully received.

Ford Focus Estate - engine system fault - kindykate

forgot to say that in the service we had a new oil, air and fuel filter.

Ford Focus Estate - engine system fault - Peter.N.

If it has an 'in tank' fuel pump that might be the first place to look.