Zetec 1.8 16v non starter

[karlosullivan]

My GF's 1.8 16v Zetec escort broke down and now won't start at all. It will turn over, but not start, and on the rare occasion that I had to drive it, it was slow, much slower than it should have been anyway!

I was told it could have been a fueling problem (the fuel module). But a mobile mechanic who is usually pretty good said he suspects its the head gasket, as he got it started for a few minutes then it overheaded.

If anyone has got any ideas what it could be and what to try first that would be much appreciated, many thanks in advance!

Also posted in Engine forum, but though you guys might also be able to help.