have a 1.6 zetec escort, L reg.
most of the time it runs great but occassionally, usually about 10 mins into a journey, it starts to "splutter". When i accelerate it drives then stops firing then fires for a few seconds then stops for a few seconds etc. if i put my foot on the clutch when it is going through a bad spell it will rev up perfectly but when i try and drive again its back to kangarooing down the road.
some days it doesn't play up at all, other days only does it for a few seconds. my gf has had it happen so bad when she was driving it that it actually stopped completely twice, restarted immediately.
very intermittent.