Harryh24

iTrader: (1)

went to look at a fiesta 1.4 16v today no spark on 3 so changed the coil pack for a new one ran fine for 2 mins then lost spark on cylinder 1 and 4 , so fitted the old one back on and the same no spark cylinder 3.
I'm guessing faulty coil pack?

RichieST

iTrader: (2)

Sounds like it, change the plugs too. If the electrode is damaged causing too much resistance through the plug, then it will burn out the coil pack in no time.