Engine running rough

In message , mbna snipped-for-privacy@hotmail.com writes

Coil pack.

Thanks Paul. Not doubting you, but I would think that if the coil pack failed that the engine wouldn't run at all.

Finn

European cars with the Zetec engine have a coil pack that consists of two coils. Cylinders 1 and 4 fire together, as do cylinders 2 and 3. The plugs fire once per revolution on each cylinder. Every other one of the firings is not needed, hence the system's name of "wasted spark".

Coil pack failure is common; it is often the cause of intermittent misfires on all Zetecs.

Things may be different your side of the pond!

Chris

Thanks. It does appear the coil is the issue. Difficulty in changing? Any directions, tools needed, etc is appreciated.

Finn

Nope, straightforward. (On European cars at least.)

Make certain you know where each HT lead goes; disconnect them, the coil wiring plug and the suppressor. Undo the three Torx screws and remove.

Chris

You guys rock! Put the new coil in at lunch and she runs like a Swiss watch. Thanks everyone.

Finn