Call any parts store and they can quote you a price.
http://www.ehow.com/how_4509339_replace-ignition-coil-pack-ford.html
Ford uses a distributorless ignition system or D.I.S. It does not have a distributor. it has a coil pack.
it depends what year of ford focus.up to 2oo4 there is one unit with two coils. each coil is for two cylinders. for 2005 each cylinder has a coil placed above each cylinder.
opposite end of the spark plug wire from the spark plugs
Bad coil, a new one fixed my 2004 2.0
Actually , there isn't a distributor , it has a Coil On Plug ( C.O.P. ) ignition system
Alternator
how much horse power does a 2003 ford focus ZX3 have
The Ford Focus RS would be much much faster than the Hyundai i30.
Check the crankshaft sensor and ignition coil on the Focus. It appears that one of these may be failing as it heats up.
How much does labor cost to replace a shift solenoid in a ford focus?
To replace a coil pack on a 2002 Ford Focus, first ensure the engine is off and cool, then disconnect the negative battery terminal. Remove the engine cover if necessary, and locate the coil pack on top of the engine. Unplug the electrical connector from the coil pack, unscrew the mounting bolts, and then carefully pull the old coil pack out. Install the new coil pack by reversing the steps: secure it with bolts, reconnect the electrical connector, and finally reattach the battery terminal.