unscrew the old one, then screw the new one in..?
ignition switch
Very carefully and with a turkey baster.
Change CHT sensor=Cylinder Heat Termo switch
The way you change the serpentine belt is be decreasing the pressure on the tensioners. There are key pressure points you should press to release the belt.
Release the steering column upper shroud from the lower shroud by inserting a thin screwdriver into holes on each side of the column. Lift the upper shroud from the column and unclip it from the bottom of the instrument panel. Depress the plastic tab at the top of the switch with a screwdriver. Lift the switch assembly from the steering column, and disconnect the switch multi-plug on removal.
The flasherunit is an integral part of the Hazard warning switch change this switch and the problem will be solved, Fords about £16.00.
NEED MORE INFO. Have you tried relieving the pressure on the ignition switch by turning the steering wheel slightly to relieve the pressure against the lock mechanism? Did it used to work but doesn't work now? Are you using the same key as before? If using a different key, is this one equipped with the security chip (located in the fat plastic part of the key)? If not, the car's security system is working and has disabled the ignition just like it's supposed to.
Ford focus with 2.0 eng.zetec
Mecron ATF is used for the Ford Focus.
In the steering column.
Program a new key and ignition to a 2000 ford focus
According to the 2003 Ford Focus Owner Guide : ( Motorcraft MERCON automatic transmission fluid is used as the power steering fluid )