Show me how to remove and replace a Ignition Lock Cylinder for a 2000 chevy malibu.

worn key or tumblers

Remove covers and there should be a little pin you push in which allows the barrel and keys to come out.( use a piece of wire to hold the pin in).

1. Close the vehicle doors.
2. Turn OFF the ignition.
3. Remove the key from the ignition.
4. Press and hold the driver side door lock switch to UNLOCK position.
5. Insert the ignition key into the ignition lock cylinder and remove the key. (Do not turn the ignition key in the lock cylinder.)
6. Insert the ignition key into the ignition lock cylinder and remove the key. (Do not turn the ignition key in the lock cylinder.)
7. Insert the ignition key into the ignition lock cylinder. (Do not turn the ignition key in the lock cylinder.) Leave the ignition key in the ignition lock cylinder.
8. Release the door lock switch. The vehicle will sound three beeps in order to verify the Program Mode has been activated.
9. Press the LOCK and UNLOCK buttons together on the keyless entry transmitter and hold until the vehicle beeps twice to verify that the transmitter has been successfully programmed (this take approximately 15 seconds).
10. Perform the previous step to program up to four transmitters (including your old ones). 11. Remove the ignition key in order to exit the Program Mode.

The problem is going to be the ignition switch/lock cylinder that needs to be replaced. After you replace the switch you may need to do the passlock procedure which you can just google it. Hope that helps:)

Inspect the old ignition cycle which is out.Is there any problem noticed of Ignition cylinder getting worn out.
Because when issue of ignition not turning off,its faulty ignition lock cylinder or faulty ignition switch.I suggest re-inspect the new ignition cylinder.
For more help,click the help link mentioned below:----

Ignition Switch Will Not Turn Off?
http://schematicsdiagram.blogspot.in/2012/04/ignition-switch-will-not-turn-off.html
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1995 Ford Taurus: Ignition switch not turning OFF?

http://repairhelpcenter.blogspot.in/2012/06/1995-ford-taurus-ignition-switch-not.html

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Ignition Problem Troubleshooting

http://whoisbyme.blogspot.in/2012/07/ignition-problem-troubleshooting.html

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These will help.

Thanks.

is the car fully in park if it is then u may have a prob with the park lock. In normal operation the key wont turn off all the way if it is not in park check to see if the censor is working or engaging. If all is working correctly then it might be that the tumblers in the ignition lock cylinder are the problem

the lock or key cylinder needs replaced. the ignition switch is on back side of lock cylinder. if in doubt about changeing lock cylinder. go to any auto parts store and buy a haynes manual for your vehicle, they are based on a complete tear down of vehicle. and are only about 20.00, good luck carl,

1. Close the vehicle doors.

2. Turn ignition to the ON position then OFF.

3. Remove key from the ignition.

4. Press and hold the driver side door lock switch in the UNLOCK position
until step 8.

5. Insert the ignition key into the ignition lock cylinder and remove the key.
(Do not turn the ignition key in the lock cylinder)

6. Insert the ignition key into the ignition lock cylinder and remove the key.
(Do not turn the ignition key in the lock cylinder)

7. Insert the ignition key into the ignition lock cylinder.
(Do not turn the ignition key in the lock cylinder)
Leave key in the ignition cylinder.

8. Release the door lock switch. The vehicle will sound three beeps in order
to verify the Program Mode has been activated.

9. Press the LOCK and UNLOCK buttons together on the keyless remote and
hold unitl the vehicle beeps twice to verify that the keyless remote has been
successfully programmed. This may take approximately 15 seconds.

10. Perform the previous step (9) to program up to four keyless remotesm, including
any old ones.

11. Remove the ignition key to exit Program Mode.

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PROGRAMMING
Method One
Sit in driver's seat
Close all doors
Press and HOLD UNLOCK button on door lock switch.
Insert and remove ignition key twice. Do NOT turn ignition switch
Insert ignition key a third time and leave it in the ignition switch. Do NOT turn ignition switch
Release door lock switch.
A chime will sound three times indicating remote programming active
Press and HOLD the LOCK and UNLOCK buttons on each remote for 5 seconds
A chime will sound twice for each remote: indicating successful programming
Remove the key from the ignition switch to exit programming
Method Two
Remotes can be programmed using diagnostic equipment.

On this car there is a cable that is tied into the shifter, so you have to turn the keep to be able to take it out of gear. Its all in 1 big housing. Usually to remove the ignition cylinder it has to be in the run position and you push a little key down to remove it. Since your key won't turn you have to figure out a way to do it.However once you replace the ignition cylinder your shifter will move and you will be able to start the car. To get to the ignition switch/cylinder you have to remove the molding around the instrument panel and then the instrument cluster. Then you can unbolt the assembly in the front with a 10mm socket. lift the assembly up and now you have access to change it out. Hope this helps.