Question about 1993 Buick Regal

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How to change a tumbler we changed the ignition cilinder and it will turn but only in the direction of acc and not start position. is there a pin or something we are not seeing

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  • Buick Master
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Ignition lock cylinder removal


how to change a tumbler - 4adb8e2.gif
WARNING On vehicles with air bags, disable the SIR system. The vehicles wheels must be in the straight ahead position and the key must be in the LOCK position when removing or installing the steering column. Failure to do so may cause the SIR coil assembly to become uncentered and may result in otherwise unneeded SIR repairs.


  1. Disconnect the negative battery cable.
  2. If equipped, properly disable the SIR system, as outlined in Section 6 of this manual.
  3. Remove the left side lower trim panel.
  4. Remove the steering column-to-support screws and lower the steering column.
  5. Unplug the dimmer switch and turn signal switch connectors.
  6. Remove the wiring harness-to-firewall nuts.
  7. Remove the steering column-to-steering gear bolt and remove the steering column from the vehicle.
  8. Remove the combination switch.
  9. Place the lock cylinder in the RUN position.
  10. Remove the steering shaft assembly and turn signal switch housing as an assembly.
  11. Using the terminal remover tool No. J 35689A or equivalent, label and unplug the wires F and G on the connector at the buzzer switch assembly from the turn signal switch electrical harness connector.
  12. With the lock cylinder in the RUN position, remove the buzzer switch.
  13. Place the lock cylinder in the ACCESSORY position, remove the lock cylinder retaining screw, and remove the lock cylinder.
  14. Remove the dimmer switch nut/bolt, the dimmer switch, and the actuator rod.
  15. Remove the dimmer switch mounting stud (the mounting nut was attached to it).
  16. Remove the ignition switch-to-steering column screws and the ignition switch.
  17. Remove the lockbolt screws and the lockbolt.
  18. Remove the switch actuator rack and ignition switch.
  19. Remove the steering shaft lock and spring.
To install:
  1. To install the lockbolt, lubricate it with lithium grease and install the lockbolt, spring and retaining plate.
  2. Lubricate the teeth on the switch actuator rack, install the rack and the ignition switch through the opening in the steering bolt until it rests on the retaining plate.
  3. Install the steering column lock cylinder set by holding the barrel of the lock cylinder, inserting the key and turning the key to the ACCESSORY position.
  4. Install the lock set in the steering column while holding the rack against the lockplate.
  5. Install the lock retaining screw. Insert the key in the lock cylinder and turn the lock cylinder to the START position and the rack will extend.
  6. Center the slotted holes on the ignition switch mounting plate and install the ignition switch mounting screw and nut.
  7. Install the dimmer switch and actuator rod into the center slot on the switch mounting plate.
  8. Install the buzzer switch and turn the lock cylinder to the RUN position. Push the switch in until it is bottomed out with the plastic tab that covers the lock retaining screw.
  9. Install the steering shaft and turn signal housing as an assembly.
  10. Install the turn signal switch. Install the steering wheel to the column, and tighten the steering shaft nut to 30 ft. lbs. (41 Nm).
  11. Install the steering column in the vehicle. Connect all electrical leads. Install the lower trim panels.
  12. Connect the negative battery cable.
  13. If equipped, properly enable the SIR system, as outlined in Section 6 of this manual.
  14. Check steering column operations.

Posted on May 09, 2010

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1 Answer

(1996 ford crown victoria Lx) after turning ignition key to off position car will not shut off; must remove fuel injection fuse and disconnect battery for car to shut off.


It sounds like you need a new Ignition switch. There are a few tricks to changing them, but it is not too hard. You need to remove the plastic cover on the steering column. There is a hole below the Ignition switch that has a spring loaded pin which releases the tumbler.

You will need to disconnect the battery a few times to rotate the key through its Interlock features and be able to remove the Tumbler which can only be released in the RUN or ACC positions. You do not want the battery connected after the key is turned.

The plastic cover can get in the way and often the Tilt wheel may need to be moved to get clearance to remove the switch. Some switches have special heads on the screws which are called Security screws.

The switch is not too expensive and is available at most autoparts stores. You may also find tooling to remove the Security screws at an autoparts store too. The job should take no longer than 1 1/2 hours if even that long, more like 1 hour for most people.

This should solve your problem.

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ok some where on the tumbler there will be a very small pin hole you will have to put the key in turn it forward one click then take something that will fit in the pin hole and push in and pull out on the key this should remove the tumbler then follow the directions on the new tumbler to put it in

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The problem may be the security issue. Do you see a security light? Dust gets into the ignition tumbler and causes a bad contact with the sensor prompting a false security issue.

I had the same problem and thought it was a fuel pump issue, but after a $500 replacement ordeal, I later encountered the same issue again.

To resolve:
Insert the key and turn on ignition tumbler to ACC on (Position prior to engaging the starter)
Wait around ~15-20 minutes (The security light will change... I believe it will flash when the security reset...it's been a long time...sorry)
Afterward, turn the ignition tumbler and off
Your card should start there after

Tumbler maintain: Blow some compress air to prevent this incident from happening.

Hopefully this will resolve your issue without the need of spending any further $$$!

Dave

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your expericne is correct your igniton tumbler is failing

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hello,insert your key,turn on acc.put 2 pcs of pin,you notice the 2 hole in front of your ignition key,pull the key and tumbler,ty

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