Question about 1994 Chevrolet Lumina APV

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Ignition lock cylinder jammed up

How do I remove the ignition lock assembly??
I believe one of the tumblers fell out.
I can fix it if I can just figure out how to remove the whole thing so I can get it apart in my shop.

Posted by Wayne Dahl on


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When you have pulled the steering wheel of you'll see three hex screws the on on the right thats silver and just above that one you should see another hex smaller and dark in color that hex screw holds the lock in place.

Posted on Nov 07, 2008


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Ignition key cylinder tumblers are worn out!
Time to replace the cylinder.
Help prevent this from happening again by lightening your key ring load. A heavy key ring puts constant pressure on the lock tumblers and wears them down to eventually deform and prevent the tumbler cylinder from turning.
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I have done lots of these because the key is hard to turn and you must "WIGGLE AND SHAKE" to get your car started. If this is the problem you are experiencing, then:

Yes, you can replace just the ignition lock cylinder. I recommend using the AC Delco lock cylinder kits. (AC Delco Part Number D1493F) They come with packages of numbered tumblers (which must be assembled) so the new cylinder can be configured to accept your existing Ignition key.

If you replace the entire ignition switch/lock cylinder assembly, your computer will have to be reprogrammed so your engine will start and run. (Not to mention, this is the expensive way to do it.)

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Below are instructions for changing the lock cylinder as well as a few diagrams. Best of luck.
  1. Disconnect the negative battery cable.
  2. Remove the lock cylinder bezel from the steering column shroud by carefully prying with a thin bladed screwdriver.
  3. Remove the shroud fasteners and remove the steering column upper and lower shroud panels.
  4. Insert the key into the ignition lock cylinder and rotate to the RUN position. Then rotate the ignition cylinder back to the ACC position.
  5. Depress the locking button on the side of ignition module assembly with a thin pick-type tool. Slide the lock cylinder assembly from the ignition module.

3321ca5.gif5b3b81a.gif INSTALLATION:
  1. Insert the key into the ignition lock cylinder and install into the ignition module.
  2. Install the steering column upper and lower shroud panels and the shroud fasteners.
  3. Install the lock cylinder bezel.

Reconnect the negative battery cable.

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