The ignition switch will not move, - Cars & Trucks

this is covered in the FSM. best is to ask a lock smith, (no kidding)
it is also cover at all 3 top online fsm sites (vitrual fsm)
at alldata.com
mitchells.
and chiltions online.

the tumbler just dont fall out, it has protections from thieves (weak)
most cars, you must remove the key assembly
the pull the tumble pin, hidden and blocked by the mounted assembly.
those are generic words.
the steps can vary if car has steering wheel, vert adjustment option.
here is a non Air bag quote

Without Air Bag The ignition switch is located on the lower part of the steering column.

1. Place the ignition in the LOCK position.

Ignition/dimmer switch assembly

1. Remove any components necessary to access the switch.
2. Remove the two switch mounting screws.
3. Disconnect the switch from the rod.
4. Disconnect the wiring and remove the switch.

To install:

1. On non-tilt columns:
   1. Move the ignition switch slider to the OFF unlocked position (move the slider all the way down, then back two clicks). The remote rod hole in the ignition switch slider should now be centered.
   2. Insert the remote rod in the ignition switch slider hole and install the ignition switch on the steering column. Tighten the attaching screws to 35 inch lbs. (4 Nm).
2. On tilt columns:
   1. Insert the ignition key in the lock cylinder and turn the cylinder to the OFF unlocked position.
   2. Move the ignition switch downward to eliminate any slack and tighten the attaching screws to 35 inch lbs. (4 Nm).
3. Install any components removed for switch access.

SOUND LIKE IGNITION SWITCH KEYLOCK CYLINDER BROKEN. IN WHICH YOU CANT GET CAR OUT OF PARK.THE KEY LOCK CYLINDER BY TURNING THE KEY.IT MOVES A GEAR AND RACK ASSEMBLY THAT IN TURN MOVES THE IGNITION SWITCH ACTUATOR ROD AND PLUNGER TO VARIOUS POSITIONS REQUIRED FOR PERFORMING IGNITION SWITCH FUNCTIONS. IF KEYLOCK BROKEN YOU WONT BEABLE TO TURN IGNITION KEY OR GET CAR OUT OF PARK.

Ignition Switch REMOVAL & INSTALLATION 1982–91 Vehicles The switch is located on the steering column and is completely inaccessible without first lowering the steering column. The switch is actuated by a rod and rack assembly. A gear on the end of the lock cylinder engages the toothed upper end of the rod.

1. Lower the steering column; be sure to properly support it.
2. Put the switch in the OFF-UNLOCKED position. With the cylinder removed, the rod is in OFF-UNLOCKED position when it is in the next to the uppermost detent.
3. Unfasten the two switch screws and remove the switch assembly. Fig. 1: Removal and installation of the ignition switch and related steering column components — 1990 vehicle shown
   Fig. 2: Exploded view of a steering column including the ignition switch — 1990 vehicle with standard column shown
   Fig. 3: Exploded view of the steering column including the ignition switch — 1990 vehicle with tilt column shown
   To install:
   
4. Before installing, move the new switch slider (standard columns with automatic transaxle) to the extreme left position. Move the switch slider (standard columns with manual transaxle) to the extreme left position. Move the slider (adjustable columns with automatic transaxle) to the extreme right position and then move the slider one detent to the left (off lock). Move the slider (adjustable columns with manual transaxle) to the extreme right position.
5. Install the activating rod into the switch and assemble the switch on the column. Tighten the mounting screws. Use only the specified screws, since overlength screws could impair the collapsibility of the column.
6. Reinstall the steering column.

It's the dimmer switch....follow below:

Without Air Bag The ignition switch is located on the lower part of the steering column.

1. Place the ignition in the LOCK position
   

Ignition/dimmer switch assembly

1. Remove any components necessary to access the switch.
   
2. Remove the two switch mounting screws.
   
3. Disconnect the switch from the rod.
   
4. Disconnect the wiring and remove the switch.
   

To install:



Ignition switch rod positioning

1. On non-tilt columns:
   
   1. Move the ignition switch slider to the OFF unlocked position (move the slider all the way down, then back two clicks). The remote rod hole in the ignition switch slider should now be centered.
      
   2. Insert the remote rod in the ignition switch slider hole and install the ignition switch on the steering column. Tighten the attaching screws to 35 inch lbs. (4 Nm).
      
2. On tilt columns:
   
   1. Insert the ignition key in the lock cylinder and turn the cylinder to the OFF unlocked position.
      
   2. Move the ignition switch downward to eliminate any slack and tighten the attaching screws to 35 inch lbs. (4 Nm).
      
3. Install any components removed for switch access.
   

defective ignition switch tumbler

If it moves freely with no spring resistance then the pin extension on the ignition barrel that turns the ignition switch is most likely broken and the barrel and key will have to be replaced. If there is spring resistance and the ignition lights come on when you switch on the ignition but it does not crank then it will be the ignition switch that is faulty and this will have to be replaced.

disconnect negative battery cable.place the ignition lock in the off lock position. remove the 2 switch mounting screws.disconnect the switch from the rod.disconnect the wiring and remove the switch.TO INSTALL.ignition switch installation for non tilt columns.move the the ignition switch slider to the off unlocked position move the slider all the way down.then back 2 clicks.the remote rod hole in the ignition switch slider should now be centered.insert the remote rod in the ignition switch slider hole and install the ignition switch on the steering column.tighten the attaching screws to 35 inch lbs.ignition switch installation for tilt columns.insert the ignition key in the lock cylinder and turn the cylinder to the off unlock position.move the ignition switch downward to eliminate any slack and tighten the attaching screws to 35 inch lbs.

the ignition switch is located under the dash at the bottom of the steering column.suspect a fault in the linkage connecting tumbler to switch.

See Figure 1


Fig. Fig. 1: Ignition switch assembly
If equipped with an air bag system, make certain to follow the recommended disarming procedure before, and rearming procedure after, repairs.

1. Disconnect the negative battery cable and disable the air bag system, if equipped.
2. Remove the column to instrument panel trim plates and attaching nuts.
3. Lower the steering column and disconnect the shift indicator cable.
4. Disconnect the ignition and dimmer switch wire connectors.

The steering column must be supported at all times to prevent damage.

1. Remove the switch attaching screws and remove the dimmer switch followed by the ignition switch.

To install:

1. Move the key lock to the LOCK position.
2. Move the actuator rod hole in the switch to the LOCK position.
3. Install the switch with the rod in the hole. Adjust the ignition switch as follows:
   1. 1990 - Place a 3/32 inch drill bit in the hole on the switch to lock the switch into position. Move the switch slider to the extreme left position then move the slider 1 detent to the right OFF LOCK position. Remove the drill bit.
   2. 1991-93 - Install the ignition switch in the LOCK position. Move the switch slider to the extreme right position and move the slider 1 detent to the left LOCK position. Depress switch mechanism slightly to insert a 3/32 inch drill bit into ignition switch.
   
   
4. Position and reassemble the steering column in reverse of the disassembly following the proper coil centering procedure. Enable the air bag system, if equipped, as follows:
   1. Connect the yellow 2-way SIR harness connector located at the base of the steering column.
   2. Install the SIR fuse to the fuse block.
   3. Turn the ignition switch to RUN and verify the inflatable restraint indicator flashes 7-9 times and then turns off.
   
   

If moving the ignition around gets it to crank, you've got a bad ignition switch. A bad switch will occasionally function when moving the key around in the ignition or moving the switch around as you've described. The contacts wear with time (especially if there are a lot of keys on the key chain) and need replacing when constant contact can't be maintained to start the vehicle. Best of luck with your problem. Take care!