No start after removing ignition switch and lock cylinder.

Ignition and Start Switch Replacement
Removal Procedure
Disconnect the battery ground cable. .
Remove the steering column filler panel.
Remove the knee bolster bracket.
Remove the instrument panel (I/P) cluster trim panel.
Remove the ignition switch bolts.
Lower the ignition switch away from the instrument carrier.
Insert the key into the ignition lock cylinder. Turn the key to the ON/RUN position.
Depress the transaxle park/lock cable retainer to release. Pull to remove the park/lock cable from the ignition switch.
Important: The Passlock? electrical connector cannot be removed until the lock cylinder is removed.

Depress and hold the detent on the bottom of the ignition switch in order to release the ignition lock cylinder. Remove the ignition lock cylinder with the key.
Disconnect the Passlock? electrical connector.
Disconnect the electrical connectors.
Important: Ignition switch lock cylinder that won't rotate or is seized.

Perform the following procedure if the ignition switch lock cylinder is seized or won't rotate.
12.1. Protect the immediate work area with suitable material such as clean shop towels or a clean fender cover.

12.2. Locate the surface for the ignition switch lock cylinder release button (2) on the plastic ignition switch housing and center punch a location (1) on the "rib" approximately 3/8 inch reward (toward the key entry end) from the cylinder release button.

12.3. Carefully drill a hole through the plastic housing with a 1/8 inch drill bit.

12.4. Carefully drill a larger hole at the pilot location, and slightly into the ignition switch lock cylinder surface to break the release button retaining spring using a 9/32 inch drill bit.

12.5. Remove portions of the broken spring from the hole using a small suitable tool.

12.6. Grasp the ignition switch lock cylinder and remove it from the switch housing.

12.7. Remove any plastic "flash" from the drilling operation, and using compressed air blow out the ignition switch assembly.

12.8. Follow service manual procedures when cylinder cording is required. Refer to Key and Lock Cylinder Coding in General Information.

Installation Procedure
If the lock cylinder would not rotate or was seized, perform the following procedure:
1.1. Install the new ignition switch lock cylinder as required by rotating both the cylinder and the ignition switch to the ON position.

1.2. Push the ignition switch lock cylinder into the ignition switch housing until fully seated.

1.3. You may have to slightly depress the release button as the button passes by the 9/32-in hole previously drilled in the ignition switch housing.
Connect the electrical connectors.
Connect the Passlock? electrical connector.
Connect the park/lock cable to the ignition switch Turn the key to the ON/RUN position. Install the ignition lock cylinder into the ignition switch. If you turned the key slightly while removing the lock cylinder, you may have to align the white colored ignition switch rotor (1) with the lock cylinder (2). You can rotate the ignition switch rotor (1) with your finger.
Remove the key
Position the ignition switch to the instrument carrier.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Install the ignition switch bolts.
Tighten

Tighten the bolts to 10 N?m (89 lb in).

Install the trim plate bezel to the I/P cluster. Refer to Trim Plate Bezel Replacement - Instrument Panel (I/P) Cluster .
Install the knee bolster bracket. Refer to Bracket Replacement - Knee Bolster .
Install the steering column filler panel. Refer to Steering Column Filler Replacement .
Connect the battery ground cable. Refer to Battery Negative Cable Disconnect and Connect Procedure in Engine Electrical.

Sounds like the ignition switch has gone kaput. The ignition switch come in two pieces, an electrical switch and a mechanical switch.

The switch electrical portion can be replaced separatly from the mechanical portion (tumbler that the key engages). It is not a real difficult repair but requires some mechanical knowlege of how the column is assembled.

This can be verified with electrical test equipment prior to buying a new electrical switch.

Ignition Switch Removal & Installation To Remove:

1. Remove the steering column trim covers.
2. Remove the wire harness from the retainers as needed.
3. Slide the 2 connectors of the multifunction switch assembly out from the bulk head connector.
4. Detach the key alarm connector from the lock assembly.
5. Remove the ignition switch mounting screws and the ignition switch from the steering column.

Ignition switch removal/installation

To Install:

1. Install the ignition switch on the lock module.
   • Tighten the screws to 42 lb in (4.7 Nm).
2. Install the key alarm connector on the lock module.
3. Slide the turn signal and multifunction switch connectors into the bulkhead connector.
4. Install the harness in the original retainers.
5. Install the steering column trim covers.

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Ignition Lock Cylinder Removal & Installation To Remove:

1. Disconnect the negative cable from the battery.
2. Disable the supplemental inflatable restraint (SIR) system.
3. Remove the steering column trim covers.
4. Turn the ignition lock cylinder to the run position.
5. Using an awl with a bent tip, insert the tip into the access hole of the ignition lock cylinder.
6. Turn the lock cylinder to start and push down and hold the lock cylinder retaining pin.
7. Release the lock cylinder to the run position and withdraw the cylinder from the steering column.

Ignition lock cylinder removal

To Install:

1. Align the slot in the steering column to the tab on the lock cylinder and install the lock cylinder until it locks in place.
2. Install the steering column trim covers
3. Connect the negative cable to the battery
4. Check for correct operation

the actuator inside the sterring column that the lock cylinder turns is boken, this is a very complex job and is not for the home tech without a factory service manual.

I think you have a bad ignition switch, not the ignition lock cylinder. they are 2 different things.

Section 11-05: Steering Column Switches 1996 Taurus, Sable Workshop Manual
REMOVAL AND INSTALLATION Ignition Switch Removal

1. Disconnect battery ground cable (14301).
   

1. Remove lower instrument panel steering column cover (04459).
   

1. Rotate ignition switch lock cylinder (11582) to the RUN position.
   

1. Disconnect the ignition switch electrical connector.
   

1. Remove the two screws retaining ignition switch (11572).
   

1. Disengage the ignition switch from the actuator.
   

Installation

1. NOTE: A new replacement ignition switch assembly will be set in the RUN position as received.
   
   Adjust the ignition switch by sliding the carrier to the ignition switch RUN position.
   

1. Make sure that the ignition switch lock cylinder is in the RUN position. The RUN position is achieved by rotating the ignition switch lock cylinder approximately 90 degrees from the LOCK position.
   

1. Install the ignition switch pin into the actuator. It may be necessary to move the ignition switch slightly back and forth to align the ignition switch mounting holes with the lock cylinder housing threaded holes.
   

1. Install retaining screws. Tighten to 5.6-7.9 Nm (50-69 lb-in).
   

1. Connect electrical connector to ignition switch.
   

1. Connect battery ground cable. Check ignition switch for proper function, including START and ACC positions. Also, make certain that the column is in the LOCK position.
   

1. Install lower instrument panel steering column cover with screws.
   

PATH: Chassis Electrical > Instruments & Switches > Ignition Switch > Removal & Installation Removal & Installation

1. Disconnect the negative battery cable.
   
2. Disable the airbag system, as outlined in the Chassis Electrical Section.
   
3. Remove the hush and knee bolster.
   
4. Remove the steering column trim covers.
   
5. With the key installed, turn the key to the RUN position.
   
6. Install a hex wrench into the hole on top of the lock cylinder housing. Push down on the hex wrench to release the tab on the lock cylinder inside the lock cylinder housing.
   

Push down on the hex wrench to release the tab on the lock cylinder inside the lock cylinder housing

1. Slide the lock cylinder out of the lock cylinder housing.
   
2. Disconnect the passlock and key buzzer from the lock cylinder housing.
   
3. Insert into the lock cylinder housing
   

Release the tabs on the ignition switch using ignition switch connector release tool J 42759

1. Pull the ignition switch out of the lock cylinder housing.
   
2. Disconnect the connector from the ignition switch.
   

To install:

1. Verify the alignment of the gear in the ignition switch. If gear is not in position shown, turn gear in ignition switch until you reach the correct position.
   
2. Use a screwdriver to rotate the lock cylinder housing gear counterclockwise until it hits a stop. In order to reach a stop while rotating the lock cylinder housing gear you MUST push and hold in the solenoid on the electric park lock.
   
3. Connect the connector to the ignition switch.
   
4. Insert the ignition switch into the lock cylinder housing. The tabs on the ignition switch MUST be seated inside the lock cylinder housing for proper installation.
   
5. Use a screwdriver to rotate the lock cylinder housing gear clockwise to the start position—allowing it to spring return into the RUN position.
   

Use a screwdriver to rotate the lock cylinder housing gear clockwise to the START position

1. Align the lock cylinder and install the lock cylinder into the lock cylinder housing.
   
2. Connect the passlock and key buzzer into the lock housing.
   
3. Install the steering column trim covers.
   
4. Install the hush and knee bolster.
   
5. Enable the airbag system, as outlined in the Chassis Electrical Section.
   
6. Connect the negative battery cable.
   

the ignition switch is an electrical part. The lock cylinder is whre the key goes and it activates the ignition switch. If you pulled the lock cylinder out, you could operate the car with a screwdriver.
Either you have damaged the ignition switch where the lock cylinder goes into it, or the lock cylinder is damaged where it fits into the ignition switch.

this is 96 taurus, don't have 92 sorry

Section 11-05: Steering Column Switches 1996 Taurus, Sable Workshop Manual
REMOVAL AND INSTALLATION Ignition Switch Removal

1. Disconnect battery ground cable (14301).
   

1. Remove lower instrument panel steering column cover (04459).
   

1. Rotate ignition switch lock cylinder (11582) to the RUN position.
   

1. Disconnect the ignition switch electrical connector.
   

1. Remove the two screws retaining ignition switch (11572).
   

1. Disengage the ignition switch from the actuator.
   

Installation

1. NOTE: A new replacement ignition switch assembly will be set in the RUN position as received.
   
   Adjust the ignition switch by sliding the carrier to the ignition switch RUN position.
   

1. Make sure that the ignition switch lock cylinder is in the RUN position. The RUN position is achieved by rotating the ignition switch lock cylinder approximately 90 degrees from the LOCK position.
   

1. Install the ignition switch pin into the actuator. It may be necessary to move the ignition switch slightly back and forth to align the ignition switch mounting holes with the lock cylinder housing threaded holes.
   

1. Install retaining screws. Tighten to 5.6-7.9 Nm (50-69 lb-in).
   

1. Connect electrical connector to ignition switch.
   

1. Connect battery ground cable. Check ignition switch for proper function, including START and ACC positions. Also, make certain that the column is in the LOCK position.
   

1. Install lower instrument panel steering column cover with screws.
   

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Section 11-05: Steering Column Switches 1996 Taurus, Sable Workshop Manual
DESCRIPTION AND OPERATION Ignition Switch The ignition switch (11572), which is mounted on the steering actuator housing (3F723), operates in the following manner:

• The ignition switch is cycled through rotation of the ignition switch lock cylinder (11582) through a pin which is part of the ignition switch.
• The ignition switch lock cylinder also controls the mechanism which provides a positive lock for the transaxle linkage and the steering system.
• The locking mechanism is located in the steering column housing.

The ignition switch lock cylinder positions are:

• ACC
• LOCK
• OFF
• RUN
• START

The key can be removed from the ignition switch lock cylinder with the column-shift transaxle only when the shift lever is in PARK position and the key is in LOCK position.

• The ACC position operates while the steering and transaxle remain locked.
• The engine shuts off when the key is turned to the OFF position without locking the steering or transaxle.

Blade Type
The ignition switch has blade-type terminals that engage with one multiple connector. The multiple connector is secured to the ignition switch by an integral connector fastener.

the ignition switch is the electrical part behind the lock cylinder where the key goes in.

Ignition Switch Lock Cylinder
Lock Cylinder Functional
Removal

1. The following procedure applies to vehicles that have a functional ignition switch lock cylinder (11582) and keys. If the key numbers are known, the correct key can be made. Disconnect the battery ground cable (14301). For additional information, refer to Section 14-01 .
   

1. Turn the ignition switch lock cylinder to the RUN position.
   

1. Place a 3.17-mm (1/8-inch) diameter wire pin or small drift punch in the hole in the steering column shroud under the ignition switch lock cylinder. Depress the retaining pin while pulling out on the ignition switch lock cylinder to remove it from the housing of the steering column.
   

Installation

1. Install the ignition switch lock cylinder by turning it to the RUN position and depressing the retaining pin. Insert the ignition switch lock cylinder into the steering column housing. Make sure the ignition switch lock cylinder is fully seated and aligned in the interlocking washer before turning the key to the OFF position. This will permit the retaining pin of the ignition switch lock cylinder to extend into the hole of the steering column.
   

1. Using the key, rotate the ignition switch lock cylinder to make sure of correct mechanical operation in all positions.
   

1. Connect the battery ground cable.
   

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Ignition Switch Removal

1. Disconnect battery ground cable (14301). Refer to Section 14-01 .
   

1. Remove the upper steering column shroud (3530) by removing the four or five self-tapping screws. Remove key release lever (3F527) (if equipped).
   

1. Remove lower steering column shroud.
   

1. Disconnect the ignition switch electrical connector.
   

1. Rotate ignition switch lock cylinder (11582) to the RUN position.
   

1. Remove the two screws retaining ignition switch (11572).
   

1. Disengage the ignition switch from the actuator.
   

Item Part Number Description 1 11572 Ignition Switch 2 — Ignition Switch Lock Cylinder Housing 3 — Slot in Lock/Column Assembly A — (Part of 11572) Pin B — Alignment Mark
Installation
NOTE: A new replacement ignition switch assembly will be set in the RUN position as received.

1. Adjust the ignition switch by sliding the carrier to the ignition switch RUN position.
   

1. Check to make sure that the ignition switch lock cylinder is in the RUN position. The RUN position is achieved by rotating the ignition switch lock cylinder approximately 90 degrees from the LOCK position.
   

1. Install the ignition switch into the actuator. It may be necessary to move the ignition switch slightly back and forth to align the ignition switch mounting holes with the lock cylinder housing threaded holes.
   

1. Install retaining screws. Tighten to 5.6-7.9 Nm (50-69 lb-in).
   

1. Connect electrical connector to ignition switch.
   

1. Connect battery ground cable. Refer to Section 14-01 .
   

1. Check ignition switch for proper function, including START and ACC positions. Also, make certain that the column is in the LOCK position.
   

1. Install upper steering column shroud.
   

1. Install the lower steering column shroud and key release lever (if equipped).
   

I have 07 Pontiac Grand Prix, the wrong key was inserted into the ignition the other day. Now when I try to use the correct key it will not insert completly in the ignition, goes in until last 1/4in of key. Im stuck, I bought the new lock cylinder but how do I get the old one out? I cant get the key to insert all the way so I cant get it to the "On" position, it will not turn at all. The key that was inserted in error is whole and nothing is missing it seems like there is something stuck. Any help would be appreciated...