Ignition swich lock cylinder replacement on a 1994 grand caravan

If the ignition wont lock in place,just redo it but this time you need to realize that you install the key cylinder with the key in the ON postion,straight into the lock cylinder housing,aligning the retaining tabs,on the key cylinder with the hole in the lock cylinder housing.Then turn the key to the off position,

the key is just the lock assembly the actual ignition switch is behind thelock take the plastic covers off steering housing the ignition is the black square housing held on with tamperproof torx screws easy to replace

tap the ignition lock cylinder with the plastic end of a scrwedriver (with the key removed). then insert the key and try to start. Try this several times. If you get it to turn immediately replace the igntion lock cylinder. The cylinder needs to be in the on position in order for the lock button to be depressed so that the cylinder can be removed from the housing.

If you still can't get it to turn than you will have to drill out the lock button in order to get the old lock cylinder out. I wouldn't recommend doing this unless you have some experience and understand what you are doing.

The lock button can be accessed by removing the lower steering column cover.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Ignition Lock Cylinder - Removal & Installation CAUTION The Supplemental Inflatable Restraint (SIR) system must be disarmed before working around the air bag or SIR wiring. Failure to do so may cause accidental deployment of the air bag, resulting in unnecessary SIR system repairs and/or personal injury.

1. Disconnect and isolate the negative battery cable from the battery.
2. In order to disarm the air bag system, allow the SIR system capacitor to discharge for at least 2 minutes, before performing any removal procedures.
3. Remove the screws that secure the parking brake release handle to the instrument panel.
4. Remove the screws that secure the bottom of the lower steering column cover to the instrument panel.
5. Disengage the retaining clip that holds the right side of the lower steering column cover to the instrument panel.
6. Remove the lower steering column cover from the vehicle.
7. Remove the mounting screws that hold the upper and lower steering column shrouds and remove the lower steering column shroud.
8. Install the ignition key and turn the key cylinder to the RUN position. This is important because it will not only aid in removal of the ignition lock, but will also place the socket (in the lock cylinder housing) in proper alignment for the installation of the replacement ignition lock.
9. Press in the lock cylinder retaining tab and remove the key cylinder (ignition lock).
   
   
   Fig. Depress the retaining tab to remove the key cylinder
   

To install:

1. Install the ignition key into the replacement ignition lock key cylinder. Turn the key to the RUN position. Depress the ignition lock key cylinder retaining tab.
2. Align the shaft at the end of the ignition lock cylinder with the socket in the end of the ignition lock cylinder housing.
3. Align the ignition lock cylinder with the grooves in the lock cylinder housing. Push the ignition lock cylinder into the housing until the retaining tab sticks through the opening in the lock cylinder housing.
4. Turn the ignition key to the OFF position and remove the key.
5. Install the lower steering column shroud and install the mounting screws.
6. Place the lower steering column cover into correct position on the lower instrument panel and engage the clip that secures the right side of the cover to the instrument panel.
7. Install the lower steering column mounting screws.
8. Install the mounting screws that hold the parking brake release handle to the instrument panel.
9. Reconnect the negative battery cable.

Hope helps (remember rated and comment this).

replace the entire lock ring and ignition assembly

Here's a copy of a service bulletin on your problem.

I'll bet the dealer says $300 for parts and 2 hrs labor.:screwy:

Ignition Key - Will Not Turn And/Or Cannot Be Removed
NUMBER: 23-23-00
GROUP: Body
DATE: JUNE 30, 2000
SUBJECT:
Ignition Key Will Not Turn And/Or Cannot Be Removed
MODELS:
1997 - 2000 (NS) Town & Country/Caravan/Voyager
OVERVIEW:
This bulletin involves performing one or any combination of the following procedures; cutting a new ignition key, and/or adjusting transmission shifter cable, and/or replacing the ignition lock cylinder and/or replacing the ignition lock housing and switch assembly.
SYMPTOM/CONDITION:
1. Cannot turn the ignition key when attempting to start vehicle, this condition may be intermittent.
2. Unable to remove the ignition key from the lock cylinder.
PARTS REQUIRED:
AR(1)04778115 Key
AR(1)05003843AB Cylinder, Ignition Lock
AR(1)04690523 Assembly, Ignition Switch and Lock Housing
EQUIPMENT POSSIBLY REQUIRED:
Key Cutter such as Pentastar Service Equipment (PSE) IL-MK1-P2627 or
IL-ECM-100
T-27 Torx Bit
T-25 Torx Bit
T-10 Tamper Resistant Torx Bit
SR-706059 Lock Cylinder Build Kit, Pentastar Service Equipment (PSE)
DIAGNOSIS/REPAIR PROCEDURE:
DOES NOT REQUIRE HOISTS OR OTHER FULL SERVICE FACILITY SPECIAL EQUIPMENT. THIS REPAIR IS COMPATIBLE WITH DAIMLERCHRYSLERS MOBILE SERVICE PROGRAM.
SYMPTOM/CONDITION ONE
1. Ensure the steering wheel is centered and the vehicle is positioned on a level surface.
2. Disconnect the negative battery cable.
3. Insert ignition key into the ignition lock cylinder and attempt to rotate the key to the start position and then the accessory position.
4. If the key does not turn, remove the key from the lock cylinder and rotate it 180°. Reinsert the key into the lock cylinder and attempt to rotate the key. If the key does not turn skip to step 14. If the key does turn make a new key.
NOTE: USE THE KEY CODE ON THE VEHICLE INVOICE TO CORRECTLY CUT THE NEW KEY. KEY CODES ARE ALSO AVAILABLE USING THE D.I.A.L. SYSTEM, MAIN MENU OPTION 13. DO NOT USE A KEY DUPLICATOR TO MAKE THE NEW KEY.
5. Insert the new ignition key into the ignition lock cylinder and attempt to rotate the key to the start position and then the accessory position.
6. If the key turns, remove the key from the lock cylinder and turn it over 180°and reinsert the key into the lock cylinder. Attempt to rotate the key.
7. If the key turns, repeat steps 5 and 6 ten times. If the key continues to rotate smoothly the repair is complete. If the key fails to turn smoothly at each rotation attempt, continue to step 8.
8. Remove the ignition lock cylinder using the procedure outlined on page 8D-29 of the 2000 Town & Country, Caravan and Voyager Service Manual (Publication No. 81-370-0005). DO NOT ATTEMPT TO DISASSEMBLE THE Lock CYLINDER.
9. Build a new lock cylinder to the key code on the vehicle invoice, using the instructions in the Pentastar Service Equipment SR-706059 Lock Cylinder Build Kit.
10. Install the new ignition lock cylinder using the procedure outlined on page 8D-29 of the 2000 Town & Country, Caravan and Voyager Service Manual (Publication No. 81-370-0005).
11. Insert the new ignition key into the new ignition lock cylinder and attempt to rotate the key to the start position and then the accessory position.
12. If the key turns, remove the key from the lock cylinder and turn it over 180°and reinsert the key into the lock cylinder. Attempt to rotate the key.
13. If the key turns, repeat steps 11 and 12 ten times. If the key continues to rotate smoothly the repair is complete. If the key fails to turn smoothly at each rotation attempt, continue to step 14.
14. Remove the ignition lock housing and ignition switch as an assembly using the procedure outlined beginning on page 19-47 of the 2000 Town & Country, Caravan and Voyager Service Manual (Publication No. 81-370-0005).
NOTE: SKIP STEPS 13 AND 14 OF THE SERVICE MANUAL REMOVAL PROCEDURE SO THE IGNITION LOCK HOUSING AND IGNITION SWITCH ARE REMOVED AS AN ASSEMBLY.
15. Install a new ignition lock housing and ignition switch assembly, p/n 04690523, using the procedure outlined beginning on page 19-49 of the 2000 Town & Country, Caravan and Voyager Service Manual (Publication No. 81-370-0005).
NOTE: PRIOR TO PERFORMING STEP 2 OF THE SERVICE MANUAL LOCK HOUSING INSTALLATION PROCEDURE, INSTALL THEN REMOVE THE TWO LOCK CYLINDER HOUSING MOUNTING SCREWS INTO THE LOCK HOUSING MOUNTING HOLES TO CREATE THE THREADS IN THE HOLES.FAILURE TO CREATE THE MOUNTING HOLE THREADS PRIOR TO INSTALLATION TO THE STEERING COLUMN MAY CAUSE MISALIGNMENT OF THE LOCK HOUSING TO STEERING COLUMN AND DAMAGE BINDING OF STEERING COLUMN MAY RESULT.
STEPS 5 AND 6 OF THE SERVICE MANUAL INSTALLATION PROCEDURE FOR THE LOCK HOUSING ARE NOT NECESSARY FOR THIS TSB PROCEDURE.
WHEN PERFORMING STEP 9 OF THE SERVICE MANUAL PROCEDURE USE THE NEW LOCK CYLINDER THAT WAS BUILT IN STEP 9 OF THE SYMPTOM/CONDITION ONE DIAGNOSIS / REPAIR PROCEDURE OF THIS BULLETIN.
16. Insert the new ignition key into the new ignition lock cylinder and attempt to rotate the key to the start position and then the accessory position.
17. If the key turns, remove the key from the lock cylinder and turn it over 180°and reinsert the key into the lock cylinder. Attempt to rotate the key.
18. If the key turns, repeat steps 16 and 17 ten times. If the key continues to rotate smoothly the repair is complete.
SYMPTOM/CONDITION TWO
1. Check the operation of the shift lever. The shift lever should fall freely away from the driver when it is brought up into the Park position.
2. If the shift lever does not seat fully up and away from the driver the column will not allow the key to be removed.
3. If binding of the shift lever is discovered, adjust the transmission shift cable using the procedure outlined on page 21-114 of the 2000 Town & Country, Caravan and Voyager Service Manual (Publication No. 81-370-0005).

Its usually NOT the lock cylinder on the 470s, its usually the housing. The cylinder is on the dash and points towards the engine. Behind the plastic dash panel (once removed) you will see it in fact sticks in an aluminum tube that goes down 2 or 3 inches, then makes 2 turns, left to attatch to the steering column, and right to attatch to the actual ignition switch. The gear and rod assembly that the cylinder attatches to that allows it to rotate the switch usually shatters in the middle and the key starts freewheeling because there is no longer any attatchment to any of the gears or springs or click points that youd usually feel as the rotational resistance. UNFORTUNATELY this is not a 5 minute job (If it was, cars would be a breeze to steal!). Youll need at least a lock cylinder housing (dealer stock em, they break all the tyme), and IF your cylinder is undamaged, change the housing (it bolts to the steering column and extends from column towards center console area where the ignition SWITCH is actually located). If your cylinder is damaged or the housing is so shredded you cant remove the lock cylinder by normal means...then youll also need the cylinder...and it will have to be recoded to the vehicle so the anti theft will allow the new keys/cylinder to start the car. If your old cylinder and keys are intact, then transfer them to the new housing and car wont even know it happened and should start up and work as normal. Some can be removed intact, some cant...depends on how yours broke.

Here is how to remove ignition lock:

   Rotate ignition lock cylinder to RUN position. Using a 1/8-inch drift, depress lock cylinder retaining pin through access hole and remove lock cylinder.

Carefully NOTE: the position of the bearing retainer prior to removal.

   Remove blue plastic bearing retainer by inserting a screwdriver or similar tool, with a 90 degree bend on the tip, between bearing retainer and bearing and by prying upward.

   Insert tip of a screwdriver into Double-D slot of bearing, then rotate 90 degrees. Remove bearing.

   Remove lock drive gear. Carefully note relationship of lock drive gear to position of rack teeth.

Here is the installation:
   Position lock drive gear in base of lock cylinder housing in the same position as that noted during removal procedure. The position of lock drive gear is correct if last tooth on drive gear is meshed with last tooth on rack.

   Position bearing retainer in lock cylinder housing. Insert tip of a screwdriver into Double-D slot of bearing, then rotate 90 degrees.

   Press blue plastic bearing retainer into lock cylinder housing. Ensure retainer is in its original position.

   Line up flats of drive gear with flats of washer by pulling down on the column lock actuator.

   Install lock cylinder assembly.

   Check for proper start in PARK and NEUTRAL. Also, check to ensure start circuit cannot be actuated in DRIVE or REVERSE positions and the column is locked in LOCK position.

REMOVAL: 

NOTE: The Supplemental Inflatable Restraint (SIR) system must be disarmed before removing any components in the area of the air bag system. Failure to do so may cause accidental deployment of the air bag, resulting in unnecessary SIR system repairs and/or personal injury. 

Disconnect and isolate the negative battery cable from the battery. 
Allow the SIR system capacitor to discharge for at least 2 minutes, before performing any removal procedures. The air bag system is now disabled. 

Remove the key cylinder (ignition lock). 
Using a No. 10 Torx® tamper proof bit, remove the ignition switch mounting screw. Depress the ignition switch retaining tab and carefully pry the ignition switch from the steering column. 
Disconnect the electrical connectors from the ignition switch and remove the switch from the vehicle. 
INSTALLATION: 
Be sure the ignition switch is in the RUN position and the actuator shaft in the ignition lock housing is in the RUN position. 
Reconnect the electrical connectors to the ignition switch. 
Carefully install the ignition switch, making sure the ignition switch snaps over the retaining tabs. 
Install and tighten the ignition switch mounting screw. 
Install the key cylinder (ignition lock). Complete the installation by reversing the removal procedures. 
Reconnect the negative battery cable. 
Check switch operation. 

Good Luck and hope this helps

Grandammit...Hey...replacing a lock cylinger requires recoded ignition keys, and a new lock cylinder requires dissassembly of the steering column. Not an easy fix, and I wonder if you are really the thief..you don't sound like a 9 month pregnant girl. Sorry......if I am wrong I am wrong. Drive it with a scredriver until you give birth then fix it.