Ignition Lock: Service and Repair

1994 Ford Aerostar AWD V6-245 4.0LSECTION Service and Repair

REMOVAL AND INSTALLATION
1. Disconnect battery ground cable.
2. Remove steering wheel.
3. Using suitable channel lock or vise grip pliers, twist lock cylinder cap until it separates from lock cylinder.
4. Remove steering column trim shroud, then disconnect electrical connector from key warning switch.
5. Place lock cylinder at Run position.
6. Prick punch key lock cylinder retaining pin and drill out with 1/8 inch bit, noting the following:
a. Do not drill deeper than 1/2 inch deep.
b. Put piece of masking tape on bit 1/2 in from tip. Take care not to damage housing.
7. Using 3/8 in diameter drill, drill down middle of ignition lock key slot approximately 1 3/4 in until lock cylinder breaks loose from breakaway base of cylinder.
8. Remove lock cylinder and drill shavings from lock cylinder housing.
9. Remove retainer, bearing and gear. Thoroughly clean all drill shavings and other foreign materials from casting, then inspect housing for damage resulting from removal. If damage is apparent, lock cylinder housing must be replaced.
10. To install, turn lock cylinder to Run position, then press retaining pin and insert assembly into housing.
11. Ensure cylinder is fully seated and aligned into interlocking washer, then turn key to Off position to extend cylinder retaining pin into cylinder housing.
12. Turn key and check for proper operation in all positions.
13. Install steering column trim shroud, then connect key warning switch electrical connector.
14. Install steering wheel.
15. Connect battery ground cable.


RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.