Mechanics

IGNITION SWITCH

1994 Jeep Cherokee

Electrical problem
1994 Jeep Cherokee 6 cyl Four Wheel Drive Automatic 150000 miles

When I turned the ignition on my '94 Cherokee this morning, it turned all the way past the usual point of ignition. The usual electrical seemed to engage, but it didn't turn the car on. Someone suggested that I push in toward the steering column hard as I turn and see if that starts it. It did. He said the " tumbler" is broken. I don't know what that is, or if he referred to it correctly. Can you tell my what's broken, and if this is a DIY project?
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Stevenhauge
February 14, 2010.



LOCK CYLINDER R & I Removal 1. Disconnect negative battery cable. Disconnect negative battery cable. Place wheels in straight- ahead position. Remove horn button by pulling button upward. Remove horn switch components. Place components in order of removal. 2. Remove steering wheel retaining nut and vibration dampener. Mark steering shaft and steering wheel for reassembly reference. Use proper steering wheel puller to avoid damaging shaft or threads. 3. Remove lock plate plastic cover. Compress lock plate using Lock Plate Compressor (J-23653 for standard threads or J-23653-4 for Metric threads). See Fig. 2 . Pry retaining snap ring from steering shaft groove, and slide snap ring toward compressor. Fig. 2: Removing Lock Plate & Snap Ring Courtesy of CHRYSLER CORP. 4. Unscrew and remove compressor. Remove snap ring, lock plate, canceling cam and spring from steering shaft. Remove hazard warning switch knob from side of column by pushing inward on knob and turning it counterclockwise. Remove turn signal switch retaining screw. Remove turn signal/wiper switch rod. 5. Disconnect wire harness connector on bracket at lower end of steering column. Remove 3 turn signal switch retaining screws. Pull switch outward toward end of shaft. DO NOT dislodge dimmer switch rod. 6. Insert paper clip below retainer so retainer is flattened. See Fig. 3 . Using needle-nose pliers, remove key warning buzzer switch and contacts as an assembly. 7. Remove lock cylinder retaining screw. Insert ignition key into lock cylinder and turn to ON position. Pull out lock cylinder. Fig. 3: Removing Warning Buzzer Switch Courtesy of CHRYSLER CORP. Installation To install, reverse removal procedure. Ensure lock cylinder bottoms in bore and engages into gear for ignition switch rod by turning key. Fit warning buzzer, with contacts separated, in place. Before tightening screws, ensure dimmer switch rod is in socket in turn signal switch. TURN SIGNAL & HAZARD FLASHER SWITCH R & I WARNING: Lock plate is held by high pressure spring. DO NOT remove snap ring without using lock plate compressor.
2/14/2010 ...


http://www.2carpros.com/forum/automotive_pictures/62217_Locka_2.jpg



http://www.2carpros.com/forum/automotive_pictures/62217_lockb_1.jpg


Tool is available for rental at Autozone.

Merlin2021
Feb 14, 2010.
Thanks for the reply. I've seen other lock cylinder removal instructions that seemed far less complicated, that don't require removal of the steering wheel. Are these for newer models?

Also, I don't see anything in your instructions about the airbag removal. This makes me a little nervous. Can you back out your instructions a couple steps earlier to show me that?

Tiny
Stevenhauge
Feb 14, 2010.
Most 94's dont have air bags, but if yours does, remove the negative battery cable for 2-3 minutes and then remove the screws from behind the wheel and take off the air bag. Reassemble everything and plug connectors back in befroe re attaching the negative cable. This is for Jeep Cherokee SE I think, if you have a different model of Cherokee post you exact model, laredo, sport whatever you have please, and I will re check my sources!

Merlin2021
Feb 14, 2010.