I tried following the instructions in my repair manual, which was a big mistake. They recommend removing the steering wheel, then the turn signal assembly, then 'unbolt' the ignition lock assembly. The wheel is very difficult to remove, even with the proper tools and the ignition assy has 'snapoff' bolt heads, which means they need to be drilled out -- next to impossible while in the car.
I highly, highly recommend removing the entire steering column. Sounds intimidating, but its a lot easier than it sounds. Six bolts hold it in place, plus a handful or connectors. I can remove one in about 30 minutes, but I've done it a few times before. Once out of the car, drill out the two bolt heads and the ignition assembly can be removed. No need to remove the steering wheel or turn signal assy. Two words of caution: 1.) The steering column has a couple of thin plastic pins that are designed to shear off in an accident, allowing the column to collapse (telescope). Be careful: one good whack with a hammer can shear these, destroying the column. 2.) Make sure the steering wheel is centered in its travel before installing, because if the internal turn signal wires. If you don't, the first hard turn will snap the turn signal wires.
Good luck.
Ignition Lock? or Door Lock?
I just replaced the ignition switch and lock on my '96 Escort. They come as one unit, so you can't just replace the lock tumbler. Remove the steering wheel (using caution for the airbag), and then remove the multi-function switch. Now you can remove the ignition switch and lock.
It engages and disengages the lock that starts the vehicle. There are 2 parts to the switch. The ignition switch and the lock assembly.
Remove the retaining ring at the top of your Chevy S 10 ignition lock cylinder. Slide the ignition lock cylinder out. Remove the wiring harness from the back of the ignition lock cylinder. Reverse the process to install the new ignition lock cylinder.
Begin by removing the retaining ring at the top of your 1996 Chevrolet Silverado ignition lock cylinder. Slide the ignition lock out and remove the wiring harness. Reverse the process to install your new ignition lock cylinder.
Begin by removing the retaining ring at the top of your 1994 Ford ignition lock cylinder. The ignition lock cylinder will slide out. Remove the wiring harness from the end of the ignition lock cylinder. Reverse the process to install your new ignition lock cylinder.
Attach the wiring harness to the end of the ignition lock cylinder. Slide the ignition lock cylinder into the slot. Tighten the retaining ring at the top of the cylinder.
Replace your ignition lock assembly.
install transmission shifter assembly
If the lock cylinder is faulty, the entire steering column lock assembly will have to be replaced. reference " Haynes Repair Manual"
Ignition switch. Not the lock, the column mounted ignition switch.
You will need to attach the wiring harness to the end of your 1984 Chevrolet Blazer ignition lock cylinder. Slide the cylinder into the cylinder slot. Secure the ignition lock cylinder with the retaining ring.