1. Worn out Ign Switch ?
2. Internal Parts broken or binding?
3. Bad Key ?
4. Try turning the steering wheel left or right. Some strain on the
steering wheel lock may be causing the Ign Switch to bind. Make sure the
steering wheel isn't turned all the way to the extreme end of its travel
If you monkey around with a steering wheel with an airbig you make make
it go KABOOM in your face. Some other posters should be able to tell you
how to disable the airbag ( If equipped ) so you can work on the car. My
experience with Steering columns has been on non-airbag cars.
Make sure the steering wheel & front wheels are centered before
To replace the ignition switch you have to remove the steering wheel.
The horn hub on my 89 Cav Z - 24 just pressed on and could be pulled off
by hand. There may also be a trim cap snapped on the end of the steering
column that comes off aftee the horn pad is removed.
Horn wire needs to be removed next. Twist & pull out. Then there is
about a 3/4 nut holding the wheel on.
There is a snap ring / clip on the end of shaft you need to remove as
well. It keeps the nut from loosening.
Remove the nut & snap ring, you might also need to get a steering wheel
puller to remove the wheel off the end of the steering column. It can be
a very tight press fit.
There may be centerpunch marks on the end of the spline shaft & inner
diameter of the steering wheel spline to show proper alignment, if there
isn't any marks you need to put two marks on it so you can get the
steering wheel back on in it original position or the wheel will be off
center when driving.
If the wheel has been off several times it may come off by just pulling
outward on it. Once the wheel is off, if I remember correctly the
turnsignal switch comes out next. You may just be able to remove a few
screws , pull it out just enough to clear the end of the steering
column, twist it aside to gain access to the ignition switch.
I forget what all holds the ignition switch in place but it is a simple
task to remove & replace. I replaced an ignition switch in 1986 so its
Having a repair manual would help too.
1991 Pontiac Bonneville LE, 3800 V6
_~_~_~_~274,129 miles_~_~_ ~_~_