Cavalier/Z24 L4-134 2.2L (1991)
Ignition Switch Lock Cylinder: All Technical Service Bulletins
Ignition Lock Cylinder - Key Sticking
Number:
91-294-3F
Section:
3F
Date:
APRIL 1991
Corp. Bulletin No.: 173201R
Subject:
IGNITION KEY STICKS IN THE LOCK CYLINDER
Model and Year:
1991 CAVALIER ONLY
DESCRIPTION:
1991 Cavalier models equipped with a floor shift automatic transaxle use a Park Lock System. This system uses a park lock cable which is attached to
the floor shift lever at one end, and the column mounted lock cylinder housing assembly at the other end. Under certain circumstances, the vehicle
operator may experience a situation where the ignition key sticks in the ignition lock cylinder. Vehicles involved are as follows:
Janesville Plant. Start of production through MJ132664.
Lordstown Plant. Start of production through M7129428.
SYSTEM CHECK PROCEDURE:
Use the following procedure to check the Park Lock System and verify that the ignition key cannot be removed from the lock cylinder.
1.
Place shifter in the "Park" position and turn ignition key to the "Off Lock" position.
The key should be able to be removed, if you are not able to turn the key to "Off Lock" and remove the key, refer to Condition "A."
2.
Check and make sure that the shifter cannot be moved from the "Park" position by depressing the shifter button and attempting to actuate the
shift assembly.
The shifter should not shift from park. If able to shift, refer to Condition "A."
3.
Turn ignition key to the "Run" position.
4.
Move the shifter to the "Neutral" position.
5.
Turn ignition key to the "Off Lock" position.
The iginition key rotation should stop before reaching the "Off Lock" position and the key cannot be removed from lock cylinder. If key is removable,
refer to Condition "A."
6.
With the key in the same position (before reaching "Off Lock"), return the shifter to the "Park" position.
7.
Turn the ignition key towards the "Run" position, then to the "Off Lock" position and remove the key.
8.
Replace key in the ignition lock cylinder.
The Park Lock System is operating properly if all of the above steps can be completed correctly. If the ignition key still sticks in the ignition lock
cylinder, go to Condition "B".
