GM Service Manual Online
For 1990-2009 cars only

Ignition Key Cannot Turn or Sticks in Any Position for Chevrolet Express 1998

Condition

Action

The lock cylinder is faulty.

Replace the lock cylinder. Refer to Ignition Lock Cylinder Replacement - On Vehicle .

The ignition switch is faulty.

Replace the ignition switch. Refer to Ignition and Key Alarm Switch Assembly - Disassemble - Off Vehicle or Ignition and Key Alarm Switch Assembly - Assemble - Off Vehicle .

The lock module gear train is jammed.

Replace the lock module. Refer to Electronic Column Lock Module - Disassemble - Off Vehicle or Electronic Column Lock Module - Assemble - Off Vehicle .