I'm having some difficulty in determining why the ignition key in my 90 will not rotate into the "accessory" position. Both ignition keys are factory originals. The ignition lock and switch function normally in all other positions. The car starts every time I turn the key and the key will not rotate into the "lock" position until the transmission (automatic) is placed in Park. Every aspect works fine until I push in on the key and attempt to turn it back into the accessory position. There's zero movement back with no hint that it will turn past lock. The symptoms and "feel" suggest to me that the problem may involve the lock cylinder as opposed to the actual switch. Any suggestions would be much appreciated. Thanks, Bob 13309