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Vehicle make/model = 2001 chevy Impala LS Mileage = 130000 Engine size = 3.8l dash lights = none codes = none work done prior = NONE work done to repair = Replacement of Ignition Lock cylinder tech = JK question = my 01 Chevy Impalas lock cylinder was not allowing me to turn the key. I Parked my car and went out to to start it again about an hour and a half later and I was not able to to turn the key. I instaled a new lock cylinder and it will not start. i also noticed that my steering wheel does not lock anymore. When I put in the new cylinder I am able to shift the shifter with out Pressing on the brake pedal. I put the old cylinder back in and the shifter and brake pedalwork normally but car will still not start so I reinstalled new cylinder. To make things even worse I cannot turn the key all the way back to the off position to get the key out. can you please help me?
JK: OK. Sounds like the original problem was a bad ignition cylinder. After replacement, the theft system must be re-learned, or the car will not start. The other problems sound like the cylinder is not installed correctly in the ignition switch. If not indexed properly with ignition switch, this can cause the shifter and not being able to turn key all the way to off. Or possible a damaged ignition switch. Try removinf the cylnder, and use a screw driver in the ignition switch to check the functions of the shifter problem. Turn the inside of the ignition switch clockwise to make sure all dash lights come, as if turning the key. Them turn back to off position to see if shifter problem corrected. If so, then the cylinder is not being installed properly. Afterwards, the theft will still need to be re-learned before it will start.