Impala Ignition Lock Cylinder Replacement

Question:
My 2001 Chevy Impala lock cylinder was not allowing me to turn the key. I Parked my car and went out to start it again about an hour and a half later and I was not able to turn the key. I installed 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 pedal work 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? 2001 Chevy Impala LS. 3.8l 3800 V6 Repairs = Replacement of Ignition Lock cylinder.

Answer:
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 removing the cylinder, 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.

Chevy Impala

Read More Below Or See These Related Articles:

Question:
2001 Chevy Impala. Trying to attach the ignition switch wiring to the top of the switch. Had to pry it out but can't put it back in.

Answer:
Well, the first thing you did wrong was prying it out. That connector is for the Passlock sensor. The only way to remove it is to remove the ignition cylinder first, then it comes right out.

To reinstall it, you have to plug it in before you re-install the ignition cylinder. you may have damaged it, so be sure it stays in tightly or you will have a problem with the security system and the car will not start. It does move around a little bit when it is in correctly, but not much.

Problem with my 2001 Chevy Malibu service vehicle soon.
Question:
The service vehicle soon light has been on since the collision. The mechanics cannot find a code. Chevy seems to have rumors about themselves purposely having computer input this data for the light to come on. How do i turn the light off? Nothing needs to be done to the car. Needed to know how to tell the computer to turn the service vehicle light off.

Answer:
The service vehicle soon light is different then the service engine soon. This is for a body system problem detected. Usually because of a lighting problem, or a communication problem between several different modules. Since it was after a collision, it may be that you need to re-program the BCM to learn the new air bag module part #. Anytime an airbag module is replaced, it must be programmed with the proper VIN of the car.

If you only had the powertrain computer (PCM) scanned, that would not reveal a code for the service vehicle light. You need to have the BCM and other modules scanned. If the light is on, then there IS a code, or a bad module. The only way to tell is to have a good quality scanner.


Help Keep Us Free-
Tip / Donation To the Mechanics


Q and A Main


How Things Work


Electrical