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I changed the ignition lock cylinder of my 2002 Chevy Trailblazer LTZ because it wouldn't go into lock position. It worked for the first four times then it fail again. What is the problem?
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There is an actuator on that side. Pull the plug and put it back in, see if it works. If not, then you will need a wiring schematic to check for power and ground. If both are there, replace the actuator.
unplug the electrical connector to the igntion coil will make the car to quit running.
I think it's a mechanical problem with the ignition lock cylinder. it's required to remove the steering wheel to get to the igntion lock cylinder.
at least get the car to quit running so you can try to get the key to turn by keep on turning the key and move the shifter and tap the brake at the same time. hope it will get loose some how. good luck
Have it scanned and see if there isn't a trans code. If it is spinning out between gears that is called slippage. There is not much you can do since there are no adjustments. The only thing that it could be other than the trans itself is a problem with the TPS, Throttle Position Sensor, and if that is defective and you don't repair it right away you can do serious damage to the trans. (almost 30 years rebuilding trans and 4 of them directly for GM. I know the 4l60e extremely well) Do not drive this if it is slipping. Hope this helps.
under the steering column, there are three or four little holes in the plastic covering. If you look inside, one of them (the one on the right side toward the dash) there is a brass pin inside. This is the pin to release the key. As far as the key not turning, I have had the same problem. The first time I replaced the ignition switch and that solved the problem. However, this makes no sense because the ignition switch has nothing to do with the tumbler being locked. GMC thinks that my anti theft system, which is inside the ignition cylinder is the problem. By removing the ignition switch, it reset the pass lock anti-theft system and temporarily fixed the problem. So, try removing the ignition switch and then plugging it back in. If that doesn't work, your in the same boat as I am, and we may both need new ignition cylinders.
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