chicagochuck 
My buddy bought a 01 grand prix 100,000 3100 motor
About a week ago the key would not turn in the cylinder..The tumbler is stuck It cannot be turned backwards or forward to start the car. Eventually it worked after messing with it. But it did it again today and She couldn't even get the car home.
I have read around about the key getting stuck in the ignition and the key not turning to the off position, but this one is the tumbler is stuck in the off position as if its the wrong key, or as if the steering wheel is locked which neither is the case. ......She only got one key with the car.
Secondly the oil pan screw can be loosened but will not come out of the pan completely.. I could possibly yank it out but wanted to make sure I had a solution to get a bolt back in, or would a whole new pan be the only remedy? oversize plug?
