Initially, my key would not come out of the ignition. In my attempt to repair it, I followed the steps from another thread, depressing the brass plunger on the iginition solenoid, and was then able to remove the key. This worked for about 2 minutes. When I put the key back into the ignition, and tried to turn it forward, it now will not rotate so that I can start the car. No matter what I have tried, I cannot get turn the key, and obviously cannot start the car. Suggestions?