There are two common problems related to the ignition and steering lock assembly on a 986 and 996. Here I'll cover the worse of the two issues, but touch upon the simpler one along the way.
Recently I've been having trouble turning the ignition. The key has been getting harder to turn in the lock, and often fails to return to its normal running position automatically after starting the car. It had to be manually twisted back slightly after starting as otherwise the heating system and headlights won't work.
There are several How To's online on fixing the two issues, so as such this wo