Very common problem waaaaay before the recall came out. I've had 1-2 without the recall since it came out. That means over the years I have replaced the CKP sensor in all of the 8100's in Cooke County. If you have never done this job it takes a lot of contorsion and patience. I've got my own method. The sensor is like 6-8" long and goes down into the block behind the LH head under the cowl/firewall. The plastic gets brittle and if you're not careful, it will break off in the block.