Cleaning isn't an option on a lot of these as the main cause of failure is a lack of lubrication which causes the cylinder to wear out, it's not just sticky, it's worn out.You guys make this way too hard. I've just now gone and done same trick previously described to my '98 Contour which has virtually same design lock cylinder. It started acting up, key won't insert fully and then the dreaded lock up and no turn. Again, pull apart, clean in solvent, 13 more cents of Dremel grinding on the proper tab corner and presto this one now works like new too. Too easy.
I've had good luck with the one in my SVT by simply greasing the cylinder every couple years, it doesn't even require removal and at almost 10 years and 113,000 miles I'm on the original ignition cylinder.