Only thing that comes to mind other then replacement would be to attempt to clean it out and lube it.
With the lock removed, and best done with the little red pointer tube thing--soak the guts down with brake cleaner. Hold it upside-down so all the crud runs out of it. Try it with the key a few times while doing this. (try not to allow the brake clean to run down the key and into the key FOB.)
If it breaks free and starts to rotate--then let it air dry totally out. Pick up a can of "Lock Lube" (Liquid Graphite) from your local parts store. DO NOT GET THIS ON YOUR FINGERS! It's a bear to wash off skin! Hose the snot out of the cylinder with the lock lube. The liquid helps the graphite get into the nooks and crannies of the lock core---then 'dries' leaving a coating of dry graphite to keep things lubed. This is the only way I recommend lubing locks. Once dried the graphite will not attract dust and crud, unlike PB blaster or WD-40. (you can try PB or WD-40...but I would hose it out with brake clean...and then lube the cylinder with graphite...)
Let us know how you make out.
S-
With the lock removed, and best done with the little red pointer tube thing--soak the guts down with brake cleaner. Hold it upside-down so all the crud runs out of it. Try it with the key a few times while doing this. (try not to allow the brake clean to run down the key and into the key FOB.)
If it breaks free and starts to rotate--then let it air dry totally out. Pick up a can of "Lock Lube" (Liquid Graphite) from your local parts store. DO NOT GET THIS ON YOUR FINGERS! It's a bear to wash off skin! Hose the snot out of the cylinder with the lock lube. The liquid helps the graphite get into the nooks and crannies of the lock core---then 'dries' leaving a coating of dry graphite to keep things lubed. This is the only way I recommend lubing locks. Once dried the graphite will not attract dust and crud, unlike PB blaster or WD-40. (you can try PB or WD-40...but I would hose it out with brake clean...and then lube the cylinder with graphite...)
Let us know how you make out.
S-
