Some 09 people have found they have the valve stem type.
I sold my stock wheels and tires with the sensors in them and drove around with my aftermarket wheels without sensors for about 8 months before getting the sensors finally. They can be bought from tousley ford. You can have any tire shop install them then go to the ford dealer service bay and they will activate them for free. The calibration process takes them less than 45 seconds.
you may have the valve stem style sensor though. You really can't tell unless you have a tire removed
Current Performance Mods: FSWerks CAI, Custom 2.5 inch Exhaust, SCT xcal 3 with Custom 93octane Tune, Rota SlipStream 13lb wheels, FSWerks 4-1 Race Header,High-Performance Tires,FSwerks Stress Bars, FRPP Suspension