Anybody ever experience a power door lock going out? I've got an 2005 Supercab with only 65k miles. The past couple days the door lock motor would make a straining noise and finally last night it it would not unlock, but would lock. Now this morning, it will not do anything. I'm pretty sure the motor went out because there is no noise coming from the power lock. I called local ford place and was told that midway through the 05 production model FoMoCo changed parts numbers. Parts guy told me to bring it and they would diagnose it for about 65 bucks. Anybody have a part number or insight?

Thanks