I need to replace the trunk lock actuator rod and can't remove the old rod from the acuator motor. The curved end of the rod is attached to the lock itself. The straight, threaded end of the actuator rod is attached (screwed into) to a yellow part on the actual actuator motor. The rod pushes/pulls that yellow part in/out which activates the locking vacuum. I cannot figure out why the old rod will not unscrew from the yellow part of the actuator motor, or how I am supposed to remove the old rod so as to screw in the new one. The rod and/or the yellow part rotate freely in counterclockwise and clockwise but the the rod does not screw in or out. It just rotates. I suppose I could just replace the actuator motor, but it works perfectly well. Any ideas on why I can't get the rod unscrewed and what to do? Thanks.