| Inside the door there's a steel rod that runs from the door lock pillar (not sure that's the correct name but it's the thing that's up when unlocked and down when locked) that steel rod attaches to a black plastic unit which is bolted to the inside of the door. Pop the steel rod out. The unit has a bladder at the top, power running to it (3 cables I recall) and a yellow vacuum hose. I believe that unit is the actuator and may be the part you need to replace. Post back here if it works then I can replace mine.
...when I have the cash | 
