I think you can get to the blend door actuator from the drivers side looking up to the right on some cop car models. You need to remove the lower panel if there is one.
Work the arm with your hand or remove the actuator and move the pivot to confirm.
Here is a guide that can help:
Here is some diagrams of you need to remove the dashboard to change the blend door actuator. (below)
Please let us know what happens.
Images (Click to enlarge)
Friday, August 18th, 2017 AT 2:36 PM