loud clicking noise in the dash

This is typical when a blend door actuator goes out here are the locations of each so you can find out which one it is and replace it. Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.

This all started with a loud rapid clocking noise and no heat in the center to drivers side under dash.

any other coincident events take place when/prior to this started happening? for instance like battery change

Thank for replying, it turns out I was given the wrong actuator motor.. TWICE!! I tore the dash apart three time and can now change an actuator motor in 45 minutes. Note: always ask counter person to verify of the moter is for an automatic or a manual heating and cooling system. If they tell you the motor looks different because it's aftermarket, make them check again. After putting in this last motor everything is fine. The blend door wasn't in need of changing. I don't know what price to put on aggravation but to have the local mechanic do the jub would have been $950.00 that I just didn't have. Thanks again for your reply!

and thanks for your solution reply!