The liftgate on my pacifica would not open but the lights would fllash and it beep like it is going to open. I have to manually opn it. The other day I used the remote to see what would happen if I tried using the remote to open it. Lights flashed it beeped and it opened all the way up but I had to manually close it. Since then it flashes n beeps n will not open at all even manually when the car is unlocked. If I try to open it from the outside I hear a click whe I use the handle and it will not open. I was able to open it from the inside using the emergency door latch. Do I need a new motor or actuator?