Hey guys I bought 3 actuators from summit and not a single one works properly. The unlock and lock switch works however i cannot get the door to unlock via the lock rod nor will the key turn due to heavy resistance from the actuator. I found that they work just fine and smooth as butter when I take the actuator out. But can only be licked and unlocked through the switch on the door whenever they are back in the car. Anyone have any suggestions on why all of these actuators are so stiff?