I'm trying to figure out why the heat doesn't work in my newport, and according to the service manual, I'm pretty sure it's one of these actuators. I believe it's the heat shutoff door actuator. I can tug on it and hear slurping, I'm not sure as of yet if it's the line or the actuator. For sourcing's sake, is there any place to get these? I can't seem to find them anywhere. It could be a clogged heater core too, but I doubt it, especially as the rest of the car was well maintained. It's starting to get into the 20s here so having the heat is a must. I'll do more troubleshooting tomorrow.