Working on a 2000 caravan with no heat on passenger side.

I have searched and saw about the longer rod mod, my question is this;

I pulled the passenger side actuator and it dose nothing when I change the slider from hot to cold. So I'm guessing that's bad.

But when I move the rod manually I can feel the door hit the stops both ways so I think the door is ok but when I move it one way with the blower on it goes all the way to the stop and almost no air comes out the passenger vents. Is that normal?

I was not able to get heat to the passenger side.

 

It was very common on those for the sliders to stop working so when you slid it from cold to hot, the resistance never changed. It does require you to replace the control head but that is the direction I would look. Run the system calibration and see if the motor moves then, if it does, most likely the slider.

 

Thank you for your reply! I did pull the driver side actuator and plugged that into the passenger side wiring. It moved with the pass side control.

This might be as simple as a actuator needs replacement.

I was just confused at why when i manually moved the door the air stopped blowing, I expected it to get hot???

I move it full one way it blows cold I move it full the other way it dosen't blow at all, or very little.

Thanks