The truck puts out warm air and new blower is doing fine but it seems like I can't get it to 100% dedicate air when I use the selector between defrost or any of the other vents. It does switch but the other vents are also moving air. I assume it's part of the flap the directs the air to the vents, floor, defrost and rear vent. Anybody know how to go about fixing it ?
The little selector motor is moving when I twist the selector swtich.