There is a resistor pack that controls the blower motor speed, if it burns out it usually shorts to the highest speed only, regardless of what speed you select with the knob. If you're saying this is what happened to you Creek (I'm NOT sure if you were saying that in your post) replacing the resistor pack usually fixes this, you should be able to access it behind the glove box, right next to the blower motor. (The idea is the resistor pack is in the plenum from the fan and has the air flow from the fan blown over it, that help controls the fan speed, as the resistors cool/heat up, their resistance changes to help control fan speed).
incongnito2u, I forget the exact location of the motor to open the recirculation/vent door above the blower motor/fan. It is somewhere near the door itself and I think it might be bolt to the side of the stack that has the door in it. If you can reach it without removing the dash, it will be difficult to reach at the very least, you might not be able to at all.
If I remember correctly, I did NOT see any gears in the linkage for the recirc/vent door (I could be wrong), it was more a crank and drag link simply pulling/pushing the door open/closed.
I do remember being able to remove the glove box and straining to see it, you can see the door for recirc/vent and watch it open and close and confirm it does it fully. I would do that before assuming the gear parts you found are part of that door and its actuator, it might be somehere else.
Do you have the dual zone environmental control? If you do, you will have motors on each side of the "Air Blend" box, and its possible gears fell out of one of the motors on that side and rolled over to the side where the blower motor/fan is located.
The single zone environmental controls have all the motors for the Air Blend doors on the drivers side, its the same air blend box for both systems, except the manual/single zone system has the driver/passenger doors interconnected and a single set of motors on the driver's side.
Both have a single motor for the air blend door for the heater on the passenger side, very low and forward. But this one doesn't have any gears in it, it just turns the door directly.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.