Reduced air through defrost vents

Hi Ken,
I had a feeling it might have been a door issue but I had hoped that it would be a much simpler fix. I do really appreciate your investigating and information you posted. Every now and then, I am up for a challenge and this information seems to cover everything. If I do not get the chance to work on this before it gets too cold, I may just put a small 12 volt heater/fan on my dash, if I can find one small enough and of good quality.

Thanks again Ken,
Eric

Hi Wrenchtech,
I was actually think if a borescope would allow me to see anything. However, I was thinking I would use it on the actuator that has the blue line, that goes into the black box under the dash, because I cannot see what is connected to the other end of the actuator arm. The actuator with the red and yellow lines is easier to get to though. If I get a scope, would I go up through the floor vent or down through the windshield opening?

Thanks for your help,
Eric

I am going to see if I can find a borescope.

Thanks Wrenchtec,
Eric

Hi Ken. Hi Wrenchtech.

I guess I forgot and got too busy to let you know what I ended up doing. I never got a scope but instead did some digging and found I was able to disconnect the floor heat deflector. It took some work, including removal of both actuators. Upon removing the deflector, I was able to get a good look at the defrost door. It was working properly. I decided to check the panel (vent) door but could not get my hand/arm into the duct work. I snipped a thin piece of plastic used as a support for the deflector and could reach all the way into the panel (vent) chamber. I found the problem. The panel (vent) door had dislodges from its pivot and was simply moving back and forth when the actuator was moving, instead of open and close. Although by feel, I could not seem to get the door back into its "groove", I was able to easily close the door and now I get 99% of air out the floor and defrost vents. Not having panel (vent) air is not an issue at all especially now that it is cold. I use the floor/defrost or just defrost until everything is clear, then switch to floor only and it is perfect.

I would like to thank both of you again for all your help.

Happy Thanksgiving,
Eric