I have spent some time removing interior parts to know you have a job ahead of you. Like MB DOC said, it takes him 1 and 1/2 hours to do the job. I would allow at least 5 hours. The first hour to drink a few beers just to prep. The last hour to admire your work. haha
Best to take out the console. The pod, as MB DOC stated is below the heater. When you get the console out, look behind where the ashtray used to be. You will see two pods. One in front of the other. The fresh air, if memory serves, is the one tucked in the farthest.
As you are removing things, check the plastic vac lines. Make sure one has not disengaged. May save you some time if the pod is really not the cause.
There is one pod, the blend door pod, that is located on top and center of the HVAC. This one requires the dash to be removed for access. It also has an electrical lead. Not sure of it's purpose. Maybe a positioning sensor.

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