Squeaking fan motor

Do you mean a change in the weather?

Because I doubt the problem is related to average global temperature changes...

 

its back the squeak

 

I suppose my behind the dash is somewhat similar
the foam cushion on the damper? are starting to wear and coming out of the vents now with A/C and defog on
when they become completely gone will there be a rattling noise

 

It's possible, but I don't think so if its just the foam around the tip of the duct. That is there mainly to prevent the heat/cool loss from any back pressure created when the vents fins are partially/fully closed. More likely to make some kind of air loss type noise.

 

do you have pic of dash apart on the trucks with NO passenger airbag
there is rattle coming in from the fresh air channel/lever (not sure what its called), foam pieces keep spewing out now and then
i did have the dash apart at the salvage yard (all the way to the heater core) a month or so back but batteries dead and no further pics than odo/vin