i have a 1984 S-10 Pick up and the blower motor works but there is no air out of...

[Jason]

...the vents? I have taken the vents apart and cannot figure this out, help me please!
I can feel a little bit of air and heat at the vents but just a small amount.

 

[kevusaborn]

There may be a vacuum servo that is failing or if it's mechanical, it may be a cable that has
failed, even a duct hose that popped off when or if someone replaced something.

If you don't get a better answer here, try to find a chevy s 10 forum or club that may give you
a better answer...

Good Luck...