Need help for a 91 K1500!
 

So, my heat in my truck seems to be clogged up. I know when i got the truck in the spring it had been sitting all last winter. I assumed that the intake to the blower motor might be clogged. I just took off the vent thing just above the hood because i know most vehicles motor sucks in from there. Or am i mistaken? Well my doesn't. I don't know where else to look on the outside for the intake. Any help would be appreciated.

It's been a while since I've worked on a full-size Chevy, but since there's lots of room in there, take a peek under the dash behind the glove box. Your blower motor should be in there, and you might be able to either unbolt it and check out the venting, or see if it's clogged.

What symptoms are you seeing that indicate it's clogged? Does the cold air work, or is it just the heat that isn't working?

Its not really blowing air at all through the vents. i can feel a little bit of air coming through the defrost but its not strong at all. I have a replacement blower motor just haven't seen how to take it out. I have taken out the glove box before but nothing inside there had bolts, that i remember.