I would agree with the previous poster to some extent. Removing and replacing the intake manifold is a little more involved than replacing an A/C compressor, but the concept is the same. Do things one step at a time - take your time - and try to document/remember as much as you can while you are disassambling.

Here's what I would suggest...find the Haynes manual for a 1992-1997 Rodeo, as the 3.1L in the Rodeo is the same 2.8L GM engine in your rig. When you start to work on the truck take plenty of pictures of the brackets and their locations, hoses, and anything else that you might remove (having a digital camera works well). Doing this has saved my @SS a couple of times when I first started working on my rig. Invest in a box of ziplock bags and put and screws that you remove from parts as you go in there, along with labeling the bag (i.e. all the manifold screws). You might want to tape the bag to the part just in case, like the bracket screws to the bracket. You can "borrow" a torque wrench from Discount Advanced Auto Zone Boys <img src="/forums/images/graemlins/smile.gif" alt="" /> for a small fee.

You can do it, it's not that hard, and the only way to learn is to get your hands dirty. Of course, this board is here to help when you get stuck.