How to Access the engine?

I don't really work on vehicles much but I have to now to change the Air filter. Thanks for your Help.

Well, your air filter is the easiest to get at. It's under the blk plastic shroud on the top of the engine bay. Believe it says vortec on it. Undo the 2 metal clips and voila. Mines a 98 Astro and I just replaced mine last weekend. Hope this helps.