Changing fuel pump and filter on '93 90S?

Does anyoen know difficult this is? would I need any special tools, or should I take any precautions?
When I did this on a Chevy Blazer a few months ago, there was a perssure
release valve under the hood that I had to drain before I could unhook the fuel pump. The pump I know can be accessed from the trunk and should be pretty straight forward.
Anyone know where the filter is and how difficult that might be?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.