Pretty easy if it's not rusted on. There should be a tab you push down and slide the wiper back and off. If you can't get it, go to autozone not to name drop but they can do it for you for free. See wiper blade installation videos for hook-end wiper arms below.
yes
replace a windshield wiper switch on a 1995 chevy lumina van
Have you checked the fuses for the wipers? It may be that simple.
Bad switch? stalk bad wiper motor? bad low speed winding
There are several types. Go to the parts store and most will show you how to change them
Should be 20"
The most common cause that windshield wipers stop working is a blown fuse. The windshield wiper motor may need to be changed is also common.
under the hood by the engine
are you serious... life blade off windshield, unclip plastic fastener off the center of the wiper arm, remove wiper, replace in reverse order.
The wiper motor on a 1998 Chevy Venture is up under the vents next to the windshield. It is bolted to the firewall.
If the windshield wipers are not working on a 1990 Chevy Lumina, the problem could be with the wiper motor, the wiper motor relay, or a fuse. The least expensive fix to this problem will be replacing the fuse if it is blown.
Turn the wipers off, pull the wiper arm off, and replace it in the correct down position.