The question you ask is too involved for a proper answer. You need to go to a car parts store, and get a repair manual for your car. They cost about $16.00 Or, go to a Public Library.
No
How do you Change Windshield Wiper Blades on a 2004 Chevrolet Trail Blazer?
Remove the windshield wiper arm from the windshield wiper motor. Remove the wiring harness. Remove the retaining nut. Reverse the process to install the new windshield wiper motor.
The metal panel between the hood and windshield is removed to service the wiper motor.
Windshield wiper motors are 'ground on' motors, that means at the top of the cycle it is loosing 'ground' on the motor plate inside the unit (more than likely). Either rebuild the motor assembly or replace it.
When it runs out!
how to change the windshield wiper motor in a 2000 jeep wrangler
The 1996 Chevrolet Caprice windshield wiper motor can be found on the firewall in the engine compartment. It should not have anything the do with the fan motors.
Change the wiper blades.
You do not want to have wipers that extend off the edge of the glass - it hinders the performance of the wipers, shortens the life of the wiper and can create stress and damage to the wiper arms, wiper linkage and wiper motors.
Car or Bike?
How do I change the wiper seitch on 2003 cts cadilac