it's really simple there's just a cap that covers the nut at the bottom of the arm just pry off the cap loosen the nut and here is where u might of had the problem there is a hinge on the arm u have to straighten the hinge to make it easier to pry off the arm, u should be able to pop it off. if it had never been done before u may want to spray it with wd-40 good luck. When i was trying to remove the wiper arm of my 1997 Chevy Cavalier, i found that by pushing down on the arm and pulling up at the base down by the pivot is the easiest. Pushing down on the arm seems to straighten out and better align the base with the pivot which makes it easier to remove. Push down in the middle of the arm, you will notice the whole arm straighten out.
Its attached to the windshield wiper motor you will have to remove the cowl to get access to it.
http://www.ehow.com/video_4936070_install-windshield-wiper-motor.html?pid=1&cp=1 (this is a complete video on how to remove and replace a wiper motor...very informative.)
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.
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* Pry off the cover for the wiper arm nuts unscrew the nuts and remove both wiper arms * disconnect the windshield washer line remove the single retaining screw release the five push-in retainers and remove the cowl cover * Unplug the electrical connector from the windshield wiper motor * Remove the three wiper motor assembly retaining bolts and remove the wiper motor assembly * Detach the wiper transmission assembly from the wiper motor crank arm * Detach the wiper motor crank arm from the wiper motor assembly * Remove the three wiper motor retaining screws and detach the wiper motor from bracket
Remove the complete wiper assembly from the bottom of the windshield. This will give you room to remove the alternator.
# Remove the windshield wiper arms # Remove the cowl cover # Disconnect the electrical connector from the wiper motor # Detach the wiper motor/linkage assembly from the cowl # Remove the wiper motor retaining bolts and remove the motor
* Remove the windshield wiper arms * Remove the cowl cover * Disconnect the electrical connectorr from the wiper motor * Detach the wiper motor/linkage assembly from the cowl * Remove the wiper motor retaining bolts and remove the motor
# Remove the wiper arms # Remove the windshield wiper cowl cover # Disconnect the electrical connector from the wiper motor and remove the motor # Remove the wiper motor retaining bolts # Pry the linkage arm off the wiper motor pin with large screwdriver
You have to remove the linkage from the wiper motor.