Use a set of pliers and pull the wiper arm off the stud down where it meets the hatch.
The 2002 Chevy Trailblazer takes 22" replacement windshield wiper blades on both sides front and a 16" rear wiper.
The wiper motor is located under the black plastic cowl below the windshield.
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The wiper motor is located under the cowl, (the black cover in between the hood and windshield) about center of the vehicle.
If the front blower and the front windshield wiper do not work on a 2004 Chevy Trailblazer, it could be the fault of the relay switches on the blower and the wiper. Also check the fuse box on top of the battery for a multi-function fuse that might be blown.
There was a recall on the windshield wiper motors. Check with your locate dealer and they may replace it for FREE!!!!
my 02 Chevy trailblazer rear wiper is not working
Front reservoir also serves the rear
How do I replace the windshield wiper switch?
The 2002 Chevrolet trailblazer windshield wiper motor should be replaced, when the windshield wipers are skipping. The windshield wiper motor can be located in the engine compartment.
Very Carefully
This will vary depending on the year of the Chevy Trailblazer. See sources and related links below to lookup correct lengths with correct attachments below.