You can probably get help from one of our gurus at our enthusiasts forum
www.trailvoy.com
where is the defrost/floor door actuator on 2002 chevy trailblazer
The GMT360 platform Trailblazer from 2002-2009 never had a tailgate only a rear hatch. www.trailvoy.com
How do you replace a throttle body on a trailblazer 2002
how to replace the rack and pinion on a 2202 trailblazer
There is no fixing the actuator, replace it with a new one.
You have to open the rear hatch like you would to replace the reg. brake lights. Screws should be accessible once hatch is fully open.
www.trailvoy.com All the answers for your Trailblazer from true enthusiasts!
see "how too replace water pump on 2002 Trailblazer"
Replace defective part
About 20 minutes
You don't!
Could be the mode door actuator. For more info visit our enthusiasts forum at www.trailvoy.com