If your parking brake isn't working correctly, the problem likely lies within the rear brake system itself and requires professional attention. Here's why you shouldn't try to adjust it yourself and what the likely causes are:
* Internal Adjustment: The parking brake adjustment is internal to the rear brake calipers. Accessing and adjusting it requires specialized tools and a good understanding of brake system mechanics. Improper adjustment can lead to uneven braking, reduced braking effectiveness, and damage to the brake components.
* Possible Problems: Problems with the parking brake on a Trailblazer usually stem from:
* Worn Brake Shoes: The brake shoes in the rear drums are worn down.
* Cable Issues: While not directly adjustable, the parking brake cable could be stretched, frayed, or rusted, reducing its effectiveness.
* Internal Mechanism Failure: The parking brake mechanism inside the rear brake assembly might be faulty.
* Low Brake Fluid: Insufficient brake fluid will affect parking brake performance.
What you should do:
1. Check the Brake Fluid Level: Ensure your brake fluid reservoir is full. Low fluid indicates a leak somewhere in the braking system – a serious problem requiring immediate attention.
2. Take it to a Mechanic: The best course of action is to have a qualified mechanic diagnose and repair the problem. They have the tools and expertise to properly assess and fix the issue, ensuring your safety and the proper function of your brakes. Attempting to fix this yourself could lead to expensive repairs or an unsafe vehicle.
In short, there's no user-adjustable component for the parking brake on a 2002 Chevrolet Trailblazer. A malfunctioning parking brake requires professional attention.
