If your parking brake isn't working correctly, the problem likely lies elsewhere and requires professional attention. Possible causes include:
* Worn brake shoes: The brake shoes in the rear drums are worn down and need replacement.
* Worn or damaged parking brake cables: The cables connecting the parking brake lever to the rear brakes could be stretched, broken, or corroded.
* Internal adjuster malfunction: While the adjuster is self-adjusting, it can fail.
* Contaminated brake components: Grease, oil, or other contaminants on the brake shoes or drums can significantly reduce braking effectiveness.
* Problem with the parking brake lever mechanism: There could be an issue within the lever itself, preventing it from engaging properly.
Do not attempt to disassemble the rear drum brakes yourself unless you have significant experience working on brakes. Improperly adjusted or repaired brakes can be extremely dangerous.
Instead of trying to adjust it yourself, take your 2003 Impala to a qualified mechanic or brake specialist. They have the tools and expertise to diagnose the problem and make the necessary repairs, ensuring your parking brake functions correctly and safely. They can determine if the issue is worn parts, a cable problem, or a more complex mechanical fault.
