If your emergency brake isn't working properly, here's what you should do:
1. Check the brake shoes: The most likely cause of a failing emergency brake is worn or damaged rear brake shoes. These shoes are the components that engage when you pull the emergency brake. This requires removing the rear brake drums (a relatively straightforward job, but requires some tools and mechanical aptitude) to inspect them. If they're worn, they need to be replaced. You'll likely need a shop manual or online repair guides specific to your 2001 S10 to walk you through this process.
2. Check the cables: While less likely, the emergency brake cables could be stretched, frayed, or rusted. Inspect them for damage. Replacing a cable is usually simpler than replacing brake shoes.
3. Check the parking brake mechanism: There's a mechanism within the rear brake assembly that engages the shoes. This can sometimes become stiff or fail. This often requires professional diagnosis and repair.
4. Check the lever: Ensure the emergency brake lever itself isn't damaged or loose. A loose or damaged lever might not fully engage the cables.
Important Note: Adjusting the emergency brake on a drum-in-rotor system is *not* a simple adjustment like turning a wheel. It's almost always handled by replacing worn components. Attempting to adjust it incorrectly can lead to poor braking performance or damage to the braking system. If you're not comfortable performing brake work yourself, take your S10 to a qualified mechanic. Brake failure can have serious consequences.
