1. Diagnose the Problem:
* Does the brake pedal travel too far before engaging? This usually points to cable adjustment or wear.
* Does the brake hold the vehicle on a slight incline, but not a steep one? This could be insufficient cable tension or worn brake shoes.
* Does the emergency brake not engage at all? This suggests a broken cable, severely worn shoes, or a more serious mechanical issue.
* Does the emergency brake engage but release slowly or stick? This usually points to cable binding or corrosion.
* Is there a loud grinding noise when engaging the brake? This indicates severely worn brake shoes or other internal mechanical problems.
2. Potential Solutions (with caveats!):
* Cable Adjustment: This is the most common and easiest fix. The cable usually has a self-adjusting mechanism within the rear drum brakes, but it might need manual adjustment. You typically need to locate an adjuster near the rear brakes (often a small nut or star wheel accessible behind the brake backing plate). Caution: Adjusting the cable incorrectly can lead to excessive braking force or inability to release the brake. Consult a repair manual for your specific Jeep model for exact location and adjustment procedures.
* Cable Replacement: If adjustment doesn't work, or the cable is frayed or broken, you'll need to replace it. This is more involved and might require some mechanical skills. You'll need to disconnect the cable at both ends (near the lever and at the rear brakes), and route a new cable.
* Brake Shoe Replacement: Worn brake shoes are a common cause of poor emergency braking performance. Replacing them requires removing the rear drum brakes, carefully inspecting and replacing the shoes, and reinstalling the drums. This is a more complex job involving specialized tools.
* Emergency Brake Lever/Mechanism Repair: Problems with the lever itself, inside the vehicle, are less common but possible. This could involve internal linkage issues or a broken cable connection at the lever.
* Other Mechanical Issues: More serious problems could involve damage to the rear brake drum assemblies, internal brake components, or even damage to the parking brake's linkage.
Important Considerations:
* Safety First: Working on brakes requires caution. Improper repair can lead to serious injury or accidents.
* Repair Manual: A repair manual specific to your 1997 Jeep Wrangler is essential. It will provide diagrams, torque specifications, and detailed step-by-step instructions.
* Tools: You will need basic hand tools (sockets, wrenches, screwdrivers), possibly specialized tools for brake work (C-clamp for brake drums, etc.), and potentially a cable lubricant.
* Professional Help: If you're not comfortable working on brakes, take your Jeep to a qualified mechanic. Brake repair is crucial for safety.
This information is for general guidance only. It's crucial to consult a repair manual and/or a professional mechanic for accurate and safe repair procedures specific to your 1997 Jeep Wrangler. Improper brake repair can be dangerous.
