However, if you're determined to tackle it yourself, here's a general outline. Remember this is a general guide; specifics vary depending on your Suburban's exact configuration (e.g., drum brakes vs. disc brakes). Consult a repair manual specific to your 1995 Chevy Suburban for detailed instructions and diagrams.
1. Identify the Leak:
* Locate the source: Carefully inspect the entire rear brake system. Common leak points include:
* Wheel cylinders: These are on the back of the brake drum (drum brakes) or integrated into the caliper (disc brakes). Look for fluid dripping or weeping.
* Brake lines: Inspect the metal brake lines running from the wheel cylinder/caliper to the brake hose, and the rubber brake hoses themselves. Look for rust, cracks, or bulges.
* Flexible brake hoses: These are particularly prone to cracking and deterioration over time.
* Proportioning valve: This valve is usually located near the master cylinder and regulates brake pressure between the front and rear brakes.
* Check the brake fluid level: A low fluid level is a strong indication of a leak somewhere in the system.
2. Gather Necessary Parts and Tools:
* Repair manual: Absolutely essential for specific instructions and torque specifications.
* Wheel chocks: To prevent the vehicle from rolling.
* Jack and jack stands: Properly secure the vehicle.
* Wrench set: Metric and possibly SAE, depending on your Suburban.
* Sockets and ratchet: Various sizes.
* Brake fluid: DOT 3 or DOT 4, specified in your owner's manual.
* Replacement parts: This depends on what's leaking. You might need new wheel cylinders, brake hoses, brake lines, or a caliper. Get OEM or high-quality replacement parts.
* Clean rags or shop towels: To absorb brake fluid.
* Gloves: Brake fluid is corrosive.
* Brake cleaner: To clean parts thoroughly.
* C-clamp (potentially): For compressing the brake piston (if replacing wheel cylinders or calipers).
3. Repair Process (General Outline):
* Safety First: Always engage the parking brake and use wheel chocks. Raise the vehicle securely using a jack and jack stands.
* Wheel Removal: Remove the wheel to access the brake assembly.
* Brake Line Disconnection: Carefully disconnect the brake line from the leaking component. Be prepared for some fluid to spill.
* Component Removal and Replacement: This is highly dependent on whether you have drum brakes or disc brakes and the specific location of the leak. This is where your repair manual is crucial. You might need to:
* Replace a wheel cylinder (drum brakes): This involves carefully removing the old cylinder, cleaning the area, installing new seals and pistons, and installing the new cylinder. You'll likely need a c-clamp to compress the piston to accommodate the new cylinder.
* Replace a caliper (disc brakes): This involves removing the caliper, cleaning, and replacing seals or the entire caliper.
* Replace brake lines or hoses: This typically involves cutting and flaring the lines or carefully replacing the hoses.
* Reassembly: Carefully reassemble everything, following your repair manual. Pay close attention to torque specifications.
* Bleeding the Brakes: After replacing any component that involves opening the brake system, you must bleed the brakes to remove air bubbles. This is typically done by opening the bleeder valves on each wheel while someone pumps the brake pedal.
* Test Drive: After bleeding the brakes, test drive the vehicle carefully to ensure the brakes are working properly.
Again, this is a highly simplified overview. Improper brake repair can lead to serious injury or death. If you're unsure about any step, consult a professional mechanic. The cost of professional repair is far less than the potential cost of an accident.
