Here's a general outline of the process; specifics might vary slightly depending on the exact location of the leak:
1. Safety First:
* Disconnect the negative battery terminal. This prevents accidental electrical shorts.
* Gather your tools: You'll need wrenches (likely metric), flare nut wrenches (to avoid damaging brake lines), a tubing cutter, a double-flare tool (or a flaring tool if you're using pre-flared fittings), brake line bender (optional, but helpful), new brake line sections (matching the original's diameter and material), new brake fluid, a clean container to catch old fluid, safety glasses, and gloves. A shop rag or two will also be useful.
* Raise and secure the vehicle: Use jack stands properly positioned under the vehicle's frame, never rely solely on a jack.
* Block the front wheels. This prevents the car from rolling.
2. Locating and Assessing the Damage:
* Carefully inspect the entire rear brake line system to pinpoint the leak. Look for rust, corrosion, kinks, or damage. Take photos if it helps.
* Determine the section of line that needs replacement. You may need to replace only a short section, or a longer portion depending on the damage.
3. Removing the Damaged Section:
* Drain brake fluid: Before disconnecting any lines, slightly loosen the bleeder valve at the rear caliper (or wheel cylinder if you have drums) to relieve pressure in the system. Then, fully open the bleeder valve and collect the fluid as you loosen the line fittings. Be careful; brake fluid is corrosive.
* Disconnect the brake lines: Use flare nut wrenches to carefully loosen and remove the fittings connecting the damaged section. You may need to use penetrating oil if the connections are seized.
* Cut out the damaged section: Carefully cut the damaged section of the brake line using a tubing cutter. Make sure the cuts are clean and square.
4. Installing the New Line:
* Measure and cut: Measure the length of the new brake line section needed to replace the damaged portion, adding a small amount for adjustment. Cut the new line to the correct length.
* Flare the ends (if necessary): If you're not using pre-flared fittings, use a double-flare tool to create the necessary flare on both ends of the new line. This creates a proper seal.
* Bend the new line (if necessary): If the original line had bends, carefully replicate them using a brake line bender to maintain proper routing and clearance.
* Connect the new line: Connect the new brake line section to the existing lines, carefully tightening the fittings with flare nut wrenches. Don't overtighten!
* Bleed the brakes: Once everything is connected, bleed the rear brakes to remove any air that might have entered the system during the repair. This requires two people: one to pump the brake pedal and another to open and close the bleeder valves at each wheel. Consult your owner's manual or a repair manual for the proper bleeding procedure.
5. Test and Inspect:
* Lower the vehicle: Carefully lower the vehicle from the jack stands.
* Test the brakes: Before driving, test the brakes several times to ensure they're functioning correctly.
* Inspect for leaks: Carefully inspect all connections for any leaks.
Important Considerations:
* Brake fluid is corrosive: Clean up any spills immediately.
* Proper flaring is crucial: Improperly flared lines can lead to leaks and brake failure.
* Consult a repair manual: A repair manual specific to your 1995 Ford Contour will provide detailed diagrams and instructions.
* ABS System: If your Contour has an Anti-lock Braking System (ABS), the repair might be more complex, and professional assistance is highly recommended.
This is a simplified explanation. The actual process can be significantly more involved and require specialized tools and knowledge. Again, if you're not comfortable performing this repair, take your car to a qualified mechanic. Brake failure is extremely dangerous.
