Here's a general outline of the process. Specific details may vary slightly depending on the exact configuration of your vehicle and the type of brake line you're installing:
1. Preparation:
* Safety First: Disconnect the negative battery terminal to prevent electrical shorts.
* Gather Tools: You'll need a variety of tools, including:
* Flare nut wrenches (appropriate sizes for your brake lines)
* Line wrench (for tightening brake lines without damaging the fitting)
* Pipe wrench (potentially, depending on line access)
* Brake line tubing cutter
* Double flaring tool (if you need to flare the new line)
* New brake line (ensure it's the correct length and diameter for your vehicle)
* Brake fluid
* Wheel chocks (to secure the vehicle)
* Jack and jack stands (to safely lift the vehicle)
* Rags or shop towels
* Safety glasses and gloves
2. Removing the Old Brake Line:
* Locate the damaged section: Identify the portion of the brake line that needs replacing.
* Access the line: This likely involves removing parts of the underbody or wheel well to gain access to the brake line. Consult a repair manual for your specific vehicle model to determine the best approach.
* Disconnect the fittings: Carefully loosen and remove the brake line fittings at both ends of the damaged section using the appropriate flare nut wrenches. Be prepared for brake fluid to leak out. Protect surrounding components from fluid damage.
* Remove the old line: Once the fittings are disconnected, carefully remove the old brake line.
3. Installing the New Brake Line:
* Prepare the new line: If necessary, use the tubing cutter to cut the new brake line to the correct length. Carefully double flare the ends of the new brake line using a double flaring tool. This ensures a proper seal.
* Install the new line: Carefully route the new brake line along the original path, ensuring it's properly secured and doesn't interfere with any moving parts. Consider using clamps or clips to secure the line where necessary.
* Connect the fittings: Connect the new brake line fittings to the corresponding components. Tighten the fittings carefully and securely using a line wrench to avoid damaging the flares.
4. Bleeding the Brakes:
* Reattach the brake lines: After ensuring all connections are secure, carefully reattach any components that were removed for access.
* Bleed the brake system: This is absolutely essential to remove air from the brake lines. You'll need to bleed the brakes at each wheel, typically using a brake bleeder kit and a helper to pump the brake pedal. Consult your repair manual for the correct bleeding order. This process ensures that the brakes are firm and functional.
* Check for leaks: After bleeding the brakes, carefully inspect all connections for any leaks. If you find a leak, you'll need to tighten the fitting or replace the section of the line.
5. Final Checks:
* Test the brakes: Once you're satisfied that there are no leaks, lower the vehicle and carefully test the brakes. The brakes should feel firm and responsive.
* Road test: Take the vehicle for a short road test to ensure the brakes are working correctly under various conditions.
Important Considerations:
* Repair Manual: A repair manual specific to your 1997 Oldsmobile LSS is invaluable. It will provide detailed diagrams, torque specifications, and step-by-step instructions.
* ABS System: If your vehicle has an Anti-lock Braking System (ABS), bleeding the brakes might be more complex. Consult a repair manual for specific instructions.
* Professional Assistance: If you're not comfortable performing this repair, take your vehicle to a qualified mechanic. Brake repair is critical for safety.
This is a general overview. Always consult a repair manual specific to your vehicle for detailed instructions and safety precautions. Improper brake repair can be dangerous. If in doubt, seek professional help.
