Here's a general outline of the process. Specifics will vary depending on the Malibu's year and model. Always consult a repair manual specific to your vehicle's year and model for detailed instructions and diagrams. A Haynes or Chilton manual is a good investment.
Tools You'll Likely Need:
* Wrench set (metric): Various sizes, likely including 10mm, 11mm, 12mm, and 13mm.
* Open-end wrenches: These can be helpful in tight spaces.
* Socket set (metric): A ratchet and sockets will make the job easier.
* Line wrench: To avoid damaging the brake lines. This is essential.
* Flare nut wrench: Specifically designed for brake lines.
* Brake line tubing cutter: To cleanly cut the old lines.
* Double flare tool: To create the correct flare on the new brake line ends. (Unless you buy pre-flared lines)
* New brake lines: Purchase lines that are the correct length and diameter for your Malibu.
* Brake fluid: DOT 3 or DOT 4, as specified in your owner's manual.
* Bleeder wrench: For bleeding the brakes.
* Clear tubing and container: For collecting brake fluid during bleeding.
* Jack and jack stands: To safely lift and support the vehicle.
* Wheel chocks: For added safety.
* Gloves: To protect your hands.
* Safety glasses: To protect your eyes.
* Shop rags: To clean up spills.
General Steps:
1. Safety First: Park on a level surface, engage the parking brake, and chock the rear wheels. Wear safety glasses and gloves.
2. Raise and Support the Vehicle: Safely lift the vehicle using a jack and secure it on jack stands.
3. Locate the Brake Lines: Identify the front brake lines running from the master cylinder to the calipers.
4. Disconnect the Old Lines: Carefully disconnect the old brake lines at the connections using the appropriate wrenches. Use line wrenches to prevent damage to the lines. Be prepared for brake fluid to leak. Have rags ready to soak it up.
5. Remove the Old Lines: Carefully remove the old brake lines. Note their routing and any clips or brackets that hold them in place.
6. Prepare the New Lines: If necessary, cut the new brake lines to the correct length using a tubing cutter and flare the ends using a double flare tool. Ensure the flares are properly formed. Pre-flared lines will save this step.
7. Install the New Lines: Carefully route the new brake lines, following the path of the old lines. Secure them with any clips or brackets that were used for the old lines.
8. Connect the New Lines: Connect the new brake lines to the master cylinder and calipers, ensuring tight connections. Use line wrenches.
9. Lower the Vehicle: Carefully lower the vehicle from the jack stands.
10. Bleed the Brakes: This is crucial. Follow the correct bleeding procedure for your Malibu to remove air from the brake lines. This usually involves opening the bleeder valve on each caliper while an assistant pumps the brake pedal. Refer to your repair manual for the correct bleeding sequence.
11. Test the Brakes: After bleeding, carefully test the brakes in a safe area, away from traffic.
Important Considerations:
* Brake Fluid is Corrosive: Protect painted surfaces and avoid skin contact. Flush any spills immediately.
* Bleeding is Essential: Air in the brake lines can significantly reduce braking performance or cause complete brake failure.
* Consult a Repair Manual: This is a simplified overview. A repair manual specific to your vehicle is essential for precise instructions and torque specifications.
* Professional Help: If you are uncomfortable with any aspect of this repair, seek professional help from a qualified mechanic. Brake system failure can be extremely dangerous.
This information is for guidance only. Improper repair can lead to serious injury or death. Always prioritize safety and seek professional assistance if needed.
