Q: How to inspect and replace brake hoses and lines on Toyota Land Cruiser?
A: About every six months, with the vehicle raised and supported securely on jackstands, inspect the rubber hoses connecting the steel brake lines with the front and rear brake assemblies for cracks, chafing, leaks, blisters, and other damage, as these are crucial parts of the brake system. Use a light and mirror for a thorough check, and replace any hose showing signs of wear. To replace the front brake hose, loosen the wheel lug nuts, raise the vehicle, and remove the wheel. At the frame bracket, hold the hose fitting with an open-end wrench and unscrew the brake line fitting from the hose, using a flare-nut wrench to avoid rounding off the corners. Remove the U-clip and E-ring, if equipped, from the female fitting at the bracket with pliers, then pass the hose through the bracket. At the caliper end, remove the banjo fitting bolt and separate the hose from the caliper, ensuring to replace the two copper sealing washers during installation. To install the new hose, connect the fitting to the caliper with the banjo bolt and copper washers, ensuring the locating lug is engaged, then tighten the bolt to the specified torque. Route the hose into the frame bracket without twisting, connect the brake line fitting, install the clip and E-ring if equipped, and tighten the fitting securely. Afterward, bleed the caliper, install the wheel and lug nuts, lower the vehicle, and tighten the lug nuts to the specified torque. For the rear brake hose, repeat the removal and installation process, ensuring to bleed the wheel cylinder or caliper. When replacing metal brake lines, use the correct parts, avoiding copper tubing, and purchase steel brake lines from a dealer or auto parts store. Prefabricated brake lines with flared tube ends and installed fittings are available, but may need to be bent to the proper shape using the old line as a pattern. Ensure the new line is securely supported in the brackets with adequate clearance from moving or hot components. After installation, check the master cylinder fluid level, add fluid as necessary, bleed the brake system, and test the brakes carefully before driving.