About every six months, the vehicle should be raised and placed securely on jackstands to inspect the flexible hoses which connect the steel brake lines with the front and rear brake assemblies. These hoses should be checked for cracks, chafing of the outer cover, leaks, blisters and other damage using a light and mirror. If any defects are found, the hose should be replaced. To replace a hose, first clean all dirt away from the ends of the hose. Then, disconnect the brake line from the hose fitting, being careful not to bend the frame bracket or line. Remove the U-clip from the female fitting at the bracket and remove the hose from the bracket. If removing a rear brake hose, disconnect the hose from the caliper, discarding the copper washer unit from both sides of the fitting. Pass the female fitting through the frame or frame bracket and install the fitting with the least amount of twist in the hose. The weight of the vehicle must be on the suspension during this process. Install the U-clip in the female fitting at the frame bracket and attach the brake line to the hose fitting, tightening the tube nut securely. Check to make sure the suspension or steering components don't make contact with the hose. Bleed the brake system. When replacing brake lines, use the correct parts and don't use copper tubing. Prefabricated brake lines are available and can be bent to the proper shape using a tube bender. After installation, check the master cylinder fluid level and add fluid as necessary. Bleed the brake system and test the brakes carefully before placing the vehicle into normal operation.
Posted by ToyotaPartsDeal Specialist