Caution: Always use double-walled steel brake pipe when replacing brake pipes. The use of any other pipe is not recommended and may cause brake system failure. Carefully route and retain replacement brake pipes. Always use the correct fasteners and in the original location for replacement brake pipes. Failure to properly route and retain brake pipes may cause damage to the brake pipes and brake system resulting in personal injury.

Important: Brake pipes that run parallel to each other must maintain a 6 mm (1/4 in) clearance.

1. Disconnect the brake pipe fittings.
2. Remove the brake pipe fasteners from the vehicle.
3. Remove the brake pipe from the vehicle.

1. Remove 1/4 inch of the protective coating before flaring the end of the brake pipe.
2. Bend the brake pipe to achieve proper fit.
3. Install the brake pipe to the vehicle. Maintain a clearance of 19 mm (3/4 in) for all moving or vibrating components.
4. Install the brake pipe fasteners to the vehicle.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Important: After tightening the brake pipe fittings to the proper specification, apply a small amount of silicone sealant to the area where the brake pipe meeting the brake pipe fitting.

Tighten
Connect the brake pipe fittings.

•	Tighten the brake pipe fittings to the BPMV or the wheel jounce hoses to 20 N·m (15 lb ft).

•	Tighten the brake pipe fittings to the master cylinder to 30 N·m (22 lb ft).

•	Tighten the brake pipe fittings to the brake hose fitting to 20 N·m (20 lb ft).

5. Bleed the brake hydraulic system. Refer to one of the following procedures:

•	If the brake pipe that was replaced was between the master cylinder and the BPMV, refer to in Antilock Brake System.

•	If the brake pipe that was replaced was between the BPMV and the wheel jounce hoses, refer to .