Service Precautions

CAUTION: When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.

CAUTION: Some operations in this section require that hydraulic lines, hoses and fittings be disconnected for inspection testing and replacement purposes. This brake system uses a hydraulic accumulator which, when fully charged, contains brake fluid at high pressure. Before disconnecting any hydraulic lines, hoses or fittings, be sure that the accumulator is fully depressurized. Failure to depressurize the hydraulic accumulator may result in personal injury.

CAUTION: The use of rubber hoses or parts other than those specified for the anti-lock brake system may lead to functional problems requiring major overhaul. Replace all components included in repair kits used to service this system. Lubricate rubber parts with clean, fresh brake fluid to ease assembly. Do not use lubricated shop air on brake parts as damage to rubber components may result. If any hydraulic component is removed or brake line disconnected, it may be necessary to bleed all or part of the brake system. The torque values specified are for dry, unlubricated fasteners.

CAUTION: Certain components in the anti-lock brake system are not intended to be serviced individually. Attempting to remove or disconnect certain system components, such as the hydraulic accumulator and valve block, may result in personal injury and/or improper system operation. Only those components with approved removal and installation procedures in REMOVAL & INSTALLATION should be serviced.

CAUTION: When servicing brake parts, do not create dust by grinding, sanding brake linings, or by cleaning wheel brake parts with a dry brush or compressed air. Many brake parts contain asbestos fibers which can become airborne if dust is created during servicing. Breathing dust containing asbestos fibers may cause serious bodily harm. A water dampened cloth or water based solution should be used to remove any dust on brake parts. Equipment is commercially available to perform this washing function. These wet methods will prevent asbestos fibers from becoming airborne.

CAUTION: Brake fluid may irritate eyes and skin. In case of contact, take the following actions: Eye contact - rinse thoroughly with water. Skin contact - wash with soap and water.

NOTE: Avoid spilling brake fluid on any of the vehicle's painted surfaces, wiring, cables or electrical connectors. Brake fluid will damage paint and electrical connections. If any fluid is spilled on the vehicle, flush the area with water to lessen the damage.

NOTE: The prevailing torque bolts which attach the caliper mounting bracket to the front and rear knuckles must be replaced any time they become loose or are removed. In this application, tightening or loosening these special prevailing torque bolts, which use an encapsulated thread locking compound, is not recommended. Failure to replace the caliper mounting bracket bolts after they have been loosened or removed may result in loosening of the caliper to knuckle attachment, causing Reduced vehicle braking ability. See DISC BRAKE article for more information.