Caution: Brake fluid may be irritating to the skin or the eyes, or may cause
nausea, vomiting, or diarrhea if swallowed. In case of contact or swallowing
take the following actions:
• Eye contact - rinse thoroughly with water • Skin contact - wash with soap and water • If swallowed - Contact a physician immediately. Give
two glasses of water and induce vomiting by sticking fingers down the throat.
Notice: Avoid spilling brake fluid on any of the vehicle's painted surfaces, wiring, cables, or electric connectors. Brake fluid will damage the paint and the electrical connections. If any fluid is spilled on the vehicle, flush the area to lessen the damage.
Important:
• Only use Delco Supreme 11 Brake Fluid GM P/N 12377967, or equivalent
DOT-3 Brake fluid. • Do not use power steering or transmission fluid in the brake system. • Do not re-use brake fluid accumulated during the brake system
bleeding. • Always store the brake fluid in a closed container. Re-seal the
brake fluid containers immediately after use. Do not use brake fluid left
in an open or improperly sealed container. The fluid absorbs moisture or
can become contaminated. • The brake fluid may begin to boil if any of the following liquids
are present: - Improper brake fluid - Mineral oil - Power steering fluid - Transmission fluid - Water • The rubber components in the brake hydraulic system could deteriorate
if any of the following liquids are present: - Improper brake fluid - Mineral oil - Power steering fluid - Transmission fluid - Water • If the master cylinder cap diaphragm is swollen, then the rubber
parts have deteriorated. This deterioration may also be evidenced by swollen
wheel cylinder boots and caliper boots. Refer to
Hydraulic Brake System Flushing
. • If the deterioration of the rubber parts is evident, disassemble
all of the serviceable hydraulic components. Refer to
Master Cylinder Overhaul
and wash using denatured
alcohol. Dry these parts with non-lubricated compressed air before assembly
to keep alcohol out of the system, including hoses and non-serviceable hydraulic
components. • Refill the brake system using new brake fluid. Flush and bleed
the system. Refer to
Hydraulic Brake System Bleeding
.
- Inspect for a cracked master cylinder casting or brake fluid around the master cylinder. Leaks are indicated even if there is only a drop of fluid. A damp condition is not abnormal.
- Inspect for a binding pedal linkage. If the pedal linkage is satisfactory, disassemble the master cylinder. Inspect the master cylinder for a swollen or elongated primary piston seal(s). Swollen seals indicate substandard or contaminated brake fluid. If the brake fluid is contaminated perform the following steps:
| 2.1. | Disassemble and clean all of the components |
| 2.2. | Replace all rubber components |
| 2.3. | Flush all pipes |
