Fluid Level Check
The master cylinder - located in the left rear section of the engine compartment - consists of an aluminum body and a reservoir with minimum fill indicators. The fluid level of the reservoirs should be kept near the top of the observation windows.
Any sudden decrease in the fluid level indicates a possible leak in the system and should be checked out immediately.
Fluid Recommendations & Fill
When adding or replacing the brake fluid, always use a top quality fluid, such as DOT-3. DO NOT allow the brake fluid container or master cylinder reservoir to remain open for long periods; brake fluid absorbs moisture from the air, reducing its effectiveness and causing corrosion in the lines.
Removal & Installation
- Disconnect the negative battery cable.
- Depress the brake pedal several times to exhaust all vacuum in the power brake booster.
- Remove and plug the brake lines from the primary and secondary outlet ports of the master cylinder.
- Detach the brake warning indicator switch connector.
- If equipped with ABS and traction assist, remove 2 bolts retaining the proportioning valve bracket to the master cylinder. Secure the proportioning valve and brake lines in a position to prevent damage or loss of brake fluid.
- Remove 2 nuts retaining the brake master cylinder to the power brake booster assembly.
- Slide the master cylinder forward and upward from the vehicle and remove.
- If replacing the brake master cylinder, bench bleed the master cylinder before installation.
- Install the brake master cylinder to the power brake booster mounting studs and install 2 retaining nuts. Torque the nuts to 16-21 ft. lbs. (21-29 Nm).
- If equipped with ABS and traction assist, place the proportioning valve bracket in position and install 2 retaining bolts. Torque the bolts to 14-19 ft. lbs. (19-26 Nm).
- Unplug and install the primary and secondary brake lines to the brake master cylinder outlet ports. Torque the brake line fittings to 10-15 ft. lbs. (14-20 Nm).
- Reconnect the brake warning indicator switch connector.
- Properly bleed the brake system using clean DOT 3 or equivalent, brake fluid from a closed container.
- Fill the master cylinder reservoir to the proper level.
- Operate the brakes several times, then check for external hydraulic leaks.
- Reconnect the negative battery cable.
- If equipped with air suspension, turn the air suspension switch to the ON position, if disabled.
- Road test the vehicle and check the brake system for proper operation.