If it is known that only one system has air in it, only that system has to be bled since the front and rear hydraulic systems are independent.
- Fill the master cylinder with brake fluid.
- Install a 3 / 8 in. box-end wrench on the bleeder screw on the right, rear wheel.
- Push a piece of small-diameter rubber tubing over the bleeder screw until it is flush against the wrench. Submerge the other end of the rubber tubing in a glass jar partially filled with clean brake fluid. Make sure the rubber tube fits on the bleeder screw snugly or you may get sprayed with brake fluid when the bleeder screw is opened.
- Have an assistant apply pressure to the brake pedal. Open the bleeder screw and observe the bottle of brake fluid. If bubbles appear in the glass jar, it indicates there is air in the system. When the assistant has pushed the pedal to the floor, immediately close the bleeder screw before your helper releases the brake pedal.
- Repeat this procedure until no bubbles appear in the jar. Refill the master cylinder.
- Repeat this procedure on the left rear, right front, and left front wheels, in that order. Periodically refill the master cylinder so that it does not run dry.
- If the brake warning light is on, depress the brake pedal firmly. If there is no air in the system, the light will go out.