Hydraulic Brake Booster Assembly
All M/L models have a hydraulic booster. The hydraulic booster provides power assist using fluid pressure from the power steering pump. The booster assembly is located on the left front cowl. The master cylinder mounts onto the booster assembly.
Power Steering Pump
The power steering pump supplies the hydraulic pressure needed to operate the brake booster. The pump is belt-driven. The pump mount to the engine. The pump provides a continuous fluid flow to the booster, when the engine is running.
Pipes, Hoses, and Fittings
Three flexible hoses route power steering fluid through the hydraulic booster system.
| • | One hose supplies pressurized fluid from the power steering pump to the booster. |
| • | A second hose routes pressurized fluid from the booster to the power steering gear. |
| • | The third hose routes fluid through the power steering pump mounted under the radiator. |
When hoses are removed or replaced, they must be installed to their original positions. Any tie-wraps or insulators that are removed should also be returned to their original positions. Failure to do so may cause damage to the hoses or unwanted noise, vibration, and harshness in the passenger compartment.
Flushing the Hydraulic Booster System
Flushing is required when the fluid in the power steering/hydraulic booster system becomes contaminated. Contaminated fluid in the booster system can cause rubber deterioration. This involves draining the old fluid and replacing it with clean fluid.
