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An automotive hydraulic system including pump, power steering gear, fan, and Active Hydraulic Suspension (AHS) is modeled and validated through bench testing. A Computer Aided Engineering (CAE) simulation capability is developed for design control of flow and pressure dynamics. The generated fluid-borne pump noise resulting from interaction with circuitry components is obtained from transfer matrix methods utilizing MATLAB and SIMULINK. Hose and tube components are modeled as continuous sections. Non-tubular components including fan, AHS, gear, and cooler are treated as lumped sections with point transfer functions. The reservoir is represented by low pressure termination points from entrance lines. Impedance at these points is defined as the pressure-flow ratio obtained from measurements at line entrance to the reservoir. Hydraulic fan and AHS are each considered to have branched flow with discharge to both high and low pressure lines.