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Hydraulic System

NOTE: If pressure is less than 1100 psi (77.5 kg/cm2 ) at idle but increases with engine speed, problem is either a defective pump control valve or internal leakage in rack and pinion.

Connect a 1500 psi (100 kg/cm2 ) pressure gauge to power steering pump pressure line. See Fig 1 . Start engine, and let it idle. Turn steering to full lock. Exert pressure on steering gear. Pressure should be 1100-1200 psi (77.5-84.4 kg/cm2 ).

Fig 1: Connecting Pressure Gauge & Shutoff Valve
G50538Courtesy of JAGUAR CARS, INC.