Hydraulic System Pressure Test
- With engine off, disconnect pressure hose from pump. Install Power Steering Tester (J-5176-D) between power steering pump and steering unit. See Fig 1 .
- Bleed system by holding gauge beneath fluid reservoir with shutoff valve open. With engine idling, check fluid level in reservoir. Refill reservoir if necessary.
- If steering system still malfunctions, start engine. Turn steering wheel from lock-to-lock several times, until fluid has reached 140° F (60° C).
- With steering wheel straight-ahead, check pressure gauge. If gauge reads more than 14.5 psi (10.0 kg/cm2 ), check flow control valve, pressure hoses and pipes for restrictions.
- Slowly close pressure gauge valve while watching pressure gauge. If fluid pressure is more than 116 psi (80 kg/cm2
) or less than 87 psi (60 kg/cm2
), inspect relief pressure valve, pressure hose and pipes for restrictions. Open pressure gauge valve.CAUTION: DO NOT leave shutoff valve closed more than 15 seconds, as it may cause damage to pump.
- Hold engine speed at 1500 RPM and check pressure gauge reading. If pressure reading is less than 87 psi (60 kg/cm2 ), inspect spool valve for restrictions.