Fluid Pressure Check

INSPECTION OF FLUID PRESSURE 

1. Assemble SST (0K201 323 AA1A)  as shown in figure, and tighten its fittings.

   Tightening torque: 29-36 lb.ft (39-49 N.m, 4-5 kg.m) 

   Fig 1: Assembling Fluid Pressure Tool

   Courtesy of KIA MOTORS AMERICA, INC.
2. Disconnect high-pressure hose from pump, and connect SST (0K210 323 AA1A)  between hose and pump.
   NOTE: Before disconnecting hose, place marks at connections for proper reinstallation.
3. Bleed air from system.
4. Open gauge valve fully. Start engine and turn steering wheel fully left and right to raise fluid temperature to 122-140°F (50-60°C)  .
   Fig 2: Opening Gauge

   Courtesy of KIA MOTORS AMERICA, INC.
   NOTE: If valve is left closed for more than 15 seconds, fluid temperature will increase excessively and damage oil pump.
5. Close gauge valve completely. Increase engine speed to 1,000 - 1,500 rpm  and measure fluid pressure generated by power steering pump. If pressure is below specification, replace power steering pump assembly.

   Power steering pump fluid pressure: 1067-1138 psi (7358-7848 kPa, 75.0-80.0 kg/cm ²  ) 

   Fig 3: Measuring Power Steering Pump Fluid Pressure

   Courtesy of KIA MOTORS AMERICA, INC.
6. Open gauge valve fully and again increase engine speed to 1,000 - 1,500 rpm  .
7. Turn steering wheel fully to left and right and measure fluid pressure generated by gear housing. If pressure is below specifications, replace gear housing assembly.

   Gear housing fluid pressure: 1067-1138 psi (7358-7848 kPa, 75.0-80.0 kg/cm ²  ) 

   NOTE: If steering wheel is kept in fully turned position for more than 15 seconds, fluid temperature will rise excessively and damage oil pump.
   Fig 4: Measuring Gear Housing Fluid Pressure

   Courtesy of KIA MOTORS AMERICA, INC.
8. Remove SST(0K210 323 AA1A)  . Replace and tighten high-pressure hose. Tighten to specified torque.

   Tightening torque: 29-36 lb.ft (39-49 N.m, 4-5 kg.m) 

9. Bleed air from system.