SsangYong Korando II (1996-2006 year). Manual - part 366

SECTION 6B

POWER STEERING PUMP

TABLE OF CONTENTS

Description and Operation ................................... 6B-2

General Description ............................................. 6B-2

Diagnostic Information and Procedures .............. 6B-3

Power Steering Pump Diagnosis .......................... 6B-3

Repair Instructions ................................................ 6B-4

On-Vehicle Service ................................................. 6B-4

Serpentine Accessory Drive Belt .......................... 6B-4

Power Steering Pump Assembly .......................... 6B-4

Unit Repair ............................................................ 6B-6

Pump .................................................................. 6B-6

Specifications ....................................................... 6B-7

Fastener Tightening Specifications ....................... 6B-7

SSANGYONG MY2002

6B-2  POWER STEERING PUMP

DESCRIPTION AND OPERATION

GENERAL DESCRIPTION

The power steering pump is a multivaned hydraulic
pump. The serpentine accessory drive belt on the en-
gine drives the power steering pump. The power steer-
ing pump provides the hydraulic pressure to the power
steering gear.

The power steering gear uses the hydraulic pressure
to assist in steering the vehicle.

When steering conditions exceed maximum pressure
requirements, such as when the wheels are turned
against the stops, the pressure built up in the steering

gear exerts pressure on the spring end of the flow
control valve. The high pressure lifts the relief valve
ball from its seat and allows oil to flow through a trigger
orifice located in the outlet fitting. This reduce pressure
on the spring end of the flow control valve which then
opens and allows the oil to return to the intake side of
the pump. This action limits maximum pressure output
of the pump to a safe level.

No repair procedures are to be done on the internal
components of the power steering pump. The only ser-
viceable components of the power steering pump are
the power steering pump pulley and the pump itself.

POWER STEERING PUMP  6B-3

SSANGYONG MY2002

DIAGNOSTIC INFORMATION AND PROCEDURES

POWER STEERING PUMP DIAGNOSIS

Foaming or Milky Power Steering Fluid (Air in Fluid)

Low Pressure Due to Power Steering Pump

Check for a scored housing bore.

Check for leakage at the valve rings or the seals.

Checks

Action

Replace the housing bore.

Repair the leak.

Bleed the system.

Low Pressure Due to Power Steering Gear

Check for internal leakage in the power steering pump,

causing an overflow.

Clean for a low fluid level.

Checks

Action

Repair the internal pump leakage.

Bleed the system.

Repair the internal pump leakage.

Bleed the system.

Cold temperatures will cause the air bubbles in the

system if the fluid level is low.

Check for an external leakage of the power steering

pump at the seals.

Check for a worn serpentine accessory drive belt.

Checks

Action

Replace the seals.

Repair the leak.

Bleed the system.

Replace the serpentine accessory drive belt.

Check for air in the power steering fluid.

Check for a low level of power steering fluid.

Check for a loose mounting of the power steering pump.

Checks

Action

Perform the checks listed in “Foaming or Milky Power

Steering Fluid (Air in Fluid)” above.

Repair any internal or external leaks.

Bleed the system.

Tighten the pump mounting to specifications.

Groaning Noise in the Power Steering Pump

SSANGYONG MY2002

6B-4  POWER STEERING PUMP

KAA6B010

REPAIR INSTRUCTIONS

ON-VEHICLE SERVICE

SERPENTINE ACCESSORY DRIVE
BELT

Removal and Installation Procedure

1. Remove the electric cooling fan. Refer to Section

1D, Engine Cooling.

2. Use a wrench to turn the tensioner bolt clockwise,

compressing the tensioner, and releasing the
tension on the serpentine accessory drive bolt.

KAA6B020

3. Remove the serpentine accessory drive belt.