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SECTION 6B

POWER STEERING PUMP

SPECIFICATIONS

General Specifications

Application
Description
Lubricant
Power Steering Fluid DEXRON®-II D
Type
vain
Displacement
2.0 Diesel/3.2 V6 Engine
9.3 cc/rev
2.4 Gasoline Engine
11.3 cc/rev
Relief Pressure
≈ 86.7 kg/cm²
Capacity
0.63 Liter

Fastener Tightening Specifications

Application
N•m
Lb-Ft
Lb-In
High-Pressure Hose Fitting
28
21
-
Power Steering Pump Bolts
25
18
-
Right Side Power Steering Pump Bracket Bolts
25
18
-

DIAGNOSIS

Power Steering Pump Diagnosis

Foaming or Milky Power Steering Fluid (Air in Fluid)

Checks
Action
Check for internal leakage in the power steering pump, causing an overflow.
Repair the internal pump leakage.
Bleed the system.
Check for a low fluid level.
Repair the internal pump leakage.
Bleed the system.
Cold temperatures will cause the air bubbles in the system if the fluid level is low.

Low Pressure Due to Power Steering Pump

Checks
Action
Check for an external leakage of the power steering pump at the seals.
Replace the seals.
Repair the leak.
Bleed the system.
Check for a worn serpentine accessory drive belt.
Replace the serpentine accessory drive belt.

Low Pressure Due to Power Steering Gear

Checks
Action
Check for a scored housing bore.
Replace the housing bore.
Check for leakage at the valve rings or the seals.
Repair the leak.
Bleed the system.

Groaning Noise in the Power Steering Pump

Checks
Action
Check for air in the power steering fluid.
Perform the checks listed in "Foaming or Milky Power Steering Fluid (Air in Fluid)" above.
Check for a low level of power steering fluid.
Repair any internal or external leaks.
Bleed the system.
Check for a loose mounting of the powersteering pump.
Tighten the pump mounting to specifications.

MAINTENANCE AND REPAIR

ON-VEHICLE SERVICE


C7A16A02
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Pump Assembly (2.4 Gasoline Engine)

Removal Procedure

  1. Remove the serpentine accessory drive belt. Refer to Section 1C1, Engine Mecanical - FAM II 2.4D.
  2. Remove the air cleaner assembly. Refer to Section 1C1, Engine Mecanical - FAM II 2.4D.
  3. Position a drain pan to catch the power steering fluid that will drain from the high-pressure hose after it is disconnected from the power steering pump.
  4. Disconnect the high-pressure hose and the supply hose from the power steering pump.

    5. C7A16B01
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  5. Remove the bolt from the front right side of the power steering pump. Loosen the rear right bolt and swing the bracket out of the way.

    6. C7A16B02
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  6. Remove the two long power steering pump bolts and remove the power steering pump from the vehicle.

C7A16B02
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Installation Procedure

  1. Install the power steering pump into the vehicle and install the two long power steering pump bolts.

    2. Tighten
    Tighten the power steering pump bolts to 25 N•m (18 lb-ft).


    C7A16B01
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  2. Swing the power steering pump bracket down and install the front right side bolt.

    3. Tighten
    Tighten both of the right side power steering pump bracket bolts to 25 N•m (18 lb-ft).

  3. Connect the supply hose to the power steering pump.

    4. C7A16A02
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  4. Connect the high-pressure hose fitting to the power steering pump.

    5. Tighten
    Tighten the high-pressure hose fitting to 28 N•m (21 lb-ft).

  5. Install the air cleaner assembly. Refer to Section 1C1, Engine Mecanical - FAM II 2.4D.
  6. Install the serpentine accessory drive belt. Refer to Section 1C1, Engine Mecanical - FAM II 2.4D.
  7. Refill the power steering fluid. Refer to Section 6A, Power Steering System.
  8. Bleed the power steering system. Refer to Section 6A, Power Steering System.

C7A16A10
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Pump Assembly (2.0 Diesel Engine)

Removal Procedure

  1. Remove the serpentine accessory drive belt. Refer to Section 1B, Engine Mecanical - 2.0 Diesel Engine.
  2. Remove the engine beauty cover. Refer to Section 1B, Engine Mecanical - 2.0 Diesel.
  3. Position a drain pan to catch the power steering fluid that will drain from the high–pressure hose after it is disconnected from the power steering pump.

  4. Disconnect the high–pressure hose and the supply hose from the power steering pump.

    5. C7A16B03
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  5. Remove the three power steering pump bolts through the pump pulley hole and remove the powersteering pump from the vehicle.

C7A16B03
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Installation Procedure

  1. Install the power steering pump into the vehicle and install the power steering pump bolts.

    2. Tighten
    Tighten the power steering pump bolts to 25 N•m (18 lb-ft).


    C7A16A10
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  2. Connect the supply hose to the power steering pump.
  3. Connect the high–pressure hose fitting to the power steering pump.

    4. Tighten
    Tighten the high–pressure hose fitting to 28 N•m (21 lb-ft).


    C7A52B31
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  4. Install the engine beauty cover. Refer to Section 1B, Engine Mecanical-2.0 Diesel.
  5. Install the serpentine accessory drive belt. Refer to Section 1B, Engine Mecanical-2.0 Diesel Engine.
  6. Refill the power steering fluid. Refer to Section 6A, Power Steering System.
  7. Bleed the power steering system. Refer to Section 6A, Power Steering System.

C7A19R18
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Pump Assembly (3.2 Gasoline Engine)

Removal Procedure

  1. Remove the serpentine accessory drive belt. Refer to Section 1C2, Engine Mecanical - HFV6 3.2L.
  2. Remove the engine front shield. Refer to Section 9R, Body Front End.

    3. C7A16A16
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  3. Position a drain pan to catch the power steering fluid that will drain from the high–pressure hose after it is disconnected from the power steering pump.
  4. Disconnect the high–pressure hose and the supply hose from the power steering pump.

    5. C7A16B04
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  5. Remove the two power steering pump bolts through the pump pulley hole and remove the power steering pump from the vehicle.

C7A16B04
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Installation Procedure

  1. Install the power steering pump into the vehicle and install the power steering pump bolts.

    2. Tighten
    Tighten the power steering pump bolts to 25 N•m (18 lb-ft).


    C7A16A16
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  2. Connect the supply hose to the power steering pump.
  3. Connect the high–pressure hose fitting to the power steering pump.

    4. Tighten
    Tighten the high–pressure hose fitting to 28 N•m (21 lb-ft).


    C7A21CJ2
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  4. Install the engine front shield. Refer to Section 9R, Body Front End.
  5. Install the serpentine accessory drive belt. Refer to Section 1C2, Engine Mecanical - HFV6 3.2L.
  6. Refill the power steering fluid. Refer to Section 6A, Power Steering System.
  7. Bleed the power steering system. Refer to Section 6A, Power Steering System.

GENERAL DESCRIPTIONAND SYSTEM OPERATION

Power Steering Pump

The power steering pump is a multivaned hydraulic pump.
The serpentine accessory drive belt on the engine drives the power steering pump.
The power steering pump provides the hydraulic pressure to the power steering gear.
The power steering gear uses the hydraulic pressure to assist in steering the vehicle.
The power steering system uses a remote reservoir in order to make available more space in the engine compartment.


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