2005 NISSAN NAVARA power steering fluid

CHASSIS AND BODY MAINTENANCE
MA-37
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MA
B
MA
LINING
lCheck for lining thickness.
Checking Steering Gear and LinkageELS001J3
STEERING GEAR
lCheck the steering gear housing for looseness, damage and oil
leakage as shown.
lCheck the steering column connections for looseness.
STEERING LINKAGE
lCheck the ball joint, dust cover and other component parts for looseness, wear, damage and grease leak-
age.
Checking Power Steering Fluid and LinesELS001J4
CHECKING FLUID LEVEL
lCheck the power steering fluid level with the engine off.
lCheck fluid level on reservoir. Use “HOT” range at fluid tempera-
tures of 50°to 80°C(122°to 176°F). Use “COLD” range at fluid
temperatures of 0°to 30°C(32°to 86°F).
CAUTION:
lDo not overfill.
lFill with the recommended fluid or equivalent. Refer toMA-
14, "Fluids and Lubricants".
CHECKING LINES
lCheck lines for improper attachment, leaks, cracks, damage,
loose connections, chafing and deterioration.Standard thickness : 5.5 mm (0.22 in)
Repair limit thickness : 1.5 mm (0.66 in)
SBR021A
SGIA0506E
LGIA0021E
SGIA0506E

PG-68
HARNESS
Wiring Diagram Codes (Cell Codes)
EKS00LJ9
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
Code Section Wiring Diagram Name
A/C,A ATC Auto Air Conditioner
A/C,M MTC Manual Air Conditioner
ABS BRC Anti-lock Brake System
APP1PW EC Accelerator Pedal Position Sensor 1 Power
APP2PW EC Accelerator Pedal Position Sensor 2 Power
APPS1 EC Accelerator Pedal Position Sensor 1
APPS2 EC Accelerator Pedal Position Sensor 2
APPS3 EC Accelerator Pedal Position Sensor
ASC/BS EC ASCD Brake Switch
ASC/SW EC ASCD Steering Switch
ASCBOF EC ASCD Brake Switch
ASCIND EC ASCD Indicator
AT/IND DI A/T Indicator Lamp
AUDIO AV Audio
AUTO/L LT Auto Lignt System
BACK/L LT Back-up Lamp
BOOST EC Turbocharger Boost Sensor
CAN AT CAN Communication Line
CAN EC CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
CIGER WW Cigarette Lighter
CKPS EC Crankshaft Position Sensor
CMPS EC Camshaft Position Sensor
COMBSW LT Combination Switch
COMM AV Audio Visual Communication Line
COMPAS DI Compass
COOL/F EC Cooling Fan Control
D/LOCK BL Power Door Lock
DIFLOC RFD Rear Final Drive
DEF GW Rear Window Defogger
DTRL LT Headlamp — With Daytime Running Light System
ECMRLY EC ECM Relay
ECTS EC Engine Coolant Temperature Sensor
EGRVLV EC EGR Volume Control System
EMNT EC Electronic Controlled Engine Mount Control Solenoid Valve
F/FOG LT Front Fog Lamp
F/PUMP EC Fuel Pump
FRPS EC Fuel Rail Pressure Sensor
FTS AT A/T Fluid Temperature Sensor

PS-1
POWER STEERING SYSTEM
G STEERING
CONTENTS
C
D
E
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SECTIONPS
A
B
PS
POWER STEERING SYSTEM
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS)“AIRBAG”and“SEATBELTPRE-TEN-
SIONER” .................................................................. 2
Precautions for Steering System .............................. 2
PREPARATION ........................................................... 3
Special Service Tools [SST] ..................................... 3
Commercial Service Tools ........................................ 4
NOISE, VIBRATION, AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 5
NVH Troubleshooting Chart ..................................... 5
POWER STEERING FLUID ........................................ 6
Checking Fluid Level ................................................ 6
Checking Fluid Leakage ........................................... 6
Air Bleeding Hydraulic System ................................. 6
STEERING WHEEL .................................................... 8
On-Vehicle Inspection and Service .......................... 8
CHECKING CONDITION OF INSTALLATION ...... 8
CHECKING STEERING WHEEL PLAY ................ 8
CHECKING NEUTRAL POSITION STEERING
WHEEL ................................................................. 8
CHECKING STEERING WHEEL TURNING
FORCE .................................................................. 8
CHECKING FRONT WHEEL TURNING ANGLE..... 9
Removal and Installation ........................................ 10
REMOVAL ........................................................... 10
INSTALLATION ................................................... 10
STEERING COLUMN ................................................11
Removal and Installation ......................................... 11
COMPONENT ...................................................... 11
REMOVAL ............................................................ 11
INSPECTION AFTER REMOVAL ....................... 12
INSTALLATION ................................................... 12
INSPECTION AFTER INSTALLATION ............... 13
POWER STEERING GEAR AND LINKAGE ............ 14Removal and Installation ........................................ 14
COMPONENT ..................................................... 14
REMOVAL ........................................................... 14
INSTALLATION ................................................... 15
INSPECTION AFTER INSTALLATION ................ 15
Disassembly and Assembly .................................... 16
COMPONENT ..................................................... 16
DISASSEMBLY ................................................... 17
INSPECTION AFTER DISASSEMBLY ................ 18
ASSEMBLY ......................................................... 20
POWER STEERING OIL PUMP ............................... 25
On-Vehicle Inspection and Service ......................... 25
CHECKING RELIEF OIL PRESSURE ................ 25
Removal and Installation ........................................ 25
REMOVAL ........................................................... 25
INSTALLATION ................................................... 26
Disassembly and Assembly .................................... 26
COMPONENT ..................................................... 26
INSPECTION BEFORE DISASSEMBLY ............. 26
DISASSEMBLY ................................................... 27
INSPECTION AFTER DISASSEMBLY ................ 27
ASSEMBLY ......................................................... 28
HYDRAULIC LINE .................................................... 30
Component (RHD Models) ..................................... 30
Component (LHD Models) ...................................... 32
Removal and Installation ........................................ 33
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 34
Steering Wheel ....................................................... 34
Steering Angle ........................................................ 34
Steering Column ..................................................... 34
Steering Outer Socket and Inner Socket ................ 34
Steering Gear ......................................................... 35
Oil Pump ................................................................. 35
Steering Fluid .......................................................... 35

PS-6
POWER STEERING FLUID
POWER STEERING FLUID
PFP:KLF20
Checking Fluid LevelEGS001LD
lCheck fluid level with engine stopped.
lMake sure that fluid level is between MIN and MAX.
lFluid levels at HOT and COLD are different. Do not confuse
them.
CAUTION:
lThe fluid level should not exceed the MAX line. Excessive
fluid will cause fluid leakage from the cap.
lDo not reuse drained power steering fluid.
lRecommended fluid is Type DEXRONTMIII or equivalent.
Checking Fluid LeakageEGS001LE
Check hydraulic connections for fluid leakage, cracks, damage,
looseness, or wear.
1. Run engine until the fluid temperature reaches 50 to 80°C(122
to 176°F) in reservoir tank, and keep engine speed idle.
2. Turn steering wheel several times from full left stop to full right
stop.
3. Hold steering wheel at each lock position for five seconds and
carefully, check for fluid leakage.
CAUTION:
Do not hold the steering wheel in a locked position for more
than 10 seconds. (There is the possibility that oil pump may
be damaged.)
4. If fluid leakage at connections is noticed, then loosen flare nut and then retighten. Do not over-tighten con-
nector as this can damage O-ring, washer and connector.
5. If fluid leakage from oil pump is noticed, check oil pump. Refer toPS-25, "
POWER STEERING OIL
PUMP".
6. Check steering gear boots for accumulation of fluid, indicating from steering gear.
Air Bleeding Hydraulic SystemEGS001LF
If air bleeding is not complete, the following symptoms can be observed.
lBubbles are created in reservoir tank.
lClicking noise can be heard from oil pump.
lExcessive buzzing in the oil pump
NOTE:
Fluid noise may occur in the steering gear or oil pump. This does not affect performance or durability of
the system.
1. Turn steering wheel several times from full left to full right stop with engine off.
CAUTION:
Turn steering wheel while filling reservoir tank with fluid so as not to lower fluid level below the
MIN line.
2. Start engine and hold steering wheel at each lock position for 3 seconds at idle to check for fluid leakage.
3. Repeat step 2 above several times at approximately 3 second intervals.
CAUTION:
Do not hold the steering wheel in a locked position for more than 10 seconds. (There is the possi-
bility that oil pump may be damaged.)
4. Check fluid for bubbles and while contamination.HOT : Fluid temperature 50 - 80°C (122 - 176°F)
COLD : Fluid temperature 0 - 30°C(32-86°F)
SGIA0232J
SGIA0506E

POWER STEERING FLUID
PS-7
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MA
B
PS
5. Stop engine if bubbles and white contamination do not drain out. Perform step 2 and 3 above after waiting
until bubbles and white contamination drain out.
6. Stop the engine, and then check fluid level.

PS-8
STEERING WHEEL
STEERING WHEEL
PFP:48430
On-Vehicle Inspection and ServiceEGS001LG
CHECKING CONDITION OF INSTALLATION
lCheck installation conditions of steering gear assembly, front suspension assembly, axle and steering col-
umn assembly.
lCheck if movement exists when steering wheel is moved up and down, to the left and right and to the axial
direction.
lCheck steering gear assembly mounting bolts and nuts for looseness. Refer toPS-14, "COMPONENT".
CHECKING STEERING WHEEL PLAY
lTurn steering wheel so that front wheels come to the straight-ahead position. Start engine and lightly turn
steering wheel to the left and right until front wheels start to move. Measure steering wheel movement on
the outer circumference.
lWhen the measurement value is outside the standard value, check backlash for each joint of steering col-
umn assembly and installation condition of steering gear assembly.
CHECKING NEUTRAL POSITION STEERING WHEEL
lMake sure that steering gear assembly, steering column assembly and steering wheel are installed in the
correct position.
lPerform neutral position inspection after wheel alignment. Refer toFSU-7, "Front Wheel Alignment".
lSet vehicle to the straight-ahead position and confirm steering wheel is in the neutral position.
lLoosen outer socket lock nut and turn inner socket to left and right equally to make fine adjustment if
steering wheel is not in the neutral position.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level and dry surface, set parking brake.
2. Start engine.
3. Bring power steering fluid up to adequate operating temperature. [Make sure temperature of fluid is
approximately 50 to 80°C(122to176°F).]
4. Check steering wheel turning force when steering wheel has
been turned 360°from neutral position.
NOTE:
Multiply the distance (L) from the hook of spring scale to the
center of steering wheel by the measurement value with a spring
scale.
5. If steering wheel turning force is out of the specification, check
rack sliding force and relief hydraulic pressure of oil pump.
Regarding relief hydraulic pressure of oil pump, refer toPS-25,
"CHECKING RELIEF OIL PRESSURE".
a. Disconnect lower joint and steering knuckle from steering gear assembly. Refer toPS-11, "
COMPO-
NENT",FAX-5, "Removal and Installation".
b. Start and run engine at idle to make sure steering fluid has reached normal operating temperature.Steering wheel axial end play : 0 mm (0 in)
Steering wheel play : 0 - 35 mm (0 - 1.38 in)
Steering wheel turn-
ing force: Less than 39 N (4.0 kg-m, 8.8 lb)
SGIA1136E

POWER STEERING GEAR AND LINKAGE
PS-15
C
D
E
F
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MA
B
PS
7. Remove high and low pressure piping of hydraulic piping, and
then drain power steering fluid. Refer toPS-6, "
POWER
STEERING FLUID".
8. Remove steering hydraulic piping bracket from front suspension
member. Refer toPS-30, "
HYDRAULIC LINE".
9. Remove mounting bolts and nuts of steering gear assembly, and
then remove steering gear assembly, rack mounting bracket,
rack mounting insulator and washer from vehicle.
INSTALLATION
lInstallation is the reverse order of removal. For tightening torque, refer toPS-14, "COMPONENT".
lWhen installing lower shaft to steering gear assembly, follow the procedure listed below.
–Set rack of steering gear in the neutral position.
NOTE:
To get the neutral position of rack, turn pinion assembly and measure the distance of inner socket, and
then measure the intermediate position of the distance.
–Align rear cover cap projection (A) with the marking position (B)
of gear housing assembly.
–Install slit part of lower shaft (C) aligning with the projection (A)
of rear cover cap (1). Make sure that the slit part of lower shaft
(C) is aligned with both the projection (A) of rear cover cap (1)
and the marking position (B) of gear housing assembly.
lAfter installation, bleed air from the steering hydraulic system.
Refer toPS-6, "
Air Bleeding Hydraulic System".
lPerform final tightening of nuts and bolts on each part under
unladen conditions with tyres on level ground when removing
steering gear assembly. Check wheel alignment. Refer toFSU-
7, "Front Wheel Alignment".
INSPECTION AFTER INSTALLATION
Make sure that steering wheel operates smoothly by turning several times from full left stop to full right stop.
LGIA0032E
SGIA1140E

PS-18
POWER STEERING GEAR AND LINKAGE
11. Remove end cover assembly with a 45 mm (1.77 in) open head
(suitable tool).
CAUTION:
Do not damage rack assembly surface when removing.
Rack assembly must be replaced if damaged because it
may cause fluid leakage.
12. Pull rack assembly together with rack oil seal (outer side) out
from gear housing assembly.
CAUTION:
Do not damage cylinder inner wall when removing rack
assembly. Gear housing assembly must be replaced if dam-
aged because it may cause fluid leakage.
13. Heat rack Teflon ring to approximately 40°C(104°F) with a
dryer, and remove rack Teflon ring and O-ring B from rack
assembly.
CAUTION:
Do not damage rack assembly. Rack assembly must be
replaced if damaged because it may cause fluid leakage.
14. Push rack oil seal inside with a 29 mm (1.14 in) socket and an
extension bar to push out rack oil seal (inner side) from gear
housing assembly.
CAUTION:
Do not damage gear housing assembly and cylinder inner
wall. Gear housing assembly must be replaced if damaged
because it may cause fluid leakage.
INSPECTION AFTER DISASSEMBLY
Boot
Check boot for cracks, and replace it if a malfunction is detected.
Rack Assembly
Check rack for damage or wear, and replace it if a malfunction is detected.
Pinion Assembly
lCheck pinion assembly for damage or wear, and replace it if a malfunction is detected.
lRotate pinion and check for torque variation or rattle, and replace it if a malfunction is detected.
Gear Housing Assembly
Check gear housing assembly for damage and scratches (inner wall). Replace if there are.
Outer Socket and Inner Socket
1. Ball joint swinging torque
SST081B
SGIA0151E
SGIA0179E