2008 INFINITI FX35 checking oil

ENGINE MAINTENANCE (VK45DE ENGINE)MA-19
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ENGINE MAINTENANCE (VK45DE ENGINE)
Checking Drive BeltsINFOID:0000000001328909
WARNING:
Be sure to perform when the engine is stopped.
 Remove air duct (inlet) when inspecting drive belt for alternator, water pump and A/C compressor.
 Remove front engine undercover with power tool when inspecting power steering oil pump belt.
 Make sure that indicator (single line notch) of eac h auto tensioner is within the allowable working range
(between three line notches).
NOTE:
 Check auto tensioner indication when engine is cold.
 When new drive belt is installed, the range should be “A”.
 The indicator notch is located on the moving side of the tensioner for alternator, water pump and A/C com-
pressor belt, while it is found on the fi xed side for power steering oil pump belt.
 Visually check entire belt for wear, damage or cracks.
 If the indicator is out of allowable working range or belt is damaged, replace belt.
Tension AdjustmentINFOID:0000000001328910
Belt tensioning is not necessary, as it is automatically adjusted by auto tensioner.
Changing Engine CoolantINFOID:0000000001328911
WARNING:
 To avoid being scalded, do not change engine coolant when engine is hot.
 Wrap a thick cloth around radiator cap and carefully remove radiator cap. First, turn radiator cap a
quarter of a turn to release built-up pressu re. Then turn radiator cap all the way.
 Be careful not to allow engine coolant to contact drive belts.
DRAINING ENGINE COOLANT
1. Remove front engine undercover with power tool.
PBIC2331E
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MA-22
< SERVICE INFORMATION >
ENGINE MAINTENANCE (VK45DE ENGINE)
5. Rev engine two or three times under no-load.
6. Stop engine and wait until it cools down.
7. Drain water from the system. Refer to "DRAINING ENGINE COOLANT".
8. Repeat steps 1 through 7 until clear water begins to drain from radiator.
Checking Fuel LineINFOID:0000000001328912
Inspect fuel lines, fuel filler cap and fuel tank for improper attach-
ment, leaks, cracks, damage, loose connections, chafing or deterio-
ration.
If necessary, repair or replace damaged parts.
Changing Air Cleaner FilterINFOID:0000000001328913
VISCOUS PAPER TYPE
The viscous paper type filter does not need cleaning between replacement intervals. Refer to MA-5.
1. Remove air duct (inlet), air cleaner case and mass air flow sensor assembly. Refer to EM-173
.
2. Remove air cleaner filter from air cleaner case.
Changing Engine OilINFOID:0000000001328914
WARNING:
 Be careful not to burn yoursel f, as engine oil may be hot.
 Prolonged and repeated contact with used engine oil may cause ski n cancer. Try to avoid direct skin
contact with used engine oil. If skin contact is made, wash thoroughly with soap or hand cleaner as
soon as possible.
1. Remove front engine undercover with power tool.
2. Warm up engine, put vehicle horizontally and check for engine oil leakage from engine components. Refer
to LU-23, "
Inspection".
3. Stop engine and wait for 15 minutes.
4. Loosen oil filler cap, and then remove drain plug.
5. Drain engine oil.
6. Install drain plug with new washer. Refer to EM-183
.
CAUTION:
Be sure to clean drain plug and install with new washer.
7. Refill with new engine oil. Engine oil specification and viscosity:
Refer to MA-9
.
Engine oil capacity (Approximate):
Unit: (US qt, Imp qt)
CAUTION:
SMA803A
Oil pan drain plug:
: 34.3 N·m (3.5 kg-m, 25 ft-lb)
PBIC0993E
Drain and refill With oil filter change 5.8 (6-1/8, 5-1/8)
Without oil filter change 5.2 (5-1/2, 4-5/8)
Dry engine (engine overhaul) 7.0 (7-3/8, 6-1/8)
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CHASSIS AND BODY MAINTENANCEMA-29
< SERVICE INFORMATION >
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2. Check fluid level. CAUTION:
Carefully fill the fluid. (Fil l up for Approx. 3 minutes.)
Checking Propeller ShaftINFOID:0000000001328923
Check propeller shaft for damage, looseness or grease leakage.
Checking Differential Gear OilINFOID:0000000001328924
Check for oil leakage.
Changing Differential Gear OilINFOID:0000000001328925
1. Drain oil from drain plug and refill with new gear oil.Fluid grade:
Genuine NISSAN Matic D ATF (Continental U.S. and
Alaska) or Canada NISSAN Automatic Transmis-
sion Fluid or equivalent (if available)
Refer to MA-9
.
Fluid capacity:
: Approx. 1.25 (2-5/8 US pt, 2-1/4 lmp pt)
Drain plug:
: 29.4 N·m (3.0 kg-m, 22 ft-lb)
Filler plug:
: 35 N·m (3.6 kg-m, 26 ft-lb)
SDIA2087E
Tightening torque: Refer to PR-7
SMA118A
SMA012C
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CHASSIS AND BODY MAINTENANCEMA-35
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Lubricating Locks, Hinges and Hood LatchINFOID:0000000001328936
Checking Seat Belt, Bu ckles, Retractors, Anchors and AdjustersINFOID:0000000001328937
CAUTION:
 After any collision, inspect all seat belt assembli es, including retractors and other attached hard-
wares (I.e. anchor bolt, guide rail set). Nissan recommends to replace all seat belt assemblies in use
during a collision, unless not damaged an d properly operating after minor collision.
Also inspect seat belt assemblies no t in use during a collision, and replace if damaged or improperly
operating.
Seat belt pre-tensioner should be replaced even if the seat belts are not in use during a frontal colli-
sion where the driver and passenger air bags are deployed.
 If any component of seat belt assembl y is questionable, do not repair.
Replace as seat belt assembly.
 If webbing is cut, frayed, or damaged, replace belt assembly.
 Never oil tongue and buckle.
 Use a genuine NISSAN seat belt assembly.
PIIA7009E
PIIB7160E
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PS-1
STEERING
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SECTION PS
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CONTENTS
POWER STEERING SYSTEM
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .....................................
2
Precaution for Steering System ................................2
PREPARATION ...................................................4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................5
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
6
NVH Troubleshooting Chart ................................ ......6
POWER STEERING FLUID ................................7
Checking Fluid Level ........................................... ......7
Checking Fluid Leakage ............................................7
Air Bleeding Hydraulic System ..................................7
STEERING WHEEL .............................................9
On-Vehicle Inspection and Service ..................... ......9
Removal and Installation .........................................10
STEERING COLUMN .........................................12
Removal and Installation ..................................... ....12
Disassembly and Assembly .....................................14
POWER STEERING GEAR AND LINKAGE ....17
Removal and Installation .........................................17
Disassembly and Assembly .....................................19
POWER STEERING OIL PUMP .......................27
On-Vehicle Inspection and Service .........................27
Removal and Installation (VQ35DE Models) ...........28
Removal and Installation (VK45DE Models) ...........29
Disassembly and Assembly (VQ35DE Models) ......29
Disassembly and Assembly (VK45DE Models) .......32
HYDRAULIC LINE ............................................37
Component ..............................................................37
Removal and Installation .........................................39
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
41
Steering Wheel ........................................................41
Steering Angle .........................................................41
Steering Column ......................................................41
Steering Outer Socket and Inner Socket .................41
Steering Gear ..........................................................42
Oil Pump ..................................................................43
Steering Fluid ..........................................................43
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POWER STEERING FLUIDPS-7
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POWER STEERING FLUID
Checking Fluid LevelINFOID:0000000001327709
 Stop engine before performing a fluid level check.
 Ensure that fluid level is between the MAX range and MIN level.
 Because fluid level differs within the HOT range and the COLD range, check it carefully.
CAUTION:
 Do not overfill the Max level.
 Do not reuse any used power steering fluid.
 For recommended fluid, refer to MA-9, "
Fluids and Lubricants".
Checking Fluid LeakageINFOID:0000000001327710
Check the hydraulic piping lines for improper attachment and for
leaks, cracks, damage, loose connections, chafing or deterioration.
1. Run engine until fluid temperature reaches 50 to 80 ° C (122 to
176 °F) in reservoir tank. Keep engine speed idle.
2. Turn steering wheel right-to-left several times.
3. Hold steering wheel at each “lock” position for five seconds to check fluid leakage.
CAUTION:
Do not hold 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 loos en 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 to PS-27
.
6. Check steering gear boots for accumulation of fluid indicating a from steering gear.
Air Bleeding Hydraulic SystemINFOID:0000000001327711
Incomplete air bleeding causes the following. When this happens, bleed air again.
 Generation of air bubbles in reservoir tank.
 Generation of clicking noise in oil pump.
 Excessive buzzing in oil pump. NOTE:
When vehicle is stationary or while steering wheel is being turned slowly, some noise may be heard from oil
pump or gear. This noise is normal and does not affect any system.
1. Stop engine, and then turn steering wheel fully to right and left several times. CAUTION:
Do not allow steering fluid reservoir tank to go below the low-level line. Check tank frequently and
add fluid as needed.
2. Run engine at idle speed. Turn steering wheel fully to the right and then fully to the left, and keep for about
three seconds. Then check whether a fluid leakage has occurred.
3. Repeat the 2nd procedure several times at about three seconds intervals. CAUTION:
Do not hold steering wheel in the locked position more than 10 seconds. (There is the possibility
that oil pump may be damaged.)
4. Check generation of air bubbles and cloud in fluid.
5. If air bubbles and the cloud don't fade, stop engine, hold air bleeding until air bubbles and the cloud fade.
Perform the 2nd and the 3rd procedures again. HOT : Fluid temperatures from 50 to 80
°C (122 to
176 °F)
COLD : Fluid temperatures from 0 to 30 °C (32 to 86 °F)
SGIA0232J
SGIA0506E
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STEERING WHEELPS-9
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STEERING WHEEL
On-Vehicle Inspection and ServiceINFOID:0000000001327712
CHECKING CONDITION OF INSTALLATION
 Check installation condition of steering gear assemb ly, front suspension, axle and steering column.
 Check if movement exists when steering wheel is mo ved up and down, to the left and right and to the axial
direction.
 Check if the mounting bolts for steering gear assembly are loose or not. Refer to PS-17
.
CHECKING STEERING WHEEL PLAY
1. Set tires to the straight ahead, start engine, then turn steering wheel to the left and right lightly, and mea-
sure steering wheel movement on the outer circumfe rence when steering wheel is turned up to the point
where tires start moving.
CHECKING NEUTRAL POSITION ON STEERING WHEEL
Check neutral position on steering wheel after confirming that front wheel alignment is correct. Refer to FSU-5,
"Wheel Alignment Inspection".
1. Set vehicle to the straight direction, chec k if steering wheel is in the neutral position.
2. If it is not in the neutral position, remo ve steering wheel and reinstall it correctly.
3. If the neutral position cannot adjust in the two teeth of steering gear assembly, loosen outer socket lock
nuts of steering outer sockets, then adjust outer so cket by the same amount in the opposite direction.
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 te mperature. [Make sure temperature of fluid is
approximately 50 to 80 °C (122 to 176 °F).]
NOTE:
Tires need to be inflated normal pressure.
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 balance to the
center of steering wheel by the measurement value with a spring
balance.
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 to PS-27, "
On-Vehicle Inspection and Service".
End play of the axle direction for steering wheel : 0 mm (0 in)
SGIA0546E
Steering wheel play on the
outer circumference : 0 − 35 mm (0 − 1.38 in)
Steering wheel turning force : Less than 7.45 N·m (0.76 kg-m, 66 in-lb)
SGIA1136E
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POWER STEERING OIL PUMPPS-27
< SERVICE INFORMATION >
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POWER STEERING OIL PUMP
On-Vehicle Inspection and ServiceINFOID:0000000001327718
CHECKING RELIEF OIL PRESSURE (VQ35DE MODELS)
CAUTION:
Before starting work, confirm belt tension is proper.
1. Connect oil pressure gauge (SST) and oil pressure gauge adapter (SST) between oil pump discharge connector and high
pressure hose and then bleed air from the hydraulic circuit.
2. Start engine. Allow engine to run until tank temperature reaches 50 to 80 °C (122 to 176 °F).
CAUTION:
 Warm up engine with shut-o ff valve fully opened. If engine
is started with shut-off val ve closed, fluid pressure in
power steering pump increases to maximum. This will
raise fluid temperature excessively.
 Be careful not to contact hose with belt when engine is
started.
3. With engine at idle, close shut-off valve and read the relief oil pressure.
CAUTION:
Do not close shut-off valve of pressu re gauge for more than 10 seconds.
4. After measurement, open shut-off valve slowly. If relief oil pressure is outside the specificat ion, disassemble and repair oil pump. Refer to PS-29, "
Disas-
sembly and Assembly (VQ35DE Models)".
5. After inspection, disconnect oil pressure gauge ( SST) and oil pressure gauge adapter (SST) from hydrau-
lic circuit, connect oil pump discharge connector and high pressure hose. Add fluid and bleed air from
hydraulic circuit thoroughly.
Refer to PS-7, "
Air Bleeding Hydraulic System".
CHECKING RELIEF OIL PRES SURE (VK45DE MODELS)
CAUTION:
SGIA0570E
SST
Pressure gauge KV48103500
(J-26357&J-26357-10)
Oil pump side Eye joint KV48102500-01 ( — )
Washer KV48102500-04 ( — )
Bolt KV48102500-03 ( — )
High pressure piping side Flare joint KV48102500-02 ( — )
Washer KV48102500-04 ( — )
Bolt KV48102500-03 ( — )
Relief oil pressure
: 9,900 - 10,700 kPa (101 - 109.1 kg/cm
2, 1436 - 1552 psi)
SGIA0522E
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