engine control system NISSAN PATROL 2006 Repair Manual

Cooling Fan (Crankshaft driven)
DISASSEMBLY AND INSTALLATION
+Do not release the drive belt tension by removing the fan/water
pump pulley.
+Fan coupling cannot be disassembled and should be replaced
as a unit. If front markj
Fis present, install fan so that side
markedj
Ffaces the front.
+Install the drive belt only after the fan and fan coupling to water
pump ¯ange bolts/nuts have been properly torqued.
+Proper alignment of these components is essential. Improper
alignment will cause them to wobble and may eventually cause
the fan to separate from the water pump causing extensive
damage.
INSPECTION
Check fan coupling for damage, oil leakage and bent bimetal.
Cooling Fan (Motor driven)
Cooling fan is controlled by ECM. For details, refer to ``Cooling
Fan'', ``TROUBLE DIAGNOSIS FOR DTC 28'' in EC section.
SLC176B
SLC072
SLC177B
ENGINE COOLING SYSTEM
LC-15

MAINTENANCE
SECTION
MA
CONTENTS
PRECAUTIONS AND PREPARATION............................1
Supplemental Restraint System (SRS) ``AIR
BAG'' and ``SEAT BELT PRE-TENSIONER''...............1
Special Service Tools ..................................................1
PRE-DELIVERY INSPECTION ITEMS............................2
GENERAL MAINTENANCE............................................3
PERIODIC MAINTENANCE............................................4
Engine Oil & Minor Service .........................................4
Engine and Emission Control Service .........................5
Chassis and Body Services.........................................6
Maintenance Under Severe Driving Conditions ..........8
RECOMMENDED FLUIDS AND LUBRICANTS.............9
Fluids and Lubricants ..................................................9
SAE Viscosity Number ..............................................10
Anti-freeze Coolant Mixture Ratio ............................. 11
ENGINE MAINTENANCE..............................................12
Checking Tightening Torque ......................................12
Checking Drive Belt ...................................................12
Changing Engine Oil..................................................13
Changing Engine Oil Filter ........................................14
Changing Engine Coolant..........................................14
Checking Cooling System .........................................16
Checking and Replacing Fuel Filter and Draining
Water .........................................................................16
Checking Fuel Lines ..................................................17
Cleaning and Replacing Air Cleaner Filter ................18
Checking Injection Nozzle .........................................18
Checking Idle Speed .................................................19
Timing Belt Replacement...........................................19
CHASSIS AND BODY MAINTENANCE.......................20
Checking Exhaust System.........................................20
Checking Clutch Fluid Level and Leaks ....................20
Checking Clutch System ...........................................20Checking M/T Oil Level and Leaks ...........................20
Changing M/T Oil.......................................................20
Checking Water Entry ................................................21
Checking Transfer Fluid Level ...................................21
Changing Transfer Fluid ............................................21
Checking Propeller Shaft ...........................................21
Greasing Nipples of Propeller Shafts ........................21
Checking Differential Gear Oil ...................................22
Changing Differential Gear Oil ..................................22
Checking Front Wheel Bearing Grease ....................22
Repacking Front Wheel Bearing and Axle Joint
Grease .......................................................................23
Checking Free-running Hub Grease .........................23
Checking Water Entry in Knuckle Flange..................23
Checking Brake Fluid Level and Leaks.....................23
Checking Brake System ............................................24
Changing Brake Fluid ................................................24
Checking Brake Booster, Vacuum Hoses,
Connections and Check Valve ..................................24
Checking Disc Brake .................................................24
Balancing Wheels ......................................................25
Tire Rotation ..............................................................25
Checking Power Steering Fluid and Lines ................26
Checking Steering Damper .......................................26
Checking Steering Gear Box and Linkage ................26
Lubricating Locks, Hinges and Hood Latches...........27
Checking Seat Belts, Buckles, Retractors,
Anchors and Adjusters...............................................27
Checking Body Corrosion ..........................................28
SERVICE DATA AND SPECIFICATIONS (SDS)..........29
Engine Maintenance ..................................................29
Chassis and Body Maintenance ................................29
MA

Shown below are Pre-delivery Inspection Items required for the new vehicle. It is recommended that
necessary items other than those listed here be added, paying due regard to the conditions in each
country.
Perform applicable items on each model. Consult text of this section for speci®cations.
UNDER HOOD Ð engine off
hRadiator coolant level and coolant hose connec-
tions for leaks
hBattery ¯uid level, speci®c gravity and condi-
tions of battery terminals
hDrive belts tension
hFuel ®lter for water or dusts, and fuel lines and
connections for leaks
hEngine oil level and oil leaks
hClutch and brake reservoir ¯uid level and ¯uid
lines for leaks
hWindshield and rear window washer and head-
lamp cleaner reservoir ¯uid level
hPower steering reservoir ¯uid level and hose
connections for leaks
ON INSIDE AND OUTSIDE
hXRemove front spring/strut spacer (If applicable)
hOperation of all instruments, gauges, lights and
accessories
hOperation of horn(s), wiper and washer
hSteering lock for operation
hCheck air conditioner for gas leaks
hFront and rear seats, and seat belts for opera-
tion
hAll moldings, trims and ®ttings for ®t and align-
ment
hAll windows for operation and alignment
hHood, trunk lid, door panels for ®t and alignment
hLatches, keys and locks for operation
hWeatherstrips for adhesion and ®t
hHeadlamp aiming
hTighten wheel nuts (Inc. inner nuts if applicable)
hTire pressure (Inc. spare tire)
hCheck front wheels for toe-in
hInstall clock/voltmeter/room lamp fuse (If appli-
cable)
h
XInstall deodorizing ®lter to air puri®er (If appli-
cable)
h
XRemove wiper blade protectors (If applicable)
UNDER BODY
hManual transmission/transaxle gear oil, transfer
¯uid and differential gear oil level
hBrake and fuel lines and oil/¯uid reservoirs for
leaks
hTighten bolts and nuts of steering linkage and
gear box, suspension, propeller shafts and drive
shafts
h
XTighten rear body bolts and nuts (Models with
wooden bed only)
ROAD TEST
hClutch operation
hParking brake operation
hService brake operation
hAutomatic transmission/transaxle shift timing
and kickdown
hSteering control and returnability
hEngine performance
hSqueaks and rattles
ENGINE OPERATING AND HOT
hAdjust idle mixture and speed (and ignition tim-
ing*1)
hAutomatic transmission/transaxle ¯uid level
hEngine idling and stop knob operation (Diesel
only)
FINAL INSPECTION
hInstall necessary parts (outside mirror, wheel
covers, seat belts, mat, carpet or mud ¯aps)
hInspect for interior and exterior metal and paint
damage
hCheck for spare tire, jack, tools (wheel chock),
and literature
hWash, clean interior and exterior
*1: Not required on models with a direct ignition system
h
X: Not applicable to this model.
PRE-DELIVERY INSPECTION ITEMS
MA-2

Engine and Emission Control Service
Annual driving distance below 30,000 km (18,000 miles)
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace, A = Adjust. [ ]: At the speci®ed mileage only
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
page Perform either at number of kilometers (miles)
or months, whichever comes ®rst.km x 1,000 10 20 30 40 50 60 70 80 90
(Miles x 1,000) (6) (12) (18) (24) (30) (36) (42) (48) (54)
Months 6 12 18 24 30 36 42 48 54
Underhood and under vehicle
Engine anti-freeze coolant (Ethylene glycol base, LLC) See NOTE (2) R MA-14
Cooling systemI I I MA-16
Fuel linesI I MA-17
Fuel ®lterR R MA-16
Air cleaner ®lter (Viscous paper type).R R MA-18
Intake & exhaust valve clearanceAAAA *1
Injection nozzles See NOTE (3)MA-18
Timing belts for camshaft and injection pump[R] *2
NOTE: (1) Maintenance items with ``.'' should be performed more frequently according to ``Maintenance Under Severe
Driving Conditions''.
(2) First replace at 80,000 km (48,000 miles) or 48 months, then every 60,000 km (36,000 miles) or 36 months.
(3) If engine power decreases, black smoke is emitted or engine noise increases, check and, if necessary, adjust
the fuel injection nozzle's starting pressure and the fuel spray pattern.
*1: ``VALVE CLEARANCE'', RD in EM section
*2: ``TIMING BELT'' RD in EM section
Annual driving distance over 30,000 km (18,000 miles)
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace, A = Adjust.
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
page km x 1,000 10 20 30 40 50 60 70 80 90
(Miles x 1,000) (6) (12) (18) (24) (30) (36) (42) (48) (54)
Underhood and under vehicle
Engine anti-freeze coolant (Ethylene glycol base, LLC) See NOTE (2) R MA-14
Cooling systemI I MA-16
Fuel linesI MA-17
Fuel ®lterR MA-16
Air cleaner ®lter (Viscous paper type).R MA-18
Intake & exhaust valve clearanceAAA*1
Injection nozzles See NOTE (3)MA-18
Timing belts for camshaft and injection pumpR*2
NOTE: (1) Maintenance items with ``.'' should be performed more frequently according to ``Maintenance Under Severe
Driving Conditions''.
(2) First replace at 90,000 km (54,000 miles), then every 60,000 km (36,000 miles).
(3) If engine power decreases, black smoke is emitted or engine noise increases, check and, if necessary, adjust
the fuel injection nozzle's starting pressure and the fuel spray pattern.
*1: ``VALVE CLEARANCE'', RD in EM section
*2: ``TIMING BELT'', RD in EM section
PERIODIC MAINTENANCE
MA-5

4. Remove cylinder block drain plug located at left rear of cylin-
der block.
5. Drain coolant and install reservoir tank, cylinder block drain
plug and radiator drain plug.
6. Fill radiator with water and warm up engine.
7. Stop engine and wait until it cools down.
8. Repeat step 2 through step 7 two or three times.
9. Drain water.
ÐREFILLING ENGINE COOLANTÐ
10. Install reservoir tank, radiator drain plug, and cylinder block
drain plugs.
+Apply sealant to the thread of cylinder block drain plug.
Cylinder block drain plug:
:34-44Nzm (3.5 - 4.5 kg-m, 25 - 33 ft-lb)
11. Fill radiator and reservoir tank with coolant up to the MAX level
and install radiator cap.
For coolant mixture ratio, refer to MA-11.
Coolant capacity (With reservoir tank):!(Imp qt)
RHD models
Without rear heater 11.8 (10-3/8)
With rear heater 12.9 (11-3/8)
LHD models
Without rear heater 11.6 (10-1/4)
With rear heater 12.7 (11-1/8)
Reservoir tank capacity (for MAX level):
1.2!(1-1/8 Imp qt)
Pour coolant through coolant ®ller neck slowly to allow air in
system to escape.
12. Warm up engine to normal operating temperature.
13. Run engine at 2,000 rpm for 10 seconds and return to idle
speed.
+Repeat 2 or 3 times.
Watch coolant temperature gauge so as not to overheat the
engine.
14. Stop engine and cool it down.
+Cool down using a fan to reduce the time.
15. Remove the radiator ®ller cap and check coolant level.
+If necessary, re®ll radiator up to ®ller neck with coolant.
16. Re®ll reservoir tank to Max line with coolant.
17. Repeat step 12 through step 16 two or more times.
18. Warm up engine, and check for sound of coolant ¯ow while
running engine from idle up to 2,000 rpm with heater tempera-
ture control set at several positions between COOL and HOT.
+Sound may be noticeable at heater water cock.
19. If sound is heard, bleed air from cooling system by repeating
steps 12 through 16 until coolant level no longer drops.
+Clean excess coolant from engine.
SMA003D
SMA182B
SMA412B
SMA004D
ENGINE MAINTENANCE
Changing Engine Coolant (Cont'd)
MA-15

Removal
1. Remove front and rear propeller shafts. Refer to PD section
(``Removal and Installation'', ``PROPELLER SHAFT'').
2. Remove clutch operating cylinder.
3. Remove exhaust front and rear tubes. Refer to FE section
(``EXHAUST SYSTEM'').
4. Disconnect vehicle speed sensor, back-up lamp switch, 4WD
switch and neutral position switch harness connector.
5. Remove center brake cable. Refer to BR section.
6. Remove shift lever of transmission. Refer to MT-12 (RS5R30A).
7. Remove transfer control lever. Refer to TF section (``Removal'',
``REMOVAL AND INSTALLATION'').
8. Support engine by placing a jack under oil pan.
+Do not place jack under the oil pan drain plug.
9. Remove transmission with transfer from engine.
WARNING:
Support Manual Transmission with transfer, while removing it.
SMT321D
REMOVAL AND INSTALLATION
MT-5

Bleeding Hydraulic System
1. Raise front end of vehicle until wheels are clear of the ground.
2. Add ¯uid into oil tank to speci®ed level. Then, quickly turn steer-
ing wheel fully to right and left and lightly touch steering stop-
pers.
Repeat steering wheel operation until ¯uid level no longer
decreases.
3. Start engine.
Repeat step 2 above.
+Incomplete air bleeding will cause the following to occur. When
this happens, bleed air again.
a. Air bubbles in reservoir tank
b. Clicking noise in oil pump
c. Excessive buzzing in oil pump
Fluid noise may occur in the valve or oil pump. This is common
when the vehicle is stationary or while turning steering wheel
slowly. This does not affect performance or durability of the system.
Checking Steering Wheel Turning Force
1. Park vehicle on a level, dry surface and set parking brake.
2. Start engine.
3. Bring power steering ¯uid up to adequate operating tempera-
ture. [Make sure temperature of ¯uid is approximately 60 to
80ÉC (140 to 176ÉF).]
Tires need to be in¯ated to normal pressure.
4. Check steering wheel turning force when steering wheel has
been turned 360É from the neutral position.
Steering wheel turning force:
39 N (4 kg, 9 lb) or less
Checking Hydraulic System
Before starting, check belt tension, driving pulley and tire pressure.
1. Set Tool. Open shut-off valve. Then bleed air. Refer to ``Bleed-
ing Hydraulic System'', ST-6.
2. Run engine at idle speed or 1,000 rpm.
Make sure ¯uid temperature in reservoir tank rises to 60 to
80ÉC (140 to 176ÉF).
WARNING:
Warm up engine with shut-off valve fully opened. If engine is
started with shut-off valve closed, ¯uid pressure in the power
steering pump increases to maximum. This will raise ¯uid tem-
perature abnormally.
3. Check pressure with steering wheel fully turned to left and right
positions with engine idling at 1,000 rpm.
CAUTION:
Do not hold the steering wheel in a locked position for more
than 15 seconds.
Power steering pump maximum operating pressure:
8,140 - 8,728 kPa (81.4 - 87.3 bar, 83 - 89 kg/cm
2,
1,180 - 1,266 psi)
+If pressure reaches maximum operating pressure, system is
OK.
+If pressure increases above maximum operating pressure,
check power steering pump ¯ow control valve. Refer to ST-16.
SST491B
SST834-E
ON-VEHICLE SERVICE
ST-6