1998 NISSAN PICK-UP belt

Supplemental Restraint System (SRS) ``AIR
BAG'' (4WD models)
The Supplemental Restraint System ``AIR BAG'', used along with a seat belt, helps to reduce the risk or
severity of injury to the driver in a frontal collision. The Supplemental Restraint System consists of air bag
module (located in the center of the steering wheel), a diagnosis sensor unit, warning lamp, wiring harness
and spiral cable. Information necessary to service the system safely is included in theRS sectionof this
Service Manual.
WARNING:
lTo avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN dealer.
lImproper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
lDo not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses are covered with yellow insulation either just before the
harness connectors or for the complete harness, for easy identification.
Supplemental Restraint System (SRS) ``AIR
BAG'' (2WD models)
The Supplemental Restraint System ``AIR BAG'', used along with a seat belt, helps to reduce the risk or
severity of injury to the driver in a frontal collision. The Supplemental Restraint System consists of an air
bag module (located in the center of the steering wheel), a diagnosis sensor unit, warning lamp, wiring har-
ness and spiral cable. Information necessary to service the system safely is included in theRS sectionof
this Service Manual.
WARNING:
lTo avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN dealer.
lImproper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
lDo not use electrical test equipment on any circuit related to the SRS.
PRECAUTIONS AND PREPARATION
MA-1

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 specifications.
UNDER HOOD Ð engine off
hRadiator coolant level and coolant hose con-
nections for leaks
hBattery fluid level, specific gravity and condi-
tions of battery terminals
hDrive belts tension
hFuel filter for water or dusts, and fuel lines and
connections for leaks
hEngine oil level and oil leaks
hClutch and brake reservoir fluid level and fluid
lines for leaks
hWindshield and rear window washer and head-
lamp cleaner reservoir fluid level
hPower steering reservoir fluid level and hose
connections for leaks
ON INSIDE AND OUTSIDE
hRemove 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 fittings for fit and align-
ment
hAll windows for operation and alignment
hHood, trunk lid, door panels for fit and align-
ment
hLatches, keys and locks for operation
hWeatherstrips for adhesion and fit
hHeadlamp aiming
hTighten wheel nuts (Inc. inner nuts if appli-
cable)
hTire pressure (Inc. spare tire)
hCheck front wheels for toe-in
hInstall clock/voltmeter/room lamp fuse (If appli-
cable)
UNDER BODY
hManual transmission/transaxle gear oil, trans-
fer fluid and differential gear oil level
hBrake and fuel lines and oil/fluid reservoirs for
leaks
hTighten bolts and nuts of steering linkage and
gear box, suspension, propeller shafts and
drive shafts
ROAD TEST
hClutch operation
hParking brake operation
hService brake operation
hSteering control and returnability
hEngine performance
hSqueaks and rattles
ENGINE OPERATING AND HOT
hAdjust idle mixture and speed (and ignition tim-
ing*1)
hEngine idling and stop knob operation (Diesel
only)
FINAL INSPECTION
hInstall necessary parts (outside mirror, wheel
covers, seat belts, mat, carpet or mud flaps)
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-3

General maintenance includes those items which should be checked during the normal day-to-day opera-
tion of the vehicle. They are essential if the vehicle is to continue operating properly. The owners can per-
form the checks and inspections themselves or they can have their NISSAN dealers do them.
Item Reference pages
OUTSIDE THE VEHICLE
The maintenance items listed here should be performed from time to time, unless otherwise
specified.
TiresCheck the pressure with a gauge periodically when at a service station, including the
spare, and adjust to the specified pressure if necessary. Check carefully for damage, cuts or
excessive wear.Ð
Windshield wiper bladesCheck for cracks or wear if they do not wipe properly. Ð
Doors and engine hoodCheck that all doors, the engine hood, the trunk lid and back door
operate properly. Also ensure that all latches lock securely. Lubricate hinges, latches, rollers and
links if necessary. Make sure that the secondary latch keeps the hood from opening when the
primary latch is released.
When driving in areas using road salt or other corrosive materials, check for lubrication fre-
quently.MA-39
Tire rotationTires should be rotated every 10,000 km (6,000 miles) for 2WD models and every
5,000 km (3,000 miles) for 4WD models.MA-35
INSIDE THE VEHICLE
The maintenance items listed here should be checked on a regular basis, such as when per-
forming periodic maintenance, cleaning the vehicle, etc.
LightsMake sure that the headlights, stop lights, tail lights, turn signal lights, and other lights
are all operating properly and installed securely. Also check headlight aim.Ð
Warning lights and chimesMake sure that all warning lights and chimes are operating prop-
erly.Ð
Steering wheelCheck for change in the steering conditions, such as excessive free play, hard
steering or strange noises.
Free play: Less than 35 mm (1.38 in)Ð
Seat beltsCheck that all parts of the seat belt system (e.g. buckles, anchors, adjusters and
retractors) operate properly and smoothly, and are installed securely. Check the belt webbing for
cuts, fraying, wear or damage.MA-40
UNDER THE HOOD AND VEHICLE
The maintenance items listed here should be checked periodically e.g. each time you check the
engine oil or refuel.
Windshield washer fluidCheck that there is adequate fluid in the tank. Ð
Engine coolant levelCheck the coolant level when the engine is cold. MA-16, 25
Engine oil levelCheck the level after parking the vehicle on a level spot and turning off the
engine.MA-19, 24
Brake and clutch fluid levelMake sure that the brake and clutch fluid levels are between the
``MAX'' and ``MIN'' lines on the reservoir.MA-32, 35
BatteryCheck the fluid level in each cell. It should be between the ``MAX'' and ``MIN'' lines. Ð
GENERAL MAINTENANCE
MA-4

Depending on annual driving distance and engine types, different basic schedules are introduced here.
Please follow the appropriate schedule for the vehicle. Furthermore, according to the weather and atmo-
spheric conditions, varying road surfaces, individual driving habits and vehicle usage, additional or more
frequent maintenance may be required, as shown in ``Maintenance Under Severe Driving Conditions''.
Periodic maintenance beyond the last period shown on the tables requires similar maintenance.
Basic Schedule for Gasoline Engine Models
Engine maintenance for vehicles which drive less than 30,000 km/year (18,000 miles/year)
Abbreviations: R= Replace, I = Inspect and correct or replace as necessary.
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
page Perform at kilometer (mile) interval or month interval, whichever comes
first.km x 1,000 15 30 45 60 75 90
(Miles x 1,000) (9) (18) (27) (36) (45) (54)
Months 12 24 36 48 60 72
Engine oil (Use API SG or SH oil)*RRRRRRMA-19
Engine oil filter*RRRRRRMA-20
Drive beltsIIIIIIMA-15
Engine anti-freeze coolant (Ethylene glycol base) See NOTE (1) MA-16
Cooling systemIIIIIIMA-17
Air cleaner filter (Viscous paper type)*R MA-19
Fuel linesI I I MA-18
Fuel filter*R MA-18
Vapor linesI I I MA-22
Spark plugs (Conventional type)R R R MA-20
Ignition wiresI I MA-21
Heated oxygen sensor (Exhaust gas sensor)I I I MA-22
PCV filter*R R R MA-21
NOTE: (1) Replace at the first 90,000 km (54,000 miles) or 60 months, then every 60,000 km (36,000 miles) or 48 months,
whichever comes first.
* Maintenance item with ``*'' should be performed more frequently according to ``Maintenance Under Severe Driving Condi-
tions''.
PERIODIC MAINTENANCE
MA-5

Engine maintenance for vehicles which drive more than 30,000 km/year (18,000 miles/year)
Abbreviations: R= Replace, I = Inspect and correct or replace as necessary.
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
page
Perform at kilometer (mile) interval.km x 1,000 15 30 45 60 75 90 105 120
(Miles x 1,000) (9) (18) (27) (36) (45) (54) (63) (72)
Engine oil (Use API SG or SH oil)*RRRRRRRRMA-19
Engine oil filter*RRRRRRRRMA-20
Drive beltsIIIIIIIIMA-15
Engine anti-freeze coolant (Ethylene glycol base) See NOTE (1) R MA-16
Cooling systemIIIIMA-17
Air cleaner filter (Viscous paper type)*R R MA-19
Fuel linesI I MA-18
Fuel filter*R MA-18
Vapor linesI I MA-22
Spark plugs (Conventional type)RRRRMA-20
Ignition wiresI MA-21
Heated oxygen sensor (Exhaust gas sensor)I I MA-22
PCV filter*R R MA-21
NOTE: (1) Replace at the first 90,000 km (54,000 miles), then every 60,000 km (36,000 miles).
* Maintenance item with ``*'' should be performed more frequently according to ``Maintenance Under Severe Driving Condi-
tions''.
Chassis and body maintenance for vehicles which drive more than 30,000 km/year (18,000 miles/year)
Abbreviations: R= Replace, I = Inspect and correct or replace as necessary, L = Lubricate, T = Tighten.
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
page
Perform at kilometer (mile) interval.km x 1,000 15 30 45 60 75 90 105 120
(Miles x 1,000) (9) (18) (27) (36) (45) (54) (63) (72)
Headlamp aimingIIIINOTE (3)
Wheel alignment (If necessary, rotate & balance wheels)IIIIMA-35, NOTE (4)
Brake pads, discs & other brake components*IIIIMA-36
Brake linings, drums & other brake components*IIIIMA-36
Foot brake, parking brake & clutch (For free play, stroke & operation)IIIINOTE (5)
Brake booster vacuum hoses, connections & check valve I I MA-36
Brake & clutch systemsIIIIMA-32, 35
Brake & clutch fluid (For level & leaks)IIIIMA-32, 35
Brake fluid*R R MA-35
Power steering fluid & lines (For level & leaks)IIIIMA-37
Manual steering gear oil (For level & leaks)IIIIMA-38
Air bag system See NOTE (1)NOTE (6)
Manual transmission oil (Inspect for leaks or replace) I I R I MA-32
Transfer fluid and standard differential gear oil (For leaks)* I R I R MA-33, 34
Limited-slip differential (LSD) gear oil (For level and leaks)* I R I R MA-34
Steering gear, linkage, axle, suspension parts & propeller shaft*IIIIMA-37, 33
Greasing point of steering linkage, propeller shaft & sus-
pension*See NOTE (2)LLLLMA-33
Exhaust system*IIIIMA-32
Drive shaft*IIIINOTE (7)
Front wheel bearing grease (2WD models)I I NOTE (8)
Front wheel bearing grease (4WD models)* I R I R NOTE (8)
Free-running hub grease (4WD models)*IIIINOTE (9)
Body mountingsTTTTNOTE (10)
Body corrosionAnnually MA-41
NOTE: (1) Inspect at the first 10 years, and then every 2 years.
(2) The propeller shaft should be re-greased daily if it is immersed in water.
(3) ``Aiming Adjustment'' in EL section
(4) ``Front Wheel Alignment'' in FA section
(5) ``Brake Pedal and Bracket'' in BR section, ``Adjusting Clutch Pedal'' in CL section
(6) ``Maintenance Items'' in RS section
(7) ``FRONT AXLE Ð Drive Shaft'' in FA section
(8) ``Front Wheel Bearing'' in FA section
(9) ``Manual-lock Free-running Hub Ð 4WD'' and ``Auto-lock Free-running Hub Ð 4WD'' in FA section
(10) ``CAB AND REAR BODY'' in BT section
* Maintenance item with ``*'' should be performed more frequently according to ``Maintenance Under Severe Driving Condi-
tions''.
PERIODIC MAINTENANCE
Basic Schedule for Gasoline Engine Models
(Cont'd)
MA-7

Basic Schedule for Diesel Engine Models
Engine maintenance for vehicles which drive less than 30,000 km/year (18,000 miles/year)
Abbreviations: R= Replace, I = Inspect and correct or replace as necessary. [ ] = At the specified distance only.
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
page Perform at kilometer (mile)
interval or month interval,
whichever comes first.km x 1,000 7.5 15 22.5 30 37.5 45 52.5 60 67.5 75 82.5 90
(Miles x 1,000) (4.5) (9) (13.5) (18) (22.5) (27) (31.5) (36) (40.5) (45) (49.5) (54)
Months 6 12 18 24 30 36 42 48 54 60 66 72
Engine oil (Use recommended
oil)*RRRRRRRRRRRRMA-24
Engine oil filter*RRRRRRRRRRRRMA-24
Drive beltsIIIIIIMA-23
Engine anti-freeze coolant
(Ethylene glycol base)See NOTE (1)R MA-25
Cooling systemIIIIIIMA-26
Air cleaner filter (Viscous paper type)* R R MA-29
Intake & exhaust valve clearance I I I MA-23
Fuel linesI I I MA-28
Fuel filter*R R R MA-27
Injection nozzles See NOTE (2)MA-29
NOTE: (1) Replace at the first 75,000 km (45,000 miles) or 60 months, then every 45,000 km (27,000 miles) or 36 months,
whichever comes first.
(2) If engine power decreases, black exhaust is emitted or engine noise increases, inspect and if necessary, adjust
the fuel injection nozzles starting pressure and the spray pattern.
* Maintenance item with ``*'' should be performed more frequently according to ``Maintenance Under Severe Driving Condi-
tions''.
Chassis and body maintenance for vehicles which drive less than 30,000 km/year (18,000 miles/year)
Abbreviations: R= Replace, I = Inspect and correct or replace as necessary, L = Lubricate, T = Tighten. [ ] = At the specified distance only.
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
page Perform at kilometer (mile) interval or
month interval, whichever comes first.km x 1,000 15 30 45 60 75 90
(Miles x 1,000) (9) (18) (27) (36) (45) (54)
Months 12 24 36 48 60 72
Headlamp aimingIIIIIINOTE (3)
Wheel alignment (if necessary, rotate & balance wheels)IIIIIIMA-35, NOTE (4)
Brake pads, discs & other brake components*IIIIIIMA-36
Brake linings, drums & other brake components*IIIIIIMA-36
Foot brake, parking brake & clutch (For free play, stroke & operation)IIIIIINOTE (5)
Brake booster vacuum hoses, connections & check valve I I I MA-36
Brake & clutch systemsIIIIIIMA-32, 35
Brake & clutch fluid (For level & leaks)IIIIIIMA-32, 35
Brake fluid*R R R MA-35
Power steering fluid & lines (For level & leaks)IIIIIIMA-37
Manual steering gear oil (For level & leaks)IIIIIIMA-38
Air bag system See NOTE (1)NOTE (6)
Manual transmission oil (Inspect for leaks or replace)IIIII[R]MA-32
Transfer fluid and standard differential gear oil (for leaks)* I I I R I I MA-33, 34
Limited-slip differential (LSD) gear oil (For level and leaks)* I I I R I I MA-34
Steering gear, linkage, axle, suspension parts & propeller shaft*IIIIIIMA-37, 33
Greasing point of steering linkage, propeller
shaft & suspension*See NOTE (2)LLLLLLMA-33
Exhaust system*IIIIIIMA-32
Drive shaft*IIIIIINOTE (7)
Front wheel bearing grease (2WD models) I I I NOTE (8)
Front wheel bearing grease (4WD models)* I R I R I R NOTE (8)
Free-running hub grease (4WD models)*IIIIIINOTE (9)
Body mountingsTTTTTTNOTE (10)
Body corrosionAnnually MA-41
NOTE: (1) Inspect at the first 10 years, and then every 2 years.
(2) The propeller shaft should be re-greased daily if it is immersed in water.
(3) ``Aiming Adjustment'' in EL section
(4) ``Front Wheel Alignment'' in FA section
(5) ``Brake Pedal and Bracket'' in BR section, ``Adjusting Clutch Pedal'' in CL section
(6) ``Maintenance Items'' in RS section
(7) ``FRONT AXLE Ð Drive Shaft'' in FA section
(8) ``Front Wheel Bearing'' in FA section
(9) ``Manual-lock Free-running Hub Ð 4WD'' and ``Auto-lock Free-running Hub Ð 4WD'' in FA section
(10) ``CAB AND REAR BODY'' in BT section
* Maintenance item with ``*'' should be performed more frequently according to ``Maintenance Under Severe Driving Conditions''.
PERIODIC MAINTENANCE
MA-8

Engine maintenance for vehicles which drive more than 30,000 km/year (18,000 miles/year)
Abbreviations: R= Replace, I = Inspect and correct or replace as necessary.
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
page
Perform at kilometer (mile) interval.km x 1,000 7.5 15 22.5 30 37.5 45 52.5 60 67.5 75 82.5 90
(Miles x 1,000) (4.5) (9) (13.5) (18) (22.5) (27) (31.5) (36) (40.5) (45) (49.5) (54)
Engine oil (Use recommended oil)*RRRRRRRRRRRRMA-24
Engine oil filter*RRRRRRRRRRRRMA-24
Drive beltsIIIIIIMA-23
Engine anti-freeze coolant (Ethylene glycol base) See NOTE (1)R MA-25
Cooling systemI I I MA-26
Air cleaner filter (Viscous paper type)*R MA-29
Intake & exhaust valve clearance I I I MA-23
Fuel linesI MA-28
Fuel filter*R MA-27
Injection nozzles See NOTE (2)MA-29
NOTE: (1) Replace at the first 90,000 km (54,000 miles), then every 60,000 km (36,000 miles).
(2) If engine power decreases, black exhaust is emitted or engine noise increases, inspect and if necessary, adjust
the fuel injection nozzles starting pressure and the spray pattern.
* Maintenance item with ``*'' should be performed more frequently according to ``Maintenance Under Severe Driving Condi-
tions''.
Chassis and body maintenance for vehicles which drive more than 30,000 km/year (18,000 miles/year)
Abbreviations: R= Replace, I = Inspect and correct or replace as necessary, L = Lubricate, T = Tighten.
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
page
Perform at kilometer (mile) interval.km x 1,000 30 60 90 120
(Miles x 1,000) (18) (36) (54) (72)
Headlamp aimingI I I I NOTE (3)
Wheel alignment (if necessary, rotate & balance wheels) I I I IMA-35,
NOTE (4)
Brake pads, discs & other brake components* I I I I MA-36
Brake linings, drums & other brake components* I I I I MA-36
Foot brake, parking brake & clutch (For free play, stroke & operation) I I I I NOTE (5)
Brake booster vacuum hoses, connections & check valve I I MA-36
Brake & clutch systems I I I I MA-32, 35
Brake & clutch fluid (For level & leaks) I I I I MA-32, 35
Brake fluid*R R MA-35
Power steering fluid & lines (For level & leaks) I I I I MA-37
Manual steering gear oil (For level & leaks) I I I I MA-38
Air bag system See NOTE (1)NOTE (6)
Manual transmission oil (Inspect for leaks or replace) I I R I MA-32
Transfer fluid and standard differential gear oil (for leaks)* I R I R MA-33, 34
Limited-slip differential (LSD) gear oil (For level and leaks)* I R I R MA-34
Steering gear, linkage, axle, suspension parts & propeller shaft* I I I I MA-37, 33
Greasing point of steering linkage, propeller
shaft & suspension*See NOTE (2) L L L L MA-33
Exhaust system*I I I I MA-32
Drive shaft*I I I I NOTE (7)
Front wheel bearing grease (2WD models) I I NOTE (8)
Front wheel bearing grease (4WD models)* I R I R NOTE (8)
Free-running hub grease (4WD models)* I I I I NOTE (9)
Body mountingsT T T T NOTE (10)
Body corrosionAnnually MA-41
NOTE: (1) Inspect at the first 10 years, and then every 2 years.
(2) The propeller shaft should be re-greased daily if it is immersed in water.
(3) ``Aiming Adjustment'' in EL section
(4) ``Front Wheel Alignment'' in FA section
(5) ``Brake Pedal and Bracket'' in BR section, ``Adjusting Clutch Pedal'' in CL section
(6) ``Maintenance Items'' in RS section
(7) ``FRONT AXLE Ð Drive Shaft'' in FA section
(8) ``Front Wheel Bearing'' in FA section
(9) ``Manual-lock Free-running Hub Ð 4WD'' and ``Auto-lock Free-running Hub Ð 4WD'' in FA section
(10) ``CAB AND REAR BODY'' in BT section
* Maintenance item with ``*'' should be performed more frequently according to ``Maintenance Under Severe Driving Condi-
tions''.
PERIODIC MAINTENANCE
Basic Schedule for Diesel Engine Models
(Cont'd)
MA-9

Checking Drive Belts
1. Inspect for cracks, fraying, wear or oil. If necessary, replace
with a new one.
2. Inspect drive belt deflections by pushing midway between
pulleys.
Adjust if belt deflections exceed the limit.
Belt deflection:
Unit: mm (in)
Used belt deflection
Deflection of new
belt
LimitDeflection after
adjustment
Alternator 17 (0.67)10-12
(0.39 - 0.47)8-10
(0.31 - 0.39)
Air conditioner
compressor16 (0.63)10-12
(0.39 - 0.47)8-10
(0.31 - 0.39)
Power steering oil
pump15 (0.59)9-11
(0.35 - 0.43)7-9
(0.28 - 0.35)
Applied pushing
force98 N (10 kg, 22 lb)
Inspect drive belt deflections when engine is cold.
SMA916C
ENGINE MAINTENANCEKA
MA-15