accelerator NISSAN PICK-UP 1998 User Guide

CAUTION:
lWhen installing rocker arms, camshaft and oil seal, lubri-
cate contacting surfaces with new engine oil.
lWhen tightening cylinder head bolts and rocker shaft
bolts, lubricate bolt threads and seat surfaces with new
engine oil.
lHydraulic valve lifters are installed in each rocker arm.
If hydraulic valve lifter is kept on its side, even when
installed in rocker arm, there is a risk of air entering it.
When rocker arms are removed, stand them straight up
or soak them in new engine oil.
lDo not disassemble hydraulic valve lifter.
lAttach tags to valve lifters so as not to mix them up.
Removal
1. Release fuel pressure. Refer to EC section (``Fuel Pressure
Release'').
2. Drain coolant from radiator and drain plug of block.
3. Remove the following parts.
lPower steering drive belt
lPower steering pump, idler pulley and power steering brack-
ets
lVacuum hoses of swirl control valve and pressure control
solenoid valve
lAccelerator wire bracket
4. Remove bolts which hold intake manifold collector to intake
manifold.
5. Remove bolts which hold intake manifold to cylinder head
while raising collector upwards.
6. Remove exhaust manifold cover and exhaust manifold.
7. Remove rocker cover.
lWhen removing rocker cover, do not hit rocker cover
against rocker arm.
8. Set No. 1 piston at TDC on its compression stroke.
SEM878BA
SEM868BA
.NG
SEM216C
CYLINDER HEADKA
Rear Oil Seal
EM-25

WARNING:
lPosition vehicle on a flat and solid surface.
lPlace chocks at front and back of rear wheels.
lDo not remove engine until exhaust system has com-
pletely cooled off.
Otherwise, you may burn yourself and/or fire may break
out in fuel line.
lBefore disconnecting fuel hose, release fuel pressure.
Refer to EC section (``Fuel Pressure Release'').
lBe sure to hoist engine and transmission in a safe man-
ner.
lFor engines not equipped with engine slingers, attach
proper slingers and bolts described in PARTS CATA-
LOG.
CAUTION:
lWhen lifting engine, be sure to clear surrounding parts.
Take special care near accelerator wire casing, brake
lines and brake master cylinder.
lIn lifting the engine, always use engine slingers in a safe
manner.
lFor 4WD models, apply sealant between engine and
transmission. Refer to MT section (``Removal and Instal-
lation'').
SEM601FA
ENGINE REMOVALKA
EM-36

Removal
1. Drain coolant from engine block and radiator. Refer to MA
section (``Changing Engine Coolant'', ``ENGINE MAINTE-
NANCE'').
2. Release fuel pressure. Refer to EC section (``Fuel Pressure
Release'').
3. Remove negative battery cable.
4. Remove hood. Refer to BT section.
5. Remove power steering drive belt, alternator drive belt and
A/C compressor drive belt.
6. Remove radiator. Refer to LC section (``Radiator'', ``ENGINE
COOLING SYSTEM'').
7. Remove exhaust manifold heat shield.
8. Disconnect exhaust system from exhaust manifold.
9. Discharge refrigerant. Refer to HA section (``R-134a Service
Procedure'', ``SERVICE PROCEDURES'').
10. Disconnect refrigerant lines. Refer to HA section (``Refriger-
ant Lines'', ``SERVICE PROCEDURES'').
11. Disconnect accelerator wire, vacuum hoses, electrical
connectors, heater hoses and vacuum booster hose.
12. Remove four power steering pump bolts.
13. Remove transmission. Refer to MT section (``Removal'',
``REMOVAL AND INSTALLATION'').
14. Remove LH and RH engine mounts.
15. Remove engine.
Installation
lInstall in reverse order of removal.
SEM602F
SEM603F
SEM604F
ENGINE REMOVALKA
EM-37

Removal
Removal order and pointsApplied model
2WD 4WD
1 Remove undercover.jj
2 Drain engine oil.jj
3Remove front propeller shaft
from front differential carrier.Ðj
4Remove front drive shaft fix-
ing bolts (RH & LH).Ðj
5Remove front suspension
crossmember.jj
6Remove differential front
mounting bolts (RH & LH)
and rear mounting bolts.Ðj
7Remove front differential car-
rier.ÐjRemoval order and pointsApplied model
2WD 4WD
8Remove front differential car-
rier mounting bracket.Ðj
9Remove transmission to rear
engine mounting bracket
nuts (RH & LH).jj
10Remove engine mounting
bolts or nuts (RH & LH).jj
11Lift up engine.
If necessary, disconnect
exhaust tube.jj
12 Remove oil pan.jj
WARNING:
lPlace vehicle on a flat and solid surface.
lPlace chocks at front and rear of rear wheels.
lYou should not remove oil pan until exhaust system and
cooling system have completely cooled off.
Otherwise, you may burn yourself and/or fire may break
out in the fuel line.
lWhen removing front and/or rear engine mounting bolts
or nuts, lift up slightly engine for safety work.
CAUTION:
lIn lifting engine, be careful not to hit against adjacent
parts, especially against accelerator wire casing end,
brake tube and brake master cylinder.
lFor tightening torque, refer to EM-71, MT and PD sec-
tions.
Remove oil pan bolts in order shown.
Installation
1. Install the oil pan gasket with the coated surface facing the
cylinder block and the notch facing the rear of the engine.
2. Tighten all bolts in reverse order of removal. For tightening
torque of oil pan and correct installing direction of drain plug
washer, refer to EM-71.
DEM022
DEM023
OIL PANTD
EM-52

WARNING:
lPosition vehicle on a flat and solid surface.
lPlace chocks at front and back of rear wheels.
lDo not remove engine until exhaust system has com-
pletely cooled off.
Otherwise, you may burn yourself and/or fire may break
out in fuel line.
lBe sure to hoist engine and transmission in a safe man-
ner.
lFor engines not equipped with engine slingers, attach
proper slingers and bolts described in PARTS CATA-
LOG.
CAUTION:
lWhen lifting engine, be sure to clear surrounding parts.
Take special care near accelerator wire casing, brake
lines and brake master cylinder.
lIn lifting the engine, always use engine slingers in a safe
manner.
lFor 4WD models, apply sealant between engine and
transmission. Refer to MT section (``Removal and Instal-
lation'').
SEM613FN
ENGINE REMOVALTD
EM-69

ACCELERATOR CONTROL, FUEL &
EXHAUST SYSTEMS
SECTIONFE
CONTENTS
PREPARATION/ACCELERATOR CONTROL
SYSTEM..................................................................... 1
Special Service Tool .............................................. 1
Accelerator Control System ................................... 1Adjusting Accelerator Wire .................................... 2
FUEL SYSTEM.......................................................... 3
EXHAUST SYSTEM.................................................. 5
FE

Special Service Tool
Tool number
Tool nameDescription
KV10114400
Heated oxygen sensor
wrench
NT636
Loosening or tightening heated oxygen sen-
sor
a = 22 mm (0.87 in)
Accelerator Control System
CAUTION:
lWhen removing accelerator wire, make a mark to indicate lock nut's initial position.
lCheck that throttle valve opens fully when accelerator pedal is fully depressed. Also check that
it returns to idle position when pedal is released.
lCheck accelerator control parts for improper contact with any adjacent parts.
lWhen connecting accelerator wire, be careful not to twist or scratch wire.
SFE454A
PREPARATION/ACCELERATOR CONTROL SYSTEM
FE-1

Adjusting Accelerator Wire
1. Loosen lock nut, and tighten adjusting nut until throttle drum
starts to move.
2. From that position turn back adjusting nut 1.5 to 2 turns, and
fasten it with lock nut.
SFE248AB
PREPARATION/ACCELERATOR CONTROL SYSTEM
FE-2

KEY TO SYMBOLS SIGNIFYING MEASUREMENTS OR PROCEDURES
Symbol Symbol explanation Symbol Symbol explanation
Check after disconnecting the connector
to be measured.Procedure with CONSULT
Check after connecting the connector to
be measured.Procedure without CONSULT
Insert key into ignition switch.A/C switch is ``OFF''.
Remove key from ignition switch.A/C switch is ``ON''.
Turn ignition switch to ``OFF'' position.Fan switch is ``ON''. (At any position
except for ``OFF'' position)
Turn ignition switch to ``ON'' position.Fan switch is ``OFF''.
Turn ignition switch to ``START'' position.Apply positive voltage from battery with
fuse directly to components.
Turn ignition switch from ``OFF'' to ``ACC''
position.Drive vehicle.
Turn ignition switch from ``ACC'' to ``OFF''
position.Disconnect battery negative cable.
Turn ignition switch from ``OFF'' to ``ON''
position.Depress brake pedal.
Turn ignition switch from ``ON'' to ``OFF''
position.Release brake pedal.
Do not start engine, or check with engine
stopped.Depress accelerator pedal.
Start engine, or check with engine run-
ning.Release accelerator pedal.
Apply parking brake.
Pin terminal check for SMJ type ECM
and TCM control unit connectors.
For details regarding the terminal
arrangement, refer to the foldout page.Release parking brake.
Check after engine is warmed up suffi-
ciently.
Voltage should be measured with a volt-
meter.
Circuit resistance should be measured
with an ohmmeter.
Current should be measured with an
ammeter.
HOW TO FOLLOW FLOW CHART IN TROUBLE DIAGNOSES
How to Follow This Flow Chart (Cont'd)
GI-33

A
A/C HFC134a (R134a) system precaution .....HA-2
A/C HFC134a (R134a) system service
procedure ................................................. HA-48
A/C HFC134a (R134a) system service
tools............................................................ HA-8
A/C HFC134a system service
equipment precaution .............................. HA-10
A/C air flow .................................................. HA-14
A/C component layout ................................. HA-13
A/C compressor clutch removal and
installation ................................................ HA-60
A/C compressor precaution ........................... HA-6
A/C compressor special service tool ............. HA-6
A/C control linkage adjustment
(manual A/C) ............................................ HA-45
A/C control operation (manual A/C) ............ HA-16
A/C diagnostic work flow
(manual A/C) ............................................ HA-17
A/C lubricant (R134a) .................................. HA-50
A/C operational check ................................. HA-18
A/C performance chart ................................ HA-26
A/C performance test diagnoses ................. HA-24
A/C relay ...................................................... HA-44
A/C switch.............................................. HA-16, 43
A/C symptom chart (manual A/C) ............... HA-20
A/C trouble diagnoses (manual A/C)........... HA-17
AAC/V - Wiring diagram ............................ EC-133
ABS (anti-lock brake system) ...................... BR-32
ABS - Wiring diagram .................................. BR-42
Accelerator control system............................. FE-1
Accelerator wire adjustment........................... FE-2
Air bag disposal ........................................... RS-14
Air bag precautions ......................................... GI-1
Air bag ........................................................... RS-6
Air bleeding (hydraulic clutch)........................ CL-5
Air bleeding for brake system........................ BR-4
Air cleaner filter replacement
(KA24 engine).......................................... MA-19
Air cleaner filter replacement
(TD25 engine).......................................... MA-29
Air conditioner cut control ............................ EC-18
Air flow meter - See Mass air flow
sensor ...................................................... EC-89
Alternator ...................................................... EL-41
Angular tightening application ....................... EM-1
Antenna ...................................................... EL-146
Anti-lock brake system - Wiring
diagram .................................................... BR-42
Audio and A/C control removal and
installation - See Instrument panel .......... BT-12
Auto-lock free-running hub........................... FA-15
Auxiliary air control (AAC) valve................ EC-131
Axle housing (rear) ........................................ RA-5
B
Back window .................................................BT-24Back-up lamp switch (M/T)............................ MT-9
Ball joint front axle ....................................... FA-34
Battery .......................................................... EL-18
Baulk ring (M/T) (FS5R30A)........................ MT-36
Baulk ring (M/T) (FS5W71C)....................... MT-15
Blower motor................................................ HA-43
Blower resistor ............................................. HA-43
Body alignment ............................................ BT-43
Body mounting ............................................. BT-41
Boring/horning cylinder block ...................... EM-41
Brake booster .............................................. BR-15
Brake fluid change ......................................... BR-3
Brake fluid level and line check..................... BR-3
Brake fluid level ........................................... MA-35
Brake hydraulic line ....................................... BR-5
Brake inspection .......................................... MA-36
Brake lines and cables inspection .............. MA-35
Brake lining wear temporary checking ........ MA-37
Brake master cylinder .................................. BR-12
Brake pedal.................................................. BR-10
Bulb specifications...................................... EL-252
Bumper, front ................................................. BT-5
Bumper, rear .................................................. BT-8
C
CHARGE - Wiring diagram ...........................EL-34
CIGAR - Wiring diagram ............................ EL-133
CLOCK - Wiring diagram ........................... EL-134
CMPS - Wiring diagram............................... EC-85
CONSULT for ECCS ................................... EC-45
CONSULT general information ..................... GI-34
Cab body ...................................................... BT-40
Camshaft inspection (KA24 engine) ........... EM-28
Camshaft inspection (TD25 engine) ........... EM-85
Camshaft position sensor (CMPS) .............. EC-82
Canister - See EVAP canister ..................... EC-19
Center bearing assembly
(propeller shaft) ........................................ PD-10
Center bearing disassembly
(propeller shaft) .......................................... PD-9
Center case (Transfer) ................................... TF-8
Charging system .......................................... EL-34
Chassis and body maintenance .................. MA-32
Cigarette lighter .......................................... EL-133
Circuit breaker .............................................. EL-13
Clock........................................................... EL-134
Clutch cover ................................................. CL-13
Clutch disc.................................................... CL-12
Clutch fluid level .......................................... MA-32
Clutch master cylinder ................................... CL-6
Clutch operating cylinder ............................... CL-8
Clutch pedal ................................................... CL-4
Clutch release bearing ................................... CL-9
Clutch release mechanism............................. CL-9
Clutch withdrawal lever .................................. CL-9
Collision diagnosis (2WD models)............... RS-21
Collision diagnosis (4WD models)............... RS-42
ALPHABETICAL INDEX
IDX-2