2002 NISSAN TERRANO check engine

DIAGNOSTIC PROCEDURE 7
Self-diagnostic results:
ªLOCK MODEº displayed on CONSULT-II screen
Confirm SELF-DIAGNOSTIC
RESULTS ªLOCK MODEº is dis-
played on CONSULT-II screen.
1. Turn the ignition switch to OFF posi-
tion.
2. Turn the ignition key switch to ON posi-
tion with a registered key.
(Do not start engine.) Wait for 5 sec-
onds.
3. Return the key to the OFF position.
4. Repeat steps 2 and 3 twice (total of
three cycles).
5. Start the engine.
Can the engine start?
No
EYe s
System is OK.
(Now the system is
escaped from ªLOCK
MODEº.)
CHECK NATS IMMU INSTALLATION.
Refer to ªHow to Replace NATS IMMUº in
EL-208.
OK
ENG
Reinstall NATS IMMU cor-
rectly.
PERFORM INITIALISATION.
Perform initialisation with CONSULT-II.
For the initialisation procedure, refer to
ªCONSULT-II operation manual NATSº.
Can the system be initialized?
Note: If the initialisation is incompleted or
failed, CONSULT-II shows
mes-
sage on the screen.
No
EYe s
System is OK.
Go to DIAGNOSTIC PROCEDURE 4,
EL-202 to check ªCHAIN OF IMMU-KEYº.
YEL484B
YEL479B
H
H
H
H
NATS (Nissan Anti-Theft System)
Trouble Diagnoses (Cont'd)
EL-206

NVH Troubleshooting Chart Ð Engine Noise
Use the chart below to help you find the cause of the symptom.
1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified noise source.
If necessary, repair or replace these parts.
Location of
noiseType of
noiseOperating condition of engine
Source of
noiseCheck itemReference
page Before
warm-upAfter
warm-upWhen
startingWhen
idlingWhen
racingWhile
driving
To p o f
engine
Rocker
cover
Cylinder
headTicking or
clickingC AÐA BÐTappet
noiseValve clearanceMA section
(ªAdjusting
Intake &
Exhaust
Valve
Clearanceº,
ªENGINE
MAINTE-
NANCEº)
Rattle C A Ð A B CCamshaft
bearing
noiseCamshaft bushing clearance
Camshaft runoutEM-31, 31
Crankshaft
pulley
Cylinder
block (Side
of engine)
Oil panSlap or
knockÐAÐB BÐPiston pin
noisePiston and piston pin clear-
ance
Connecting rod bushing
clearanceEM-71, 73
Slap or rap A Ð Ð B B APiston slap
noisePiston-to-bore clearance
Piston ring side clearance
Piston ring end gap
Connecting rod bend and
torsionEM-75, 72,
72, 73
Knock A B C B B BConnecting
rod bearing
noiseConnecting rod bushing
clearance (Small end)
Connecting rod bearing
clearance (Big end)EM-73, 77
Knock A B Ð A B CMain bear-
ing noiseMain bearing oil clearance
Crankshaft runoutEM-78, 76
Front of
engine
Timing gear
coverTapping or
tickingAAÐBBBTiming gear
noiseTiming gear backlash EM-41
Front of
engineSqueaking
or fizzingA BÐBÐCOther drive
belts (Stick-
ing or slip-
ping)Drive belts deflectionMA section
(ªChecking
Drive Beltsº,
ªENGINE
MAINTE-
NANCEº) CreakingABABABOther drive
belts (Slip-
ping)Idler pulley bearing operation
Squall
CreakABÐBABWater pump
bearing
noiseWater pump bearing opera-
tionLC section
(ªWater
Pump
Inspectionº,
ªENGINE
COOLING
SYSTEMº)
A: Closely related B: Related C: Sometimes related Ð: Not related
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGZD
EM-9

1. Warm up engine.
2. Turn ignition switch OFF.
3. Using CONSULT-II, make sure no error codes are indicated for
self-diagnosis items. Refer to EC section, ªFuel Pressure
Releaseº.
IDo not disconnect CONSULT-II until the end of this operation;
it will be used to check engine rpm and for error detection at
the end of this operation.
4. Disconnect the negative battery terminal.
5. Remove the following parts.
IIntercooler
IThrottle body
IRocker cover
6. To prevent fuel from being injected during inspection, remove
fuel injection pump fuse [ENG CONT A/T (15A)] from fuse box
on the right side of engine compartment.
7. Remove glow plugs from all the cylinders.
IBefore removal, clean the surrounding area to prevent
entry of any foreign materials into the engine.
ICarefully remove glow plugs to prevent any damage or
breakage.
IHandle with care to avoid applying any shock to glow
plugs.
8. Install adapter (SST) to installation holes of glow plugs and
connect compression gauge for diesel engine.
:15-19N×m (1.5 - 2.0 kg-m, 11 - 14 ft-lb)
9. Connect battery negative terminal.
10. Set the ignition switch to ªSTARTº and crank. When gauge
pointer stabilizes, read compression pressure and engine rpm.
Repeat the above steps for each cylinder.
IAlways use a fully-charged battery to obtain specified
engine speed.
Unit: kPa (bar, kg/cm2, psi)/rpm
Standard MinimumDifference limit between
cylinders
2,942 (29.42, 30.0, 427)/
2002,452 (24.52, 25.0, 356)/
200294 (2.94, 3.0, 43)/200
IWhen engine rpm is out of the specified range, check the spe-
cific gravity of battery liquid. Measure again under corrected
conditions.
IIf engine rpm exceeds the limit, check valve clearance and
combustion chamber components (valves, valve seats, cylinder
head gaskets, piston rings, pistons, cylinder bores, cylinder
block upper and lower surfaces) and measure again.
11. Complete this operation as follows:
a. Turn the ignition switch to ªOFFº.
b. Disconnect battery negative terminal.
c. Replace glow plug oil seals and install glow plugs.
d. Install fuel injection pump fuse [ENG CONT A/T (15A)].
e. Connect battery negative terminal.
f. Using CONSULT-II make sure no error code is indicated for
items of self-diagnosis. Refer to EC section, ªTrouble Diagno-
sis Ð Indexº.
YEM039
SEM334G
MEASUREMENT OF COMPRESSION PRESSUREZD
EM-10

REMOVAL
1. Remove the following parts.
IDrain engine coolant. Refer to MA section, ªChanging Engine
Coolantº.
IRemove engine cover. Refer to the figure at left.
IRemove intercooler.
IRemove air hose (on throttle body side).
IRemove injection tube.
IRemove or relocate wires/harnesses and tubes/pipes.
2. Remove intake manifold in the reverse order of that shown in
the figure.
Inspection
Clean surface of intake manifold.
Use a reliable straightedge and feeler gauge to check the flatness
of intake manifold surface.
Intake manifold surface flatness:
Limit 0.2 mm (0.008 in)
INSTALLATION
1. Tighten intake manifold in the numerical order shown in the
figure.
:25-28N×m (2.5 - 2.9 kg-m, 18 - 20 ft-lb)
2. Install in the reverse order of removal.
SEM293G
SEM294G
INTAKE MANIFOLDZD
Removal and Installation (Cont'd)
EM-13

Trouble diagnosis of turbocharger
Preliminary check:
Check that the VNT control valve system has no malfunction. Refer
to EC section, ªECM Terminals and Reference Valueº in ªTROUBLE
DIAGNOSIS Ð GENERAL DESCRIPTIONº.
ICheck that the engine oil level is between MIN and MAX of the
dipstick. (When the engine oil amount is more than MAX, the
oil flows into the inlet duct through the blow-by gas passage,
and the turbocharger is misjudged failure.)
IAsk the customer if he/she always runs the vehicle in idle
engine speed to cool the oil down after driving.
IReplace the turbocharger assembly when any malfunction is
found after unit inspections specified in the table below.
IIf no malfunction is found after the unit inspections, judge that
the turbocharger body has no failure. Check the other parts
again.
Inspection item Inspection resultSymptom (when each inspection item
meets each inspection result)
Oil leak-
ageSmoke NoiseInsuffi-
cient
power/
accel-
eration
failure
Turbine wheelOil leaks.g
gg
Carbon is accumulated.g
qq
Friction with housing.gq
q
Blades are bent or broken.
Compressor wheelInside the air inlet is seriously contami-
nated by oil.qq
Friction with housing.gqq
Blades are bent or broken.
After checking both turbine and compressor,
inspect rotor shaft end play.There is resistance when the rotor shaft
is rotated by your fingertips.ggq
The rotor shaft sometimes does not
rotate by your fingertips.
There is too much play in the bearing.ggqg
Oil return portCarbon or sludge is accumulated in the
waste oil hole.g
gg
Operation of VNT control actuatorIThe actuator does not operate
smoothly when vacuum pressure is
gradually applied.
IStroke amount is not in compliance
with the vacuum pressure.q
: Large possibility
q: Medium possibility
g: Small possibility
INSTALLATION
1. Install catalyst.
:29-39N×m (2.9 - 3.3 kg-m, 21 - 23 ft-lb)
Place the protruding area of the gasket between the turbocharger
and the exhaust outlet upwards, and install the lipped side to the
turbocharger side. Refer to the figure, EM-14.
2. Install in the reverse order of removal.
CATALYST AND TURBOCHARGERZD
Inspection (Cont'd)
EM-17

3. Remove injection tube and injection nozzle assembly. Refer to
EC section, ªInjection Tube and Injection Nozzleº in ªBASIC
SERVICE PROCEDUREº.
4. Remove the camshaft.
IPlace distinguishing marks on the right and left sides with paint.
ILoosen and remove the installation bolt in reverse order shown
in the figure.
5. Remove the adjusting shim and valve lifter.
IRemove by taking notice of the installation position, and place
outside engine in order to prevent confusion.
Inspection
VISUAL CHECK OF CAMSHAFT
ICheck the camshaft for one sided wear or scratches.
IReplace the camshaft if there are abnormalities.
CAMSHAFT RUNOUT
IPrepare V-block on a flat surface and secure camshaft journals
No. 1 and No. 5.
ISet the dial gauge vertically on journal No. 3.
IRotate camshaft in one direction by hand, then read needle
movement on dial indicator.
Camshaft bend value is 1/2 of needle movement.
Limit: 0.02 mm (0.0008 in)
HEIGHT OF CAM NOSE
Measure by using a micrometer.
Standard:
Intake
40.488 0.02 mm (1.5940 0.0008 in)
Exhaust
40.850 0.02 mm (1.6083 0.0008 in)
CAMSHAFT OIL CLEARANCE
Measure by using a micrometer.
Cam journal outer diameter:
Standard
29.931 - 29.955 mm (1.1784 - 1.1793 in) dia.
FEM012
FEM013
FEM014
FEM015
CAMSHAFTZD
Removal (Cont'd)
EM-31

Unit: mm (in)
GradePiston crown
depressionGasket thick-
ness*1No. of notches
1Less than þ0.078
(þ0.0031)*20.65 (0.0256) 1
2More than þ0.078
(þ0.0031)*30.70 (0.0276) 2
*1: Thickness of gasket tightened with head bolts
*2: Indicates values such as þ0.080 mm (þ0.0031 in).
*3: Indicates values such as þ0.075 mm (þ0.0030 in).
2. Install idler gear and idler shaft.
ICheck that the counter marks with cam gear, ªAAº and ªBBº, are
located on the front side of the engine.
Refer to EM-52.
CAUTION:
Since idler gear cannot be installed or removed with cylinder
head assembly mounted on the engine because of interfer-
ence with gear case, make sure that there are no reverse
installations or uninstalled parts.
3. Install cylinder head assembly.
1) Attach gasket onto the rear of gear case.
2) Install O-ring to the rear of gear case.
3) Align cylinder head assembly with dowel pin of cylinder block
and install.
CAUTION:
IMake sure the O-ring does not fall off. Be careful not to
drop the O-ring.
IDo not damage gasket located at the front.
4. Position cylinder head assembly close to the rear of the gear
case.
1) Install cylinder head bolts to the front and rear of cylinder head
respectively, and tighten to the specified torque.
:40-49N×m (4.0 - 5.0 kg-m, 29 - 36 ft-lb)
2) Loosen cylinder head bolts completely.
3) Install gear case mounting bolts to 2 positions shown by arrows
in the figure, and tighten to the specified torque.
: Less than 9.8 N×m (1.0 kg-m, 87 in-lb)
5. Tighten cylinder head bolts in the order indicated in the figure.
1) Apply engine oil to installation bolt threads and washers.
2) Tighten bolts to 98 to 102 N×m (10.0 to 10.5 kg-m, 73 to 75 ft-
lb).
3) Loosen bolts completely until the torque becomes 0 N×m(0
kg-m, 0 in-lb).
CAUTION:
For procedure 3), loosen bolts in the reverse order as indi-
cated in the figure.
4) Tighten bolts to 40 to 44 N×m (4.0 to 4.5 kg-m, 29 to 32 ft-lb).
5) Tighten bolts at the angle of 90 to 95É (target is 95É). (Angle
tightening)
FEM061
FEM062
FEM055
CYLINDER HEADZD
Installation (Cont'd)
EM-55

6) Once again, tighten bolts at the angle of 90 to 95É (target is
95É). (Angle tightening)
CAUTION:
Perform the following procedure to check turning angle of
angle tightening, and do not judge by visual check.
ANGLE TIGHTENING PROCEDURE
With protractor
IMake counter marks on the bolt head of cylinder head and cyl-
inder head surface with paint, and check the turning angle.
With angle wrench (SST)
ICheck the turning angle using angle indicator of angle wrench.
6. Loosen gear case mounting bolts which were tightened in 3) of
procedure 4, retighten them to the specified torque.
7. Install glow plug.
I2 different types (manufacturers) of glow plugs are provided in
parallel. (Refer to the figure for identification.)
IDo not install 2 different types of glow plugs in the engine. Make
sure that the same glow plugs are installed.
IUsing reamer, remove the carbon adhering to the installation
hole of glow plug, and install glow plug.
FEM063
FEM064
CYLINDER HEADZD
Installation (Cont'd)
EM-56