Engine compartment NISSAN ALMERA N16 2003 Electronic Repair Manual

Engine Compartment
There are several reasons a vehicle or engine vibration could
cause an electrical complaint. Some of the things to check for are:
Connectors not fully seated.
Wiring harness not long enough and is being stressed due to
engine vibrations or rocking.
Wires laying across brackets or moving components.
Loose, dirty or corroded ground wires.
Wires routed too close to hot components.
To inspect components under the hood, start by verifying the integ-
rity of ground connections. (Refer to GROUND INSPECTION
described later.) First check that the system is properly grounded.
Then check for loose connection bygently shakingthe wiring or
components as previously explained. Using the wiring diagrams
inspect the wiring for continuity.
Behind The Instrument Panel
An improperly routed or improperly clamped harness can become
pinched during accessory installation. Vehicle vibration can aggra-
vate a harness which is routed along a bracket or near a screw.
Under Seating Areas
An unclamped or loose harness can cause wiring to be pinched by
seat components (such as slide guides) during vehicle vibration. If
the wiring runs under seating areas, inspect wire routing for pos-
sible damage or pinching.
SGI842
HEAT SENSITIVENJGI0005S0203The owner’s problem may occur during hot weather or after car has
sat for a short time. In such cases you will want to check for a heat
sensitive condition.
To determine if an electrical component is heat sensitive, heat the
component with a heat gun or equivalent.
Do not heat components above 60°C (140°F).If incident occurs
while heating the unit, either replace or properly insulate the com-
ponent.
SGI843
FREEZINGNJGI0005S0204The customer may indicate the incident goes away after the car
warms up (winter time). The cause could be related to water freez-
ing somewhere in the wiring/electrical system.
There are two methods to check for this. The first is to arrange for
the owner to leave his car overnight. Make sure it will get cold
enough to demonstrate his complaint. Leave the car parked out-
side overnight. In the morning, do a quick and thorough diagnoses
of those electrical components which could be affected.
HOW TO PERFORM EFFICIENT DIAGNOSES FOR AN ELECTRICAL INCIDENT
Incident Simulation Tests (Cont’d)
GI-24

NJMA0043
The following tables show the normal maintenance schedule. Depending upon weather and atmospheric
conditions, varying road surfaces, individual driving habits and vehicle usage, additional or more frequent
maintenance may be required.
Periodic maintenance beyond the last period shown on the tables requires similar maintenance.
Maintenance Schedule for Petrol Engines
(Annual Mileage < 30,000 km/year)
NJMA0043S01QG15DE/QG18DE ENGINESNJMA0043S0101Abbreviations: R = Replace I = Inspect: Correct or replace if necessary
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Refer-
ence
pages Perform on a kilometer basis, but on
an annual basis when driving less than
15,000 km (9,000 miles) per yearkmx1,000
(miles x 1,000)
Months15
(9)
1230
(18)
2445
(27)
3660
(36)
4875
(45)
6090
(54)
72105
(63)
84120
(72)
96
Engine compartment and under vehicle
Engine oil (Use recommended oil)★RRRRRRRRLC-8
Engine oil filter (Use NISSAN genuine
part or equivalent)★RRRRRRRRLC-9
Drive beltsIIIIIIIIEM-11
Cooling systemIIIIIIIILC-12
Engine anti-freeze coolant (Use genu-
ine NISSAN Anti-Freeze Coolant (L250)
or equivalent)See NOTE (1) I R I LC-17
Air cleaner filter★R R EM-14
Intake and exhaust valve clearance See NOTE (2) EM-42
Fuel and EVAP vapour linesIIIIFE-4/
EC-400
Spark plugsRRRR—
Fuel filter See NOTE (3) FE-8
Heated oxygen sensor (Exhaust gas
sensor)★See NOTE (4)GI-41,
EC-149
or
EC-506
NOTE:
(1) First replace at 90,000 km (54,000 miles)/60 months, then every 60,000km (36,000 miles)/48 months. Perform “I” (Check-
ing the mixture ratio and correcting the mixture ratio if necessary) at themiddle of replacement interval.
(2) Periodic maintenance is not required. However, if valve noise increases, check valve clearance.
(3) Fuel filter is maintenance-free. For service procedures, refer to FE section.
(4) Perform only according to “Maintenance Under Severe Driving Conditions” for models without Euro-OBD system. For
models with Euro-OBD system, periodic maintenance is not required.
★Maintenance items with “★” should be performed more frequently according to “Maintenance Under Severe Driving Con-
ditions”.
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PERIODIC MAINTENANCE (FOR EUROPE)
Maintenance Schedule for Petrol Engines (Annual Mileage < 30,000 km/year)
MA-7

Maintenance Schedule for Diesel Engines
(Annual Mileage < 30,000 km/year)
=NJMA0043S02YD22DDT ENGINENJMA0043S0201Abbreviations: R = Replace I = Inspect: Correct or replace if necessary
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference pages Perform on a kilometer basis, but
on an annual basis when driving
less than 20,000 km (12,000
miles) per year.kmx1,000
(miles x 1,000)
Months20
(12)
1240
(24)
2460
(36)
3680
(48)
48100
(60)
60120
(72)
72
Engine compartment and under vehicle
Engine oil (Use recommended
oil)★RRRRRR LC-30
Engine oil filter (Use Eco filter or
equivalent)★SeeNOTE(1)RRRRRR LC-31
Drive beltsIIIIIIEM-11
Cooling systemIIIIII LC-37
Engine anti-freeze coolant (Use
genuine NISSAN Anti-freeze
Coolant (L250) or equivalent)See NOTE (2) I I LC-43
Air cleaner filter★R R EM-14
Intake & exhaust valve clearance See NOTE (3) EM-59
Fuel lines I I I FE-15
Injection nozzles See NOTE (4) EC-21
Fuel filter★R R R FE-15
NOTE:
(1) Oil filter element assembly and O-ring seal are replacement parts.
(2) First replace at 100,000 km (60,000 miles)/60 months, then every 60,000 km (36,000 miles)/36 months. After first replacement,
perform “I” (checking the mixture ratio and correcting the mixture ratio if necessary) at the middle of replacement interval.
(3) If valve noise increases, check valve clearance.
(4) If engine power decreases, black exhaust smoke is emitted or engine noise increases, check injection nozzles and if
necessary, replace injection nozzle assembly.
★Maintenance items with “★” should be performed more frequently according to “Maintenance Under Severe Driving Con-
ditions”.
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PERIODIC MAINTENANCE (FOR EUROPE)
Maintenance Schedule for Diesel Engines (Annual Mileage < 30,000 km/year)
MA-9

Maintenance Schedule for Petrol Engines
(Annual Mileage > 30,000 km/year)
=NJMA0043S04QG15DE/QG18DE ENGINESNJMA0043S0401Abbreviations: R = Replace I = Inspect: Correct or replace if necessary
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Refer-
ence
pages Perform on a kilometer basis only.kmx1,000
(miles x 1,000)15
(9)30
(18)45
(27)60
(36)75
(45)90
(54)105
(63)120
(72)
Engine compartment and under vehicle
Engine oil (Use recommended oil)★RRRRRRRRLC-8
Engine oil filter (Use NISSAN genuine
part or equivalent)★RRRRRRRRLC-9
Drive beltsIIIIIIIIEM-11
Cooling systemIIIILC-12
Engine anti-freeze coolant (Use genu-
ine NISSAN Anti-Freeze Coolant (L250)
or equivalent)See NOTE (1) I R I LC-17
Air cleaner filter★R R EM-14
Intake & exhaust valve clearance See NOTE (2) EM-42
Fuel and EVAP vapor lines I IFE-4/
EC-400
Spark plugsRRRR—
Fuel filter See NOTE (3) FE-8
Heated oxygen sensor★See NOTE (4)GI-41/
EC-149
or
EC-506
NOTE:
(1) First replace at 90,000 km (54,000 miles), then every 60,000 km (36,000miles). Perform “I” (checking the mixture ratio and
correcting the mixture ratio if necessary) at the middle of replacement interval.
(2) Periodic maintenance is not required. However, if valve noise increases, check valve clearance.
(3) Fuel filter is maintenance-free. For service procedures, refer to FE section.
(4) Perform only according to “Maintenance Under Severe Driving Conditions” for models without Euro-OBD system. For
models with Euro-OBD system, periodic maintenance is not required.
★Maintenance items with “★” should be performed more frequently according to “Maintenance Under Severe Driving Con-
ditions”.
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PERIODIC MAINTENANCE (FOR EUROPE)
Maintenance Schedule for Petrol Engines (Annual Mileage > 30,000 km/year)
MA-13

Maintenance Schedule for Diesel Engines
(Annual Mileage > 30,000 km/year)
=NJMA0043S05YD22DDT ENGINENJMA0043S0501Abbreviations: R = Replace I = Inspect: Correct or replace if necessary
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference pages
Perform on a kilometer basis
only.kmx1,000
(miles x 1,000)20
(12)40
(24)60
(36)80
(48)100
(60)120
(72)
Engine compartment and under vehicle
Engine oil (Use recommended
oil)★RRRRRR LC-30
Engine oil filter (Use Eco filter or
equivalent)★SeeNOTE(1)RRRRRR LC-31
Drive beltsIIIIIIEM-11
Cooling systemIIIIII LC-37
Engine anti-freeze coolant (Use
genuine NISSAN Anti-Freeze
Coolant (L250) or equivalent)See NOTE (2) I I LC-43
Air cleaner filter★R R EM-14
Intake & exhaust valve clearance See NOTE (3) EM-59
Fuel lines I I FE-15
Injection nozzles See NOTE (4) EC-21
Fuel filter★R R FE-15
NOTE:
(1) Oil filter element assembly and O-ring seal are replacement parts.
(2) First replace at 100,000 km (60,000 miles), then every 60,000 km (36,000 miles). After first replacement, perform “I” (check-
ing the mixture ratio and correcting the mixture ratio if necessary) at themiddle of replacement interval.
(3) If valve noise increases, check valve clearance.
(4) If engine power decreases, black exhaust smoke is emitted or engine noise increases, check injection nozzles and if
necessary, replace injection nozzle assembly.
★Maintenance items with “★” should be performed more frequently according to “Maintenance Under Severe Driving Con-
ditions”.
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PERIODIC MAINTENANCE (FOR EUROPE)
Maintenance Schedule for Diesel Engines (Annual Mileage > 30,000 km/year)
MA-15

NJEM0053
JEM111G
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-39, “CONSULT-II Inspection
Procedure”.
Do 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. To prevent fuel from being injected during inspection, remove
fuel injection pump fuse [ENG CONT2 (20A)] from fuse box on
the left side of engine compartment.
6. Remove glow plugs from all the cylinders.
Before removal, clean the surrounding area to prevent
entry of any foreign materials into the engine.
Carefully remove glow plugs to prevent any damage or
breakage.
Handle with care to avoid applying any shock to glow
plugs.
SEM112G
7. Install adapter (SST) to installation holes of glow plugs and
connect compression gauge for diesel engine.
: 18 - 21 N·m (1.8 - 2.2 kg-m, 13 - 15 ft-lb)
8. Connect battery negative terminal.
9. Set the ignition switch to “START” and crank. When gauge
pointer stabilizes, read compression pressure and engine rpm.
Repeat the above steps for each cylinder.
Always use a fully-charged battery to obtain specified
engine speed.
Unit: kPa (bar, kg/cm2, psi)/rpm
Standard MinimumDifference limit between
cylinders
3,138 (31.38, 32.0, 455)/
2002,452 (24.52, 25.0, 356)/
200490 (4.90, 5.0, 71)/200
When engine rpm is out of the specified range, check the spe-
cific gravity of battery liquid. Measure again under corrected
conditions.
If engine rpm exceeds the limit, check valve clearance and
combustion chamber components (valves, valve seats, cylin-
der head gaskets, piston rings, pistons, cylinder bores, cylin-
der block upper and lower surfaces) and measure again.
10. Complete this operation as follows:
a. Turn the ignition switch to “OFF”.
b. Disconnect battery negative terminal.
c. Install glow plugs.
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MEASUREMENT OF COMPRESSION PRESSUREYD
EM-9

JEM238G
FUEL PIPINGNJEM0109S02RemovalNJEM0109S0201To prevent fuel from flowing out, plug the opening of the hose
with a blind plug after disconnection.
Be careful not to spill fuel in the engine compartment.
InstallationNJEM0109S0202After repairing, bleed air in pipes by shifting priming pump up
and down until the touch is heavy.
For further air bleeding, idle at least 1 minute or more.
SEM489G
INTAKE MANIFOLDNJEM0109S03RemovalNJEM0109S0301Loosen bolts and nuts in the reverse order of that shown in the
figure.
InstallationNJEM0109S0302When stud bolts come off, install with the following torque:
: 10 - 11 N·m (1.0 - 1.2 kg-m, 87 - 104 in-lb)
Tighten fixing bolts in the numerical order shown in the figure.
EGR VOLUME CONTROL VALVENJEM0109S04Handle with care avoiding any shocks.
Do not disassemble or adjust.
YEM054
WATER HOSENJEM0109S05InstallationNJEM0109S0501Install water hose by referring to identification marks; avoiding
twisting.
When an insert stopper is not provided with the pipe, insert the
hose up to dimension A. When the pipe is shorter than dimen-
sion A, insert hose fully until it reaches the end.
Dimension A: 25 - 30 mm (0.984 - 1.181 in)
When an insert stopper is provided on the pipe side, insert the
hose until it reaches the bulge.
When marking is provided on the pipe, insert hose until it cov-
ers half of the marking.
INTAKE MANIFOLDYD
Removal and Installation (Cont’d)
EM-34

Thermostat
REMOVAL AND INSTALLATIONNJLC0021
SEM861F
Be careful not to spill coolant over engine compartment. Use
a rag to absorb coolant.
1. Drain engine coolant.
Refer to LC-17, “Changing Engine Coolant”.
2. Remove water inlet, then take out thermostat.
SEM862F
3. Install gum ring to thermostat.
SEM863F
4. Install thermostat with jiggle valve or air bleeder at upper side.
After installation, run engine for a few minutes, and check
for leaks.
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ENGINE COOLING SYSTEMQG
Thermostat
LC-15

Thermostat
REMOVAL AND INSTALLATIONNJLC0059
NLC099
Be careful not to spill coolant over engine compartment.
Use a rag to absorb coolant.
1. Drain engine coolant. Refer to LC-43, “Changing Engine Cool-
ant”.
2. Remove exhaust manifold cover.
3. Remove water inlet.
4. Remove thermostat.
JLC300B
5. Install thermostat with jiggle valve facing upward.
Carefully install the rubber ring to the flange of the
thermostat, making sure it does not slip out of place.
6. After installation and refilling coolant, run engine for a few
minutes, and check for leaks.
ENGINE COOLING SYSTEMYD
Thermostat
LC-40

SMT941D
InstallationNJMT0090S021. Put transaxle under the engine compartment.
2. Set chain block on transaxle and hang.
3. Lift up transaxle case so as not to hit against the side frame
and suspension member.
4. Assemble transaxle to engine.
Tighten LH mount, rear side mount and center member bolts.
Refer to EM-67, “Removal and Installation”.
Tighten clutch operating cylinder bolts. Refer to CL-15, “Instal-
lation”.
Tighten starter motor bolts. Refer to SC-22, “Removal and
Installation”.
Install drive shafts. Refer to AX-12, “Installation”.
Tighten all transaxle bolts and any part removed.
SMT932D
MODEL YD ENGINENJMT0090S0201
Bolt No. Tightening torque N·m (kg-m, ft-lb) “” mm (in)
140 - 49 (4.0 - 5.0, 29 - 36) 70 (2.76)
230.4 - 36.3 (3.1 - 3.7, 23 - 26) 60 (2.36)
330.4 - 36.3 (3.1 - 3.7, 23 - 26) 55 (2.17)
REMOVAL AND INSTALLATIONRS5F50A
Installation
MT-28