2001 NISSAN ALMERA cooling

REMOVAL AND INSTALLATION=NJLC00631. Remove under cover.
2. For Sedan, drain coolant from radiator by drain cock, and for
Hatchback, drain coolant by removing lower radiator hose.
3. Disconnect radiator upper and lower hoses.
4. Remove radiator shroud.
5. Disconnect reservoir tank hose.
6. Remove radiator mounting bracket.
7. Remove radiator.
8. After repairing or replacing radiator, install any part removed in
reverse order of removal.
When filling radiator with coolant, refer to LC-44, ªChanging
Engine Coolantº.
Cooling FanNJLC0064COMPONENTSNJLC0064S01
JLC347B
CONTROL SYSTEMNJLC0064S02Cooling fans are controlled by ECM. For details, refer to EC-730,
ªTROUBLE DIAGNOSIS FOR OVERHEATº.
ENGINE COOLING SYSTEMYD
Radiator (Cont'd)
LC-43

SLC344B
JLC295B
Changing Engine CoolantNJLC0079WARNING:
To avoid the danger of being scalded, never change the cool-
ant when the engine is hot.
Ð DRAINING ENGINE COOLANT ÐNJLC0079S011. Set air conditioning system as follows to prevent coolant from
remaining in the system.
a. Turn ignition switch ON and set temperature controller to maxi-
mum hot position.
b. Wait 10 seconds before turning ignition switch OFF.
SMA033D
2. Open radiator drain cock at the bottom of radiator or remove
lower radiator hose, and remove radiator filler cap to drain
coolant.
3. Remove reservoir tank, drain coolant, then clean reservoir
tank.
+Be careful not to allow coolant to contact drive belts.
4. Cover the exhaust tube heat shield to prevent from splashing
coolant.
JLC429B
SLC341B
5. Remove drain plug of cylinder block and air relief plug.
6. Check drained coolant for contaminants such as rust, corro-
sion or discoloration. If contaminated flush engine cooling
system, refer to LC-46, ªFLUSHING COOLING SYSTEMº.
7. Blow the coolant around the exhaust tube heat shield.
NOTE:
An asterisk (*1) in the figure means ªNot installed on some
modelsº.
ENGINE COOLING SYSTEMYD
Changing Engine Coolant
LC-44

JLC298B
Ð REFILLING ENGINE COOLANT ÐNJLC0079S021. Install reservoir tank, radiator drain cock or lower radiator hose
and cylinder block drain plug.
+Apply sealant to the thread of cylinder block drain plugs.
:8-11N´m(0.8 - 1.2 kg-m, 70 - 104 in-lb)
2. Fill radiator slowly with coolant until coolant spills from the air
relief plugs, then install air relief plugs.
+Location of air relief plugs
Water inlet and rear side intake manifold water tubes
3. Disconnect heater hose at engine, pour coolant into the hose
so that it flows toward the heater core.
+While filling, if coolant from engine side spills out, be sure to
reconnect the heater hose.
+Fill coolant to the level of the radiator cap at a rate of 2!(1-3/4
Imp qt)/min or lower.
(Close the air relief plugs in order starting with the location from
where the coolant began spilling out.)
CAUTION:
If the filling rate is too fast, this could lead to air being mixed
in the coolant. Be sure to fill the coolant slowly according to
the rate indicated above.
+Replace the copper washer of the air bleeding plug.
Air relief plug:
: 6.7 - 7.9 N´m (0.68 - 0.81 kg-m, 59 - 70 in-lb)
+Use genuine Nissan anti-freeze coolant or equivalent
mixed with water (distilled or demineralized).
SMA182B
SMA412B
Refer to MA-16, ªRECOMMENDED FLUIDS AND LUBRI-
CANTSº.
Engine coolant capacity (With reservoir tank):
8.7!(7-5/8 Imp qt)
Reservoir tank capacity:
0.7!(5/8 Imp qt)
+Pour coolant through coolant filler neck slowly to allow air
in system to escape.
4. Fill radiator and reservoir tank to specified level.
5. Warm up engine to normal operating temperature without
radiator cap installed.
+If coolant overflows radiator filler hole, install radiator cap.
6. Run engine at 3,000 rpm for 10 seconds and return to idle
speed with radiator cap installed.
+Repeat two or three times.
Watch coolant temperature gauge so as not to overheat the
engine.
7. Stop engine and cool it down.
+Cool down using a fan to reduce the time.
+If necessary, refill radiator up to filler neck with coolant.
8. Refill reservoir tank to MAX level line with coolant.
ENGINE COOLING SYSTEMYD
Changing Engine Coolant (Cont'd)
LC-45

9. Repeat steps 4 through 7 two or more times with radiator cap
installed until coolant level no longer drops.
10. Check cooling system for leaks with engine running.
11. Warm up engine, and check for sound of coolant flow while
running engine from idle up to 3,000 rpm with heater tempera-
ture controller set at several positions between COOL and
HOT.
+Sound may be noticeable at heater water cock.
12. If sound is heard, bleed air from cooling system by repeating
steps 4 through 7 until coolant level no longer drops
+Clean excess coolant from engine.
Ð FLUSHING COOLING SYSTEM ÐNJLC0079S031. Open air relief plug.
2. Fill radiator with water until water spills from the air relief hole,
then close air relief plug. Fill radiator and reservoir tank with
water and reinstall radiator cap.
3. Run engine and warm it up to normal operating temperature.
4. Rev engine two or three times under no-load.
5. Stop engine and wait until it cools down.
6. Drain water.
7. Repeat steps 1 through 6 until clear water begins to drain from
radiator.
ENGINE COOLING SYSTEMYD
Changing Engine Coolant (Cont'd)
LC-46

Radiator (Aluminum type)=NJLC0082Refer to LC-21, ªRadiator (Aluminum type)º.
Overheating Cause AnalysisNJLC0070
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor heat transferWater pump malfunction Worn or loose drive belt
Ð Thermostat stuck closed Ð
Damaged finsDust contamination or
paper clogging
Mechanical damage
Clogged radiator cooling
tubeExcess foreign material
(rust, dirt, sand, etc.)
Reduced air flowCooling fan does not oper-
ate
ÐÐ High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud Ð Ð Ð
Improper coolant mixture
ratioÐÐÐ
Poor coolant quality Ð Ð Ð
Insufficient coolantCoolant leaksCooling hoseLoose clamp
Cracked hose
Water pump Poor sealing
Radiator capLoose
Poor sealing
RadiatorO-ring for damage, dete-
rioration or improper fit-
ting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tankExhaust gas leaks into
cooling systemCylinder head deteriora-
tion
Cylinder head gasket
deterioration
ENGINE COOLING SYSTEMYD
Radiator (Aluminum type)
LC-47

Symptom Check items
Except cool-
ing system
parts mal-
functionÐ Overload on engineAbusive drivingHigh engine rpm under
no load
Driving in low gear for
extended time
Driving at extremely high
speed
Powertrain system malfunc-
tion
Ð Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flowBlocked bumper Ð
Ð Blocked radiator grilleInstalled car brassiere
Mud contamination or
paper clogging
Blocked radiator Ð
Blocked condenser
Ð
Installed large fog lamp
Service Data and Specifications (SDS)
THERMOSTATNJLC0071
Valve opening temperature Above 80.5 - 83.5ÉC (177 - 182ÉF)
Valve liftMore than 9.0 mm/95ÉC (0.354 in/203ÉF)
RADIATORNJLC0073Unit: kPa (bar, kg/cm2, psi)
Cap relief pressureStandard 78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11 - 14)
Limit 59 - 98 (0.59 - 0.98, 0.6 - 1.0,9-14)
Leakage test pressure157 (1.57, 1.6, 23)
ENGINE COOLANT CAPACITYNJLC0080Unit:!(Imp qt)
With reservoir tank8.7 (7-5/8)
Reservoir tank0.7 (5/8)
ENGINE COOLING SYSTEMYD
Overheating Cause Analysis (Cont'd)
LC-48

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 yearkm x 1,000
(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)HRRRRRRRRLC-8
Engine oil filter (Use NISSAN genuine
part or equivalent)HRRRRRRRRLC-9
Drive beltsIIIIIIIIEM-16
Cooling systemIIIIIIIILC-12
Engine anti-freeze coolant (Use genu-
ine NISSAN Anti-Freeze Coolant (L2N)
or equivalent)See NOTE (1) I R I LC-18
Air cleaner filterHR R EM-18
Intake and exhaust valve clearance See NOTE (2) EM-44
Fuel and EVAP vapour linesIIIIFE-5/
EC-36
Spark plugsRRRREM-19
Fuel filter See NOTE (3) FE-12
Heated oxygen sensor (Exhaust gas
sensor)HSee NOTE (4)GI-40,
EC-47
NOTE:
(1) First replace at 90,000 km (54,000 miles)/60 months, then every 60,000 km (36,000 miles)/48 months. Perform ªIº (Check-
ing 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 ªMaintenance Under Severe Driving Conditionsº for models without Euro-OBD system. For
models with Euro-OBD system, periodic maintenance is not required.
HMaintenance items with ªHº should be performed more frequently according to ªMaintenance Under Severe Driving Con-
ditionsº.
PERIODIC MAINTENANCE (FOR EUROPE)
Maintenance Schedule for Petrol Engines (Annual Mileage < 30,000 km/year)
MA-4

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.km x 1,000
(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)HRRRRRRLC-31
Engine oil filter (Use Eco filter or
equivalent)HSee NOTE (1)RRRRRRLC-32
Drive beltsIIIIIIEM-85
Cooling systemIIIIIILC-38
Engine anti-freeze coolant (Use
genuine NISSAN Anti-freeze
Coolant (L2N) or equivalent)See NOTE (2) I I LC-44
Air cleaner filterHR R EM-88
Intake & exhaust valve clearance See NOTE (3) EM-133
Fuel lines I I I FE-20
Injection nozzles See NOTE (4) EC-614
Fuel filterHR R R FE-20
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 ªIº (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.
HMaintenance items with ªHº should be performed more frequently according to ªMaintenance Under Severe Driving Con-
ditionsº.
PERIODIC MAINTENANCE (FOR EUROPE)
Maintenance Schedule for Diesel Engines (Annual Mileage < 30,000 km/year)
MA-6