2005 NISSAN NAVARA coolant reservoir

MA-20
ENGINE MAINTENANCE
REFILLING ENGINE COOLANT
1. Install reservoir tank, and radiator drain plug.
CAUTION:
Be sure to clean radiator drain plug and install with new O-ring.
lIf water drain plug on cylinder block is removed, close and tighten it. Refer toEM-110, "CYLIN-
DER BLOCK".
2. Make sure that each hose clamp has been firmly tightened.
3. Fill radiator and reservoir tank to the specified level.
lPour engine coolant through engine coolant filler neck
slowly of less than 2 (1-3/4 lmp qt) a minute to allow air
in system to escape.
lUse Genuine NISSAN Anti-freeze Coolant (L250) or equiv-
alent in its quality. Refer toMA-14, "
RECOMMENDED
FLUIDS AND LUBRICANTS"
lWhen engine coolant overflows air relief hole, install air relief
plug.
4. Warm up engine to normal operating temperature without radiator cap and reservoir tank cap installed.
lIf engine coolant overflows radiator filler hole and reservoir tank filler hole, install radiator cap
and reservoir tank cap.
5. Run engine at 3,000 rpm for 10 seconds and return to idle speed with radiator cap installed.
lRepeat two or three times.
CAUTION:
Watch engine coolant temperature gauge so as not to overheat the engine.
6. Stop engine and cool down to less than approximately 50°C(122°F).
lCool down using a fan to reduce the time.
lIf necessary, refill radiator up to filler neck with engine coolant.
7. Refill reservoir tank to MAX level line with engine coolant.
8. Repeat steps 3 through 6 two or more times with radiator cap installed until engine coolant level no longer
drops.
9. Check cooling system for leaks with engine running.
10. Warm up engine, and check for sound of engine coolant flow while running engine from idle up to 3,000
rpm with heater temperature controller set at several position between COOL and WARM.
lSound may be noticeable at heater unit.Radiator drain plug:
: 1.2 N·m (0.12 kg-m, 11 in-lb)
Engine coolant capacity
(with reservoir tank at “MAX” level)
LHD models
: Approx. 9.9 (8 - 3/4 lmp qt)
RHD models
: Approx. 10.2 (9 lmp qt)
SMA182B
Reservoir tank capacity (at “MAX” level)
: 0.8 (3/4 lmp qt)
SMA412B

ENGINE MAINTENANCE
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11. Repeat step 10 three times.
12. If sound is heard, bleed air from cooling system by repeating steps 3 through 6 until engine coolant level
no longer drops.
FLUSHING COOLING SYSTEM
1. 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 and reservoir tank cap.
2. Run engine and warm it up to normal operating temperature.
3. Rev engine two or three times under no-load.
4. Stop engine and wait until it cools down.
5. Drain water from the system. Refer toMA-19, "
DRAINING ENGINE COOLANT".
6. Repeat steps 1 through 5 until clear water begins to drain from radiator.
Checking Cooling SystemELS001JR
WARNING:
Never remove the radiator cap and reservoir tank cap when the engine is hot. Serious burns could
occur from high pressure engine coolant escaping from the radiator and the reservoir tank. Wrap a
thick cloth around the cap. Slowly turn it a quarter turn to allow built-up pressure to escape. Carefully
remove the cap by turning it all the way.
CHECKING COOLING SYSTEM HOSES
Check hoses for improper attachment, leaks, cracks, damage, loose connections, chafing and deterioration.
CHECKING RADIATOR
Check radiator for mud or clogging. If necessary, clean radiator as follows.
lBe careful not to bend or damage the radiator fins.
lWhen radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radiator
shroud and horns. Then tape the harness and connectors to prevent water from entering.
1. Apply water by hose to the back side of the radiator core vertically downwards.
2. Apply water again to all radiator core surface once per minute.
3. Stop washing if any stains no longer flow out from the radiator.
4. Blow air into the back side of radiator core vertically downwards.
lUse compressed air lower than 490 kpa (4.9 bar, 5 kg/cm2, 71psi) and keep distance more than 30
cm(11.8 in).
5. Blow air again into all the radiator core surface once per minute until no water sprays out.
CHECKING RESERVOIR TANK CAP
lInspect valve seat of reservoir tank cap.
–Check if valve seat is swollen to the extent that the edge of the
plunger cannot be seen when watching it vertically from the top.
–Check if valve seat has no soil and damage.
PBIC2816E

MA-22
ENGINE MAINTENANCE
lPull negative-pressure valve to open it, and make sure that it is
completely closed when released.
–Makesurethatthereisnodirtordamageonthevalveseatof
radiator cap negative-pressure valve.
–Make sure that there are no unusualness in the opening and
closing conditions of negative-pressure valve.
lCheck reservoir tank cap relief pressure.
–When connecting reservoir tank cap to the radiator cap tester
adapter (SST) and the radiator cap tester (Commercial service
tool), apply engine coolant to the cap seal surface.
lReplace reservoir tank cap if there is an unusualness in negative pressure value, or if the relief pressure
falls below the limit.
CAUTION:
When installing a radiator cap and reservoir tank cap, thoroughly wipe out the radiator and reservoir
tank filler neck to remove any waxy residue or foreign material.
CHECKING RADIATOR SYSTEM FOR LEAKS
lTo check for leaks of cooling system, apply pressure to the res-
ervoir tank (1) with the radiator cap tester (commercial service
tool) (A) and the radiator cap tester adapter (B) [SST:
EG17650301].
WARNING:
Do not remove reservoir tank cap and/or radiator cap when
engine is hot. Serious burns could occur from high pres-
sure engine coolant escaping from reservoir tank and/or
radiator.
CAUTION:
Higher test pressure than specified may cause cooling system damage.
NOTE:
In a case that engine coolant decreases, replenish radiator and reservoir tank with engine coolant.
lIf anything is found, repair or replace damaged parts.
SMA967B
Standard : 98.2 - 117.8 kPa (0.98 - 1.18 bar, 1.0 -
1.2 kg/cm
2,14-17psi)
Limit : 59 kPa (0.59 bar, 0.6 kg/cm
2,9psi)
SLC755AC
Testing pressure:
157 kPa (1.57 bar, 1.6 kg/cm
2,23psi)
PBIC3501E

SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitELS001J8
BELT DEFLECTION
*: When engine is cold.
RESERVOIR TANK
Unit:kPa(bar,kg/cm2, psi)
ENGINE COOLANT CAPACITY (APPROXIMATE)
Unit: (lmp qt)
ENGINE OIL CAPACITY (APPROXIMATE)
Unit: (lmp qt) Applied beltBelt deflection with 98 N (10 kg, 22 lb) force applied* mm (in)
New Adjusted Limit for re-adjusting
A/C compressor, alternator and water
pump belt2.9 - 3.4 (0.114 - 0.134) 3.9 - 4.4 (0.154 - 0.173) 8.5 (0.335)
Power steering oil pump belt 4.6 - 5.4 (0.181 - 0.213) 7.1 - 7.7 (0.280 - 0.303) 11.3 (0.445)
Cap relief pressureStandard 98.2 - 117.8 (0.98 - 1.18, 1.0 - 1.2, 14 - 17)
Limit 59 (0.59, 0.6, 9)
Leakage test pressure 157 (1.57, 1.6, 23)
Engine coolant capacity (With reser-
voir tank at “MAX” level)LHD models 9.9 (8-3/4)
RHD models 10.2 (9)
Reservoir tank coolant capacity (At “MAX” level) 0.8 (3/4)
Drain and refillWith oil filter change 7.6 (6-5/8)
Without oil filter change 7.1 (6-1/4)
Dry engine (Overhaul)7.9 (7)

TROUBLE DIAGNOSIS
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MTC
Insufficient HeatingEJS005GN
SYMPTOM: Insufficient heating
INSPECTION FLOW
*1 .MTC-53, "Operational Check".*2MTC-63, "Air Mix Door Motor Cir-
cuit".*3MTC-51, "
A/C System Self-diagno-
sis Function".
*4MTC-51, "
A/C System Self-diagno-
sis Function".*5MTC-71, "
Blower Motor Circuit".*6EC-103, "DTC P0117, P0118 ECT
SENSOR".
*7CO-7, "
Changing Engine Coolant".*8CO-13, "Checking Reservoir Tank
Cap".
MJIB0354E

HEATER & COOLING UNIT ASSEMBLY
MTC-103
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MTC
HEATER & COOLING UNIT ASSEMBLYPFP:27110
ComponentsEJS005GX
Heater and Cooling Unit Assembly —LHD Models—
MJIB0278E
1. High-pressure A/C pipe 2. Low-pressure A/C pipe 3. Expansion valve
4. Heater core and evaporator pipes
grommet5. A/C drain hose grommet 6. A/C drain hose
7. Heater core pipes 8. Coolant reservoir hose 9. Heater and cooling unit assembly