NISSAN NOTE 2016 Service Repair Manual

CO-6
< SYMPTOM DIAGNOSIS >[HR16DE]
OVERHEATING CAUSE ANALYSIS
SYMPTOM DIAGNOSIS
OVERHEATING CAUSE ANALYSIS
Troubleshooting ChartINFOID:0000000012432132
Symptom
Check items
Cooling sys-
tem parts
malfunction Poor heat transfer
Water pump malfunction Worn or loose drive belt
—
Thermostat stuck closed Thermostat
Damaged fins
Dust contamination or pa-
per clogging
Physical damage
Clogged radiator cooling
tube Excess foreign material
(rust, dirt, sand, etc.)
Reduced air flow Cooling fan does not oper-
ate
Fan assembly —
High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud —Radiator shroud —
Improper engine coolant
mixture ratio —
Engine coolant viscosity —
Poor engine coolant quality —Periodic maintenance —
Insufficient engine coolant Engine coolant leaksCooling hose
Loose clamp
Cracked hose
Water pump Poor sealing
Radiator cap Loose
Poor sealing
Radiator O-ring for da
mage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tank Exhaust gas leaking into
cooling system Cylinder head deterioration
Cylinder head gasket deteri-
oration
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OVERHEATING CAUSE ANALYSISCO-7
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Except cool-
ing system
parts mal-
function —
Overload on engine Abusive driving
High engine rpm under no
load
Driving in low gear for ex-
tended time
Driving at extremely high
speed
Power train system mal-
function
—
Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flow Blocked bumper
Installed front bumper fas-
cia cover
—
Blocked radiator grille Mud contamination or paper
clogging
Blocked radiator Blocked air flow
Blocked condenser
Installed large fog lamp
Symptom
Check items
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CO-8
< PERIODIC MAINTENANCE >[HR16DE]
ENGINE COOLANT
PERIODIC MAINTENANCE
ENGINE COOLANT
InspectionINFOID:0000000012432133
CHECKING COOLING SYSTEM HOSES
Check hoses for the following:
• Improper attachment
• Leaks
• Cracks
• Damage
• Loose connections
• Chafing
• Deterioration
CHECKING RESERVOIR LEVEL
• Check that the reservoir tank engine coolant level is within the
MAX (A) to MIN (B) range when the engine is cool.
• Adjust the engine coolant level if necessary.
CAUTION:
Refill the engine cooling system with the specified coolant or
equivalent. Refer to MA-11, "
Fluids and Lubricants".
CHECKING COOLING SYSTEM FOR LEAKS
WARNING:
Do not remove the radiator cap when the engine is hot. Serious burns could occur from high-pressure
engine coolant escaping from the radiator. Wrap a th ick cloth around the cap. Slowly push down and
turn it a quarter turn to allow built-up pressure to escape. Carefully remove the cap by pushing it down
and turning it all the way.
CAUTION:
• Perform this step when the engine is cold.
• Do not spill engine coolant on drive belt.
To check for leaks, apply pressure to the cooling system using suit-
able tools (A) and (B).
Draining Engine CoolantINFOID:0000000012432134
WARNING:
Do not remove the radiator cap when the engine is hot. Serious burns could occur from high-pressure
engine coolant escaping from the radiator. Wrap a th ick cloth around the cap. Slowly push down and
turn it a quarter turn to allow built-up pressure to escape. Carefully remove the cap by pushing it down
and turning it all the way.
1. Remove front under cover. Refer to EXT-39, "
FRONT UNDER COVER : Removal and Installation".
JPBIA0102ZZ
Testing pressure: Refer to
CO-25, "Standard and
Limit".
PBIC5121J
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ENGINE COOLANTCO-9
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2. Connect a suitable hose to the radiator drain plug.
• Use a suitable hose with the dimensions as shown.
3. Open radiator drain plug (A) at the bottom of radiator, and then remove radiator cap.
(B): Suitable hose
: Front
CAUTION:
• Perform this step when engine is cold.
• Do not spill engine coolant on the drive belt.
4. It is necessary to drain the cylinder block when drai ning all of engine coolant in the system. To drain the
cylinder block, open the water drain plugs on cylinder block. Refer to EM-93, "
Exploded View".
5. Remove reservoir tank if necessary, and drain engine coolant and clean reservoir tank before installing. Refer to CO-13, "
Exploded View".
6. Check drained engine coolant for contaminants such as rust, corrosion or discoloration. If contaminated,
flush the engine cooling system. Refer to CO-11, "
Flushing Cooling System".
RefillingINFOID:0000000012432135
1. Install the radiator drain plug. Install the reservoir tank and cylinder block drain plug, if removed for a total
system drain or for engine removal or repair.
• The radiator must be completely empty of engine coolant and water.
• Apply sealant to the threads of the cylinder block drain plug. Use Genuine High Performance
Thread Sealant or equivalent. Refer to MA-11, "
Fluids and Lubricants".
2. If disconnected, reattach the upper radiator hose at the engine side.
3. Set the vehicle heater controls to the full HOT and heat er ON position. Turn the vehicle ignition ON with
the engine OFF as necessary to activate the heater mode. Diameter (A) : 0.8 mm (0.31 in)
Length (B) : 300 mm (11.81 in)
JPBIA4770ZZ
AWBIA1613ZZ
Radiator drain plug : Refer to CO-13, "Exploded View".
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CO-10
< PERIODIC MAINTENANCE >[HR16DE]
ENGINE COOLANT
4. Install the Tool by installing the radiator cap adapter onto the
radiator neck opening. Then attach the gauge body assembly
with the refill tube and the venturi assembly to the radiator cap
adapter.
5. Insert the refill hose into the engine coolant mixture container that is placed at floor level. Make sure the ball valve is in the
closed position.
•Use recommended engine coolant or equivalent.
Refer to MA-11, "
Fluids and Lubricants".
CAUTION:
Do not use any cooling system additives such as radiator
sealer. Additives may clog th e cooling system and cause
damage to the engine, transmission and/or cooling system.
6. Install an air hose to the venturi assembly, the air pressure must be within specification.
CAUTION:
The compressed air supply must be equipped with an air dryer.
7. The vacuum gauge will begin to rise and there will be an audible hissing noise. During this process open the ball valve on the refill hose slightly. Engine coolant wi ll be visible rising in the refill hose. Once the refill
hose is full of engine coolant, close the ball valve. This will purge any air trapped in the refill hose.
8. Continue to draw the vacuum until the gauge reaches 28 inches of vacuum. The gauge may not reach 28 inches in high altitude
locations, use the vacuum specifications based on the altitude
above sea level.
9. When the vacuum gauge has reached the specifi ed amount, disconnect the air hose and wait 20 seconds
to see if the system loses any vacuum. If the vacuum level drops, perform any necessary repairs to the
system and repeat steps 6 - 8 to bring the vacuum to the specified amount. Recheck for any leaks.
10. Place the engine coolant container (with the refill hose inserted) at the same level as the top of the radia- tor. Then open the ball valve on the refill hose so the engine coolant will be drawn up to fill the cooling sys-
tem. The cooling system is full when the vacuum gauge reads zero.
CAUTION:
Do not allow the engine coolant co ntainer to get too low when filling, to avoid air from being drawn
into the cooling system.
11. Remove the Tool from the radiator neck opening.
12. Fill the cooling system reservoir tank to the specified level and install the radiator cap. Run the engine to warm up the cooling system and t op up the system as necessary.
13. Install the front under cover. Refer to EXT-39, "
FRONT UNDER COVER : Removal and Installation".
Tool number : KV991J0070 (J-45695)
Engine coolant capacity
(with reservoir tank)
: Refer to MA-11, "
Fluids and
Lubricants".
Compressed air
supply pressure : 549 - 824 kPa (5.6 - 8.4 kg/cm
2,
80 - 119 psi)LLIA0058E
Altitude above sea level Vacuum gauge reading
0 - 100 m (328 ft) : 28 inches of vacuum
300 m (984 ft) : 27 inches of vacuum
500 m (1,641 ft) : 26 inches of vacuum
1,000 m (3,281 ft) : 24 - 25 inches of vacuum
LLIA0057E
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ENGINE COOLANTCO-11
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Flushing Cooling SystemINFOID:0000000012432136
1. Install radiator drain plug and reservoir tank, if removed.
CAUTION:
Be sure to clean drain plug and install with new O-ring.
2. If water drain plugs on cylinder block were removed, close and tighten them. Refer to EM-93, "
Exploded
View".
3. Remove air duct from between air cleaner case and electric throttle control actuator. Refer to EM-26,
"Removal and Installation".
4. Disconnect heater hose (1) at location ( ) as shown. • Position heater hose as high as possible.
: Front
5. Fill radiator until engine coolant flows out of the disconnected heater hose and then reconnect the heater
hose.
6. Finish filling the engine and reservoir tank with water and reinstall the radiator cap.
7. Install air duct in between air cleaner case and electric throttle control actuator. Refer to EM-26, "
Removal
and Installation".
8. Run the engine and warm it up to normal operating temperature.
9. Rev the engine two or three times under no-load.
10. Stop the engine and wait until it cools down.
11. Drain water from the system. Refer to CO-8, "
Draining Engine Coolant".
12. Repeat steps 1 through 11 until clear water begins to drain from radiator. Radiator drain plug : Refer to
CO-13, "
Exploded View".
JSBIA0616ZZ
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CO-12
< PERIODIC MAINTENANCE >[HR16DE]
RADIATOR
RADIATOR
RADIATOR CAP
RADIATOR CAP : InspectionINFOID:0000000012432137
• Check valve seat (A) of radiator cap.
- Replace the cap if the metal plunger cannot be seen around the
edge of the black rubber gasket.
- Replace the cap if deposits of waxy residue or other foreign mate- rial are on the black rubber gasket or the metal retainer.
NOTE:
Thoroughly wipe out the radiator filler neck to remove any waxy
residue or foreign material.
• Pull negative-pressure valve to open it, and check that it closes completely when released.
- Check that there is no dirt or damage on the valve seat of radiator cap negative-pressure valve.
- Check that there are no abnormalities in the opening and closing conditions of negative-pressure valve.
• Check radiator cap relief pressure using suitable tools (A) and (B).
- When connecting the radiator cap to suitable tool (B), apply water or engine coolant to the cap seal surface.
- Replace the radiator cap if ther e is an abnormality in the negative-
pressure valve, or if the open-valve pressure is outside of the stan-
dard values.
RADIATOR
RADIATOR : InspectionINFOID:0000000012432138
Check radiator for mud or clogging. If necessary, clean radiator as follows.
CAUTION:
• Be careful not to bend or damage radiator fins.
• When radiator is cleaned without removal, remove all surrounding parts in order to access the radia-
tor core. Then tape harness and harness conn ectors to prevent water from entering.
1. Spray water to the back side of the radiator co re using a side to side motion from the top down.
2. Stop spraying when debris no longer flows from radiator.
3. Blow air into the back side of radiator core using side to side motion from the top down. • Use compressed air lower than 490 kPa (5 kg/cm
2, 71 psi) and keep distance more than 30 cm (11.81
in).
4. Continue to blow air until no water sprays out.
5. Check for engine coolant leaks. Repair if necessary.
(B) : Metal plunger
JPBIA0108ZZ
SMA967B
Standard and Limit : Refer to CO-25, "Standard and
Limit".
PBIC5122J
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RADIATORCO-13
< REMOVAL AND INSTALLATION > [HR16DE]
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REMOVAL AND INSTALLATION
RADIATOR
Exploded ViewINFOID:0000000012432139
Removal and InstallationINFOID:0000000012432140
REMOVAL
WARNING:
Do not remove the radiator cap when the engine is
hot. Serious burns could occur from high-pressure
engine coolant escaping from the radi ator. Wrap a thick cloth around the radiator cap. Slowly turn it a
quarter of a turn to release built-up pressure. Carefu lly remove radiator cap by turning it all the way.
NOTE:
When removing components such as hoses, tubes/lines, etc. , cap or plug openings to prevent fluid from spill-
ing.
1. Reservoir tank hose 2. Reservoir tank cap 3. Reservoir tank
4. Mounting rubber (lower) 5. O-ring6. Drain plug
7. Radiator 8. Cooling fan assembly 9. Clamp
10. Radiator hose (lower) 11. Clamp12. Oil cooler hose
13. Radiator hose to water outlet (upper) 14. Radiator cap adapter 15. Radiator cap
16. Radiator cap adapter bracket 17. Clamp 18. Radiator hose (upper) to radiator
19. Mounting rubber (upper) 20. CVT cooler hose 21. Clamp
21. Clamp 22. Clamp23. CVT cooler hose
24. Clamp A. To water inletB. To water outlet
C. To oil cooler
AWBIA2770ZZ
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CO-14
< REMOVAL AND INSTALLATION >[HR16DE]
RADIATOR
1. Drain engine coolant. Refer to
CO-8, "Draining Engine Coolant".
CAUTION:
• Perform this step when the engine is cold.
• Do not spill engine coolant on drive belt.
2. Remove air duct (inlet). Refer to EM-26, "
Removal and Installation".
3. Disconnect battery negative terminal. Refer to PG-70, "
Removal and Installation (Battery)".
4. Remove radiator hose (lower).
5. Remove radiator hose (upper) from water outlet.
6. Remove the front under cover. Refer to EXT-39, "
FRONT UNDER COVER : Removal and Installation".
7. Remove the front grille. Refer to EXT-32, "
Removal and Installation".
8. Disconnect reservoir tank hose, and remove reservoir tank.
9. Disconnect harness connector from fan motor, and move harness aside.
10. Remove radiator core support (upper). Refer to DLK-144, "
RADIATOR CORE SUPPORT UPPER :
Removal and Installation".
11. Remove the condenser bolts and place aside. Refer to HA-31, "
CONDENSER : Removal and Installa-
tion".
12. Remove radiator hose (upper) from radiator.
13. Remove cooling fan assembly. Refer to CO-16, "
Removal and Installation".
CAUTION:
Be careful not to damage or scratch the radiator.
14. Disconnect CVT cooler lines.
15. Remove the radiator from bottom of the vehicle. CAUTION:
When removing, do not damage or scrat ch radiator core or A/C condenser.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Do not reuse O-ring.
• Insert the radiator hose (1) all the way to the stopper (2) or by 33 mm (1.30 in) (hose without a stopper) as
shown.
• The correct orientation of the hose clamps are as shown.
*: Refer to the illustrations for the specific position for each hose clamp tab. 1. Radiator hose
2. Stopper
A. Radiator side B. Engine side
JPBIA4294GB
Radiator hoseHose endPaint mark
Position of hose clamp*
Radiator hose (upper) Radiator side
UpperA
Engine side UpperB
Radiator hose (lower) Radiator side
LowerC
Engine side UpperD
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RADIATORCO-15
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• The angle (b) created by the hose clamp pawl and the specified
line (A) must be within ±30° as shown.
• To install hose clamps (1), check that the dimension (A) from the end of the hose clamp on the radiator hose to the hose clamp is
within the reference value.
CAUTION:
• When installing do not damage or scratch radiator core or A/C condenser.
• Replace water hose clamp if it is removed.
• Use only Genuine NISSAN bolts for the cooling fan assembly and strictly follow the tightenin g torque. Over tightening may
damage the radiator.
INSPECTION AFTER INSTALLATION
• Check for engine coolant leaks. Refer to CO-8, "Inspection".
• Start and warm up the engine. Visually inspect for engine coolant leaks. Repair as necessary.
A. View A B. View BC. View C
D View D E. View Ef. 45°
Vehicle upper
JSBIA1299ZZ
JPBIA4295ZZ
Dimension (A) : 3 – 7 mm (0.12 – 0.28 in)
JPBIA3527ZZ
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