Nissan Maxima. Instruction — part 300
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< PERIODIC MAINTENANCE >
[VQ35DE]
ENGINE COOLANT
5. When performing a complete cooling system drain remove the cylinder block front drain plug and the cyl-
inder block RH drain plug.
6. Check the drained coolant for contaminants such as rust, corrosion or discoloration.
• If contaminated, flush the engine cooling system.
REFILLING ENGINE COOLANT
1. Install the radiator drain plug. If the cooling system was drained completely, install the reservoir tank and
the cylinder block drain plugs.
• The radiator must be completely empty of coolant and water.
• Apply sealant to the threads of the cylinder block drain plugs. Use Genuine High Performance Thread
Sealant or equivalent. Refer to
GI-21, "Recommended Chemical Products and Sealants"
.
2. If disconnected, reattach the upper radiator hose at the engine side.
3. Set the vehicle heater controls to the full HOT and heater ON position. Turn the vehicle ignition ON with
the engine OFF as necessary to activate the heater mode.
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 coolant mixture container that is
placed at floor level. Make sure the ball valve is in the closed
position.
• Use recommended coolant or equivalent.
Refer to
MA-16, "FOR USA AND CANADA : Anti-Freeze Cool-
(United States and Canada) or
"FOR MEXICO : Engine Coolant Mixture Ratio"
CAUTION:
Do not use any cooling system additives such as radiator
sealer. Additives may clog the 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. Coolant will be visible rising in the refill hose. Once the refill hose is
full of coolant, close the ball valve. This will purge any air trapped in the refill hose.
Radiator drain plug
: Refer to
.
Cylinder block front drain plug
: 9.8 N·m (1.0 kg-m, 87 in-lb)
Cylinder block RH drain plug
: 19.6 N·m (2.0 kg-m, 14 ft-lb)
Tool number
: KV991J0070 (J-45695)
Engine coolant capacity
(with reservoir tank)
: Refer to
USA AND CANADA : Flu-
ids and Lubricants"
ed States and Canada) or
MA-16, "FOR MEXICO :
Fluids and Lubricants"
(Mexico).
LLIA0058E
Compressed air supply pressure : 549 - 824 kPa (5.6 - 8.4 kg/cm
2
, 80 - 119 psi)
ENGINE COOLANT
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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 specified 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 coolant container (with the refill hose inserted) at the same level as the top of the radiator. Then
open the ball valve on the refill hose so the coolant will be drawn up to fill the cooling system. The cooling
system is full when the vacuum gauge reads zero.
CAUTION:
Do not allow the coolant container 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 top up the system as necessary.
13. Install the engine under cover. Refer to
FLUSHING COOLING SYSTEM
1. Fill the radiator from the filler neck above the radiator upper hose and reservoir tank with clean water and
reinstall radiator cap.
2. Run the engine and warm it up to normal operating temperature.
3. Rev the engine two or three times under no-load.
4. Stop the engine and wait until it cools down.
5. Drain the water from the system. Refer to
CO-11, "Changing Engine Coolant"
.
6. Repeat steps 1 through 5 until clear water begins to drain from the radiator.
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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< REMOVAL AND INSTALLATION >
[VQ35DE]
RADIATOR
REMOVAL AND INSTALLATION
RADIATOR
Exploded View
INFOID:0000000009469266
Removal and Installation
INFOID:0000000009469267
WARNING:
Do not remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
coolant escaping from the radiator. Wrap a thick cloth around the radiator cap. Slowly turn it a quarter
turn to allow built-up pressure to escape. Carefully remove the 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.
REMOVAL
1. Drain coolant from radiator. Refer to
CO-11, "Changing Engine Coolant"
2. Remove hoodledge covers (LH/RH).
3. Remove front bumper fascia. Refer to
EXT-16, "Removal and Installation"
.
4. Remove battery tray. Refer to
PG-68, "Removal and Installation (Battery Tray)"
5. Disconnect reservoir hose.
6. Disconnect radiator hose (upper) and radiator hose (lower).
7. Remove A/C condenser. Refer to
HA-45, "CONDENSER : Removal and Installation"
.
8. Disconnect the CVT oil cooler hoses.
1.
Radiator
2.
CVT oil cooler hose
3.
Radiator drain plug
4.
Radiator hose (lower) clamp
5.
Radiator hose (lower)
6.
Radiator hose (lower) bracket
7.
Reservoir tank
8.
Reservoir hose
9.
Radiator cap
10. Radiator cap adaptor
11. Radiator hose (upper)
12. Radiator hose (upper) clamp
A.
To CVT
B.
To water outlet
C.
To water inlet
AWBIA1411ZZ
RADIATOR
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9. Remove radiator.
CAUTION:
Do not damage or scratch the radiator core when removing.
INSTALLATION
Installation is in the reverse order of removal.
• After installation refill engine coolant and check for leaks. Refer to and
.
CAUTION:
Do not spill coolant in engine compartment. Use a shop cloth to absorb coolant.
INSPECTION
Radiator
1. Check radiator for mud or clogging. If necessary, clean radiator as follows.
CAUTION:
• Be careful not to bend or damage the radiator fins.
• When radiator is cleaned on-vehicle, remove surrounding parts in order to access the radiator
core. Tape the harness and electrical connectors to prevent water from entering.
2. Spray water to the back side of the radiator core using a side to side motion from the top down.
3. Stop spraying when debris no longer flows from radiator core.
4. Blow air into the back side of radiator core using a 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 (11.8 in).
5. Continue to blow air until no water sprays out.
6. Inspect radiator for leaks as follows:
a. Apply pressure using Tool.
WARNING:
To prevent the risk of the hose coming undone while under
pressure, securely fasten it down with a hose clamp.
Attach a hose to the oil cooler as well.
b. Check for leaks.
Tool number
: EG17650301 (J-33984-A)
Leakage test pressure
: Refer to
SLC933
SLC934
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