Nissan Altima L32. Manual - part 194

ENGINE COOLANT

CO-13

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CAUTION:

Do not allow the coolant to contact the drive belts.

5. When draining all of the coolant in the system for engine

removal or repair, open the drain plug on the cylinder block.

6. Check the drained coolant for contaminants such as rust, corrosion or discoloration.

If the coolant is contaminated, flush the engine cooling system. 

REFILLING ENGINE COOLANT

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 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-15, "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 Genuine NISSAN Engine Coolant or equivalent,

mixed 50/50 with distilled water or demineralized water.

Refer to 

MA-12, "Engine Oil Recommendation"

.

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.

KBIA0163E

Radiator drain plug

: Refer to 

CO-15, "Removal and Installation"

.

Cylinder block drain plug

: Refer to 

EM-76, "Disassembly and Assembly"

.

Tool number

: KV991J0070 (J-45695)

Engine coolant capacity 
(with reservoir tank)

: Refer to 

CO-25, "Capacity"

.

Compressed air 
supply pressure

: 5.7 - 8.5 kPa (5.6 - 8.4 kg/cm

2

, 

80 - 120 psi)

LLIA0058E

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ENGINE COOLANT

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.

FLUSHING COOLING SYSTEM

1. Fill the radiator from the filler neck above the radiator upper hose and reservoir tank with clean water and

reinstall the radiator filler cap. 

2. Run the engine until it reaches 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-12, "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

RADIATOR

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ON-VEHICLE REPAIR

RADIATOR

Removal and Installation

INFOID:0000000004205445

WARNING:

Never 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 cap. Slowly turn it a quarter turn to

allow built-up pressure to escape. Carefully remove the cap by turning it all the way.    

REMOVAL

1. Drain engine coolant from the radiator. Refer to 

CO-12, "Changing Engine Coolant"

.

2. Remove front grille (Sedan only). Refer to 

EXT-38, "Removal and Installation"

.

3. Remove front bumper fascia (Coupe only). Refer to 

EXT-13, "Removal and Installation"

.

4. Remove engine undercover.
5. Remove front air duct. Refer to 

EM-25, "Removal and Installation"

.

6. Remove A/C condenser. Refer to 

HA-42, "Removal and Installation for Condenser"

.

7. Disconnect radiator upper and lower hose.
8. Disconnect the CVT oil cooler hoses, if equipped. Plug the hoses to prevent CVT oil loss.
9. Remove radiator.

CAUTION:

• Do not damage or scratch the radiator core when removing.

INSTALLATION

Installation is in the reverse order of removal.

1.

Radiator

2.

CVT oil cooler hose (if equipped)

3.

Radiator hose (upper)

4.

Radiator hose (lower)

5.

Cooling fan

6.

Reservoir tank

7.

Reservoir hose

8.

Radiator filler cap

9.

Clamps

A. To CVT (if equipped)

B. To water outlet

C. To water inlet

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RADIATOR

INSPECTION

Radiator

1. Check radiator for mud or clogging. If necessary, clean radiator as follows:

• Be careful not to bend or damage the radiator fins.

• When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radiator

shroud and horns. Then tape the harness and electrical connectors to prevent water from entering.

a. Apply water by hose to the back side of the radiator core, point the hose vertically downward.
b. Apply water again to all radiator core surfaces once per minute.
c.

Stop washing when no more dirt flows off the radiator.

d. Blow air into the back side of radiator core, point the air hose vertically downward.

• Use compressed air lower than 490 kPa (5 kg/cm

2

, 71 psi) and keep distance more than 30 cm (11.8 in). 

e.  Blow air again into all the radiator core surfaces once per minute until no water sprays out.
2. 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 (CVT model only).

b. Check for leakage.

Specified pressure 
value

: 157 kPa (1.6 kg/cm

2

, 23 psi)

SLC933

SLC934