Nissan Frontier D40. Manual - part 188

 

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Nissan Frontier D40. Manual - part 188

 

 

ENGINE COOLANT

CO-13

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3.

Open the radiator drain plug at the bottom of the radiator, and
remove the reservoir cap. This is the only step required when
partially draining the cooling system (radiator only). 

CAUTION:

Do not allow the coolant to contact the drive belts. 

4.

Follow this step for heater core removal/replacement only. Disconnect the upper heater hose at the
engine side and apply moderate air pressure [103.46 kPa (15 psi, 1.055 kg/cm

2

) maximum air pressure]

into the hose for 30 seconds to blow the excess coolant out of the heater core.

5.

When draining all of the coolant in the system for engine
removal or repair, it is necessary to drain the cylinder block.
Remove the cylinder block drain plug to drain the cylinder block
as shown.

6.

Remove the reservoir tank to drain the engine coolant, then clean the reservoir tank before installing it.

7.

Check the drained coolant for contaminants such as rust, corrosion or discoloration.
If the coolant is contaminated, flush the engine cooling system. Follow the "Flushing Cooling System" pro-
cedure. 

REFILLING ENGINE COOLANT

1.

Close the radiator drain plug. Install the reservoir tank and cylin-
der 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-22, "Recommended Chemical Products and Seal-

ants"

.

2.

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.

3.

Remove the vented reservoir cap and replace it with a non-vented reservoir cap before filling the cooling
system.

LBIA0063E

KBIA0163E

Radiator drain plug

: Refer to 

CO-16

.

Cylinder block drain plug

: Refer to 

EM-78

.

KBIA0163E

CO-14

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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 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 North America: Fluids and Lubricants"

.

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.

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 below 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 and install the radiator cap.

12. Remove the non-vented reservoir cap.

13. Fill the cooling system reservoir tank to the specified level. Run the engine to warm up the cooling system

and top up the system as necessary before installing the vented reservoir cap.

FLUSHING COOLING SYSTEM

1.

Drain the engine coolant from the engine cooling system. Refer to 

CO-12, "Changing Engine Coolant"

.

2.

Fill the radiator and the reservoir tank (to the "MAX" line) with water. Reinstall the radiator cap and leave
the vented reservoir cap off. 

Tool number

: KV991J0070 (J-45695)

Cooling system capacity 
(with reservoir)

: Refer to 

MA-16, "For 

North America: 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

ENGINE COOLANT

CO-15

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3.

Run the engine until it reaches normal operating temperature.

4.

Press the engine accelerator two or three times under no-load.

5.

Stop the engine and wait until it cools down.

6.

Drain the water from the engine cooling system. Refer to 

CO-12, "Changing Engine Coolant"

.

7.

Repeat steps 2 through 6 until clear water begins to drain from the radiator.

CO-16

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RADIATOR

ON-VEHICLE REPAIR

RADIATOR

Exploded View

INFOID:0000000005276085

Removal and Installation

INFOID:0000000005276086

WARNING:

Do not remove radiator cap when engine is hot. Serious burns could occur from high-pressure engine
coolant escaping from radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter of a turn to
release built-up pressure. Carefully remove radiator cap by turning it all the way.

REMOVAL

1.

Remove engine under cover. Refer to 

EXT-13, "Removal and Installation"

.

2.

Drain engine coolant from radiator. Refer to 

CO-12, "Changing Engine Coolant"

.

CAUTION:

• Perform this step when engine is cold.
• Do not spill engine coolant on drive belts.

3.

Remove air duct and resonator assembly and air duct brackets. Refer to 

EM-25, "Exploded View"

.

1.

Reservoir tank

2.

Reservoir tank cap

3.

Reservoir tank hose

4.

Radiator hose (upper)

5.

Upper mount bracket

6.

Mounting rubber (upper)

7.

Radiator cap

8.

Radiator

9.

Mounting rubber (lower)

10. Radiator hose (lower)

11.

Radiator drain plug

12. O-ring

13. A/T fluid cooler hose (if equipped)

14. Upper shroud

15. Lower shroud

16. Heater bypass hose

17. Heater bypass tube

A.

To water inlet

B.

To A/T fluid cooler tube

C.

To heater tube

Front

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