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Nissan Titan A60. Manual - part 216

CO-10

< PERIODIC MAINTENANCE >

ENGINE COOLANT

PERIODIC MAINTENANCE

ENGINE COOLANT

Inspection

INFOID:0000000006179341

WARNING:

• Never remove the radiator/reservoir cap when the engine is hot. Serious burns could occur from

high pressure fluid escaping from the radiator or reservoir.

• Wrap a thick cloth around the cap. Slowly push down and turn it a quarter turn to allow built-up pres-

sure to escape. Carefully remove the cap by pushing down and turning it all the way.

CHECKING COOLING SYSTEM HOSES

Check hoses for the following:

• Improper attachment

• Leaks

• Cracks

• Damage

• Loose connections

• Chafing

• Deterioration

LEVEL CHECK

• Check if the engine coolant reservoir tank level is within MIN to

MAX level when engine is cool.

• Adjust engine coolant level as necessary.

CHECKING COOLING SYSTEM FOR LEAKS

WARNING:

Never remove the radiator or reservoir cap when the engine is hot. Serious burns could occur from

high-pressure engine coolant escaping from the radiator or reservoir.

• To check for leakage, apply pressure to the cooling system at the

reservoir filler neck using suitable tool and Tool.

CAUTION:

Higher pressure than specified may cause radiator damage.

NOTE:

In case that engine coolant decreases, replenish cooling system

with engine coolant.

• If any concerns are found, repair or replace damaged parts.

CHECKING RESERVOIR CAP

SMA412B

Tool number

: (J-24460-92)

Leakage test pressure

: 137 kPa (1.4 kg/cm, 20 psi)

WBIA0612E

ENGINE COOLANT

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• Check reservoir cap relief pressure using suitable tool and Tool.

NOTE:

Apply engine coolant to the cap seal.

• Replace the reservoir cap if there is any damage in the negative-

pressure valve, or if the open-valve pressure is outside of the limit.

CHECKING RADIATOR CAP

Inspect the radiator cap.

NOTE:

Thoroughly wipe out the radiator filler neck to remove any waxy resi-

due or foreign material.

• 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.

• Pull negative-pressure valve to open it and make sure that it closes

completely when released.

• Make sure that there is no dirt or damage on the valve seat of radi-

ator cap negative-pressure valve.

• Make sure that there are no unusualness in the opening and clos-

ing conditions of negative-pressure valve.

• Check for engine coolant leaks. Refer to

CO-10, "Inspection"

Changing Engine Coolant

INFOID:0000000006179342

WARNING:

• To avoid being scalded, never change the coolant when the engine is hot.

• Wrap a thick cloth around the cap to carefully remove the cap. First, turn the cap a quarter of a turn

to release any built-up pressure, then push down and turn the cap all the way to remove it.

DRAINING ENGINE COOLANT

1. Turn ignition switch ON and set temperature control lever all the way to HOT position or the highest tem-

perature position. Wait 10 seconds and turn ignition switch OFF.

2. Remove the engine under cover or skid plate. Refer to

EXT-15, "Removal and Installation"

3. Open the radiator drain plug at the bottom of the radiator, and

remove the radiator filler cap. This is the only step required

when partially draining the cooling system (radiator only).

CAUTION:

Do not to allow the coolant to contact the drive belts.

Tool number

: (J-24460-92)

Standard : 110 kPa (1.12 kg/cm

, 16 psi)

WBIA0611E

PBIC2816E

SMA967B

WBIA0391E

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ENGINE COOLANT

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

removal or repair, it is necessary to drain the cylinder block.

Remove the RH cylinder block drain plug to drain the right bank

and the oil cooler hose to drain the left bank as shown.

5. Remove the reservoir tank to drain the engine coolant, then clean the reservoir tank before installing it.
6. Check the drained coolant for contaminants such as rust, corrosion or discoloration.

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

CO-11, "Changing Engine Cool-

ant"

REFILLING ENGINE COOLANT

1. Close the radiator drain plug. Install the reservoir tank, cylinder block drain plug, and the oil cooler hose, 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 plug. Use Genuine High Performance Thread

Sealant or equivalent. Refer to

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.

PBIC0146E

WBIA0392E

Radiator drain plug

: Refer to

CO-16

RH cylinder block drain plug

: Refer to

CO-11

ENGINE COOLANT

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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 specified coolant or equivalent.

Refer to

MA-21, "FOR NORTH AMERICA : Fluids and Lubri-

cants"

(United States and Canada,

MA-22, "FOR MEXICO :

Fluids and Lubricants"

(Mexico).

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, Refer to the following table for expected vacuum read-

ing.

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 water from the engine cooling system. Refer to

CO-11, "Changing Engine Coolant"

Tool number

: KV991J0070 (J-45695)

Cooling system capacity
(with reservoir)

: Refer to

CO-25, "Stan-

dard and Limit"

Compressed air
supply pressure

: 549 - 824 kPa (5.6 - 8.4 kg/cm