Engine Cooling System: Other Nissan Armada I

PRECAUTIONS FOR SUPPLEMENTAL RESTRAINT SYSTEM (SRS) "AIR BAG" AND "SEAT BELT PRE-TENSIONER"

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in SUPPLEMENTAL RESTRAINT SYSTEM and SEAT BELTS .

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1. After removing the bolts and nuts, separate the mating surface and remove the old liquid gasket sealing using Tool. Tool number: KV10111100 (J-37228) CAUTION: Do not damage the mating surfaces.
2. Tap the seal cutter to insert it.
3. In areas where the Tool is difficult to use, lightly tap to slide it.

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1. Remove the old liquid gasket adhering to the gasket application surface and the mating surface using suitable tool. Remove the liquid gasket completely from the groove of the liquid gasket application surface, bolts, and bolt holes.
2. Thoroughly clean the mating surfaces and remove adhering moisture, grease and foreign material.
3. Attach the liquid gasket tube to the Tool. Tool number: WS39930000 (-) Use Genuine RTV Silicone Sealant or equivalent. Refer to «RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS»(ref-233237-S23907478682006052500000) .
4. Apply the liquid gasket without breaks to the specified location with the specified dimensions. If there is a groove for the liquid gasket application, apply the liquid gasket to the groove. As for the bolt holes, normally apply the liquid gasket inside the holes. If specified in the procedure, it should also be applied outside the holes. Within five minutes of liquid gasket application, install the mating component. If the liquid gasket protrudes, wipe it off immediately. Do not retighten after the installation. Wait 30 minutes or more after installation before refilling the engine with engine oil and engine coolant.

SPECIAL SERVICE TOOLS

The actual shapes of Kent-Moore tools may differ from those of special service tools (Scheme 17).

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1. Check if the engine coolant reservoir tank level is within MIN to MAX level when engine is cool.
2. Adjust engine coolant level as necessary.

CHECKING COOLING SYSTEM FOR LEAKS

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1. To check for leakage, apply pressure to the cooling system at the reservoir filler neck using suitable tool and Tool. Tool number: EG17650301 (J-33984-A) Leakage test pressure: 137 kPa (1.4 kg/cm, 20 psi) CAUTION: Higher pressure than specified may cause radiator damage. NOTE: In case that engine coolant decreases, replenish cooling system with engine coolant.
2. If any concerns are found, repair or replace damaged parts.

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1. Check reservoir cap relief pressure using suitable tool and Tool. Tool number: EG17650301 (J-33984-A) Standard: 95 - 125 kPa (0.97 - 1.28 kg/cm 2 , 14 - 18 psi) NOTE: Apply engine coolant to the cap seal.
2. 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 residue or foreign material.

1. Replace the cap if the metal plunger cannot be seen around the edge of the black rubber gasket.
2. Replace the cap if deposits of waxy residue or other foreign material are on the black rubber gasket or the metal retainer.

CHANGING ENGINE COOLANT

Refer to CHANGING ENGINE COOLANT .

CHECKING RADIATOR

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

1. Apply water by hose to the back side of the radiator core vertically downward.
2. Apply water again to all radiator core surfaces.
3. Stop washing when dirt and debris no longer flow out from the radiator.
4. Blow air into the back side of radiator core vertically downward. Use compressed air lower than 490 kPa (5 kg/cm2, 71 psi) and keep distance more than 30 cm (11.8 in).
5. Blow air again into all the radiator core surfaces until no water sprays out.

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Fan Coupling

Inspect fan coupling for oil leakage and bimetal conditions.

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1. Visually check that there is no significant looseness in the fan bracket shaft, and that it turns smoothly by hand.
2. If there are any unusual concerns, replace the cooling fan pulley.

THERMOSTAT

THERMOSTAT SPECIFICATIONS

RADIATOR

RADIATOR SPECIFICATIONS