Workshop Manuals Factory service & repair Nissan and Datsun
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Nissan and Datsun Xterra 4WD V6-4.0L (VQ40DE) (2009)03 · Maintenance
03 · Maintenance

Coolant: Specifications (page 3 of 8)

Make
Nissan and Datsun
Model
Xterra 4WD
Engine
V6-4.0L (VQ40DE)
Year
2009
Section
Fluids › Coolant
MaintenanceSpecifications · page 3 of 8
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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
1. Inspect the reservoir cap.
-

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 material are on the black rubber gasket or the metal retainer.

NOTE:
Thoroughly wipe out the reservoir filler neck to remove any waxy residue or foreign material.

2. Pull the negative-pressure valve to open it and check that it closes completely when released.
-

Check that there is no dirt or damage on the valve seat of the reservoir cap negative-pressure valve.

-

Check that there are no abnormalities in the opening and closing conditions of the negative-pressure valve.

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

NOTE:
-

Apply engine coolant to the cap seal surface.

-

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.
-

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 material are on the black rubber gasket or the metal retainer.

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

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Parts & tools for this job For 2009 Nissan Xterra 4.0L

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