Nissan Versa

 Sedan Service Manual

Engine » Engine cooling system (CO) » Radiator
Radiator cap

RADIATOR CAP : Inspection

• Check valve seat (A) of radiator cap.

(B) : Metal plunger

• 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.

• Pull negativepressure 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 radiator cap negativepressure valve.
• Make sure that the valve operates properly while opening and closing.

• Check radiator cap relief pressure using a suitable tool (A) and Tool (B).

Tool number (B) : EG17650301 (J33984A)

• When connecting the radiator cap to the Tool (B), apply water or coolant to the cap seal surface.
• Replace radiator cap if there is an abnormality in the negativepressure valve, or if the radiator cap does not perform within specifications.

CAUTION:

When installing radiator cap, thoroughly wipe out the radiator filler neck to remove any waxy residue or foreign material.

Radiator cap

Radiator