Sentra L4-1.8L (QG18DE) SULEV (2003)
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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 vacuum specifications based on the altitude above sea level.
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
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.
12. 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 radiator cap.
