Nissan Maxima Service and Repair Manual: Water outlet and water piping

Removal and Installation

1. Heater hose
2. Clamp
3. Water hose
4. Clamp
5. Water outlet
6. Gasket
7. Gasket
8. Water connector
9. O-ring
10. Water bypass pipe
11. Clamp
12. Water hose
13. Heater pipe
14. Water hose
15. Heater hose
16. Engine coolant temperature sensor
17. Clamp
18. Radiator hose (upper)
1.  To heater core
2.  To electric throttle control actuator
3.  To oil cooler
4.  To radiator

WARNING: Do not remove the radiator cap when the engine is hot. Serious burns could occur from high pressure engine coolant escaping from the radiator. Wrap a thick cloth around the radiator cap. Slowly turn it a quarter of a turn to release built-up pressure. Carefully remove radiator cap by turning it all the way.

NOTE: When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spilling.

REMOVAL

CAUTION: Perform when the engine is cold.

1. Partially drain coolant from radiator. Refer to CO-11, "Changing Engine Coolant".
2. Remove engine room cover. Refer to EM-23, "Removal and Installation"
3. Remove front air duct and air cleaner case assembly. Refer to EM-24, "Removal and Installation".
4. Disconnect electric throttle control actuator coolant hoses.
5. Remove radiator hose (upper) and both heater hoses.
6. Remove connector(s) from heater pipe.
7. Remove engine coolant temperature sensor on water outlet.
8. Remove water outlet, heater pipe, water connector, and water bypass pipe nuts and bolts

INSTALLATION

1. Installation is in the reverse order of removal.

• Securely insert each hose, and install a clamp at a position where it does not interfere with the pipe bulge.
  CAUTION: Do not reuse gasket.
• When inserting heater pipe and water bypass pipe into water connector, apply neutral detergent to new O-rings.
  CAUTION: Do not reuse O-rings.
• After installation refill engine coolant and check for leaks. Refer to CO-11, "Changing Engine Coolant" and CO-10, "System Inspection".