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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Cooling System (5.6L)) >> Removal And Installation >> Multi-Way Control Valve >> Removal and Installation >> Removal

Removal and Installation: Removal

WARNING: This page is about a different variant/trim than selected.
  1. Drain engine coolant. Refer to Changing Engine Coolant .
    CAUTION:
    • Perform this step when engine is cold.
    • Do not spill engine coolant on drive belts.
  2. Remove cooling fan and cooling fan coupling. Refer to Removal and Installation (Crankshaft driven type) .
  3. Remove drive belt. Refer to Removal and Installation .
  4. Disconnect radiator hose (upper) from multi-way control valve.
  5. Disconnect heater hose (inlet), water suction hose, oil cooler water hose (inlet) and electronic throttle control actuator water hose (inlet) from multi-way control valve.
  6. Disconnect the multi-way control valve harness connector.
  7. Remove bolts and then remove the multi-way control valve and gasket.
    CAUTION: Do not reuse gasket.
  8. If removing the multi-way control valve housing or water connector, refer to the following procedure:
    1. Remove intake manifold. Refer to Removal and Installation .
    2. Remove fuel feed tube (bank side) and fuel feed tube (pump side). Refer to Exploded View .
    3. Disconnect the oil cooler water hose (outlet) and reservoir tank water hose from the multi-way control valve housing.
    4. Disconnect the water bypass hose (bank 2), heater hose (outlet) and harness clips from the heater pipe (outlet) and remove the heater pipe (outlet).
      CAUTION: Do not reuse O-ring.
    5. Remove bolts from multi-way control valve housing and water connector and remove as an assembly.
      CAUTION: Do not reuse gaskets.
    6. Separate the multi-way control valve housing from the water connector (if necessary).
      CAUTION: Do not reuse O-ring.