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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 164 (Maintenance (CUMMINS 5.0L)) >> Periodic Maintenance >> Engine Maintenance >> Engine Coolant >> Changing Engine Coolant >> Flushing Cooling System

Flushing Cooling System

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.
  1. Fill the radiator from the filler neck above the radiator upper hose and reservoir tank with clean water and reinstall radiator filler cap.
  2. Run the engine until it reaches normal operating temperature.
  3. Rev the engine two or three times under no-load.
  4. Stop the engine and wait until it cools down.
  5. Drain the water from the system. Refer to Changing Engine Coolant .
  6. Repeat steps 1-5 until clear water begins to drain from the radiator.
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