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Home › Jaguar › 2005 › XK8 2D Convertible › Repair and Diagnosis › Engine Mechanical › Cooling System (Mechanical) › Engine Cooling › Engine Cooling › Cooling System Backflushing - General Procedures › Engine Backflushing

Engine Backflushing

  1. Remove the thermostat before backflushing the engine. Refer to Thermostat - Removal and Installation (Vehicles Without: Supercharger)  or Thermostat - Removal and Installation (Vehicles With: Supercharger) .
  2. Position the high-pressure water hose into the engine through the engine return and backflush the engine.
  3. Connect a suitable hose pipe to the upper coolant hose connection of the engine.
  4. Turn the water supply valve to the hose ON and allow water pressure to flow through the engine.
  5. Allow water pressure to flow through the engine for approximately five minutes.
  6. Turn the water supply valve to the hose OFF and disconnect the hose pipe from the upper coolant hose connection of the engine.
  7. Connect the upper coolant hose to the engine.
  8. Fill the cooling system as described using a 50% mixture of Jaguar Premium Cooling System Fluid or equivalent, meeting Jaguar specification WSS M97B44-D and 50% distilled water.
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