ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Cooling System Backflushing > < Cooling System Draining, Filling and Bleeding
Engine Cooling - Cooling System Flushing Focus 1999 (08/1998-12/2004)
General Procedures

  1. To remove rust, sludge and other foreign material from the cooling system, use Premium Cooling System Flush, that is safe for use with aluminum radiators, for additional information - Refer to Specifications in this section. Remove the thermostat prior to pressure flushing. This cleaning restores cooling system efficiency and helps prevent overheating. A pulsating or reversed direction of flushing water will loosen sediment more quickly than a steady flow in the normal coolant flow direction. In severe cases where cleaning solvents will not properly clean the cooling system for efficient operation, it will be necessary to use the pressure flushing method using Cooling System Flusher. Dispose of old coolant and flushing water contaminated with antifreeze and cleaning chemicals in accordance with local, state or federal laws.
  1. Remove the radiator.
  1. CAUTION:
    CAUTION:Radiator internal pressure must not exceed 138 KPa (20 psi). Damage may result.
    With the radiator in an upside down position, flush the radiator with a high-pressure water hose in the lower hose location.
  1. Remove the thermostat.
  1. Position the high-pressure water hose into the engine through the engine coolant return and flush the engine.

Cooling System Backflushing > < Cooling System Draining, Filling and Bleeding