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Engine Cooling - 2.0L Ecoboost: Other Ford Focus III

Cooling System (Mechanical) 5 illustrations ~192 words

Possible Sources

  1. Coolant hoses or tubes
  2. Hose clamps
  3. Thermostat housing
  4. Thermostat housing O-ring seals
  5. Coolant pump gasket
  6. Radiator
  7. Pressure relief cap
  8. Coolant pump
  9. Turbocharger (may leak internally or externally)
  10. Oil cooler (may leak internally or externally) (if equipped)
  11. Heater core
  12. Engine gaskets (may leak internally or externally)
  13. Degas bottle
  14. Cylinder block core plugs
  15. Cylinder head core plugs
  16. Block heater (if equipped)
  1. Low coolant level
  2. External engine coolant leak
  3. Airlock in system
  4. Pressure relief cap installation
  5. Restricted airflow through A/C condenser/radiator
  6. Internal engine coolant leak
  7. Coolant condition/concentration
  8. Non-OEM engine enhancement components
  9. Electric cooling fan
  10. CHT sensor
  11. Radiator
  12. Thermostat
  13. Temperature gauge
  14. Coolant pump
  15. Coolant flow restriction
DTCDescriptionFault Trigger Conditions
P1285Cylinder Head Overtemperature ConditionSets in the PCM when an engine overheat condition was sensed by the CHT sensor.
P1299Cylinder Head Overtemperature Protection ActiveSets in the PCM when an engine overheat condition was detected by the CHT sensor. A failure mode effects management strategy called fail-safe cooling was activated to cool the engine

DIAGNOSTIC TROUBLE CODE (DTC) FAULT TRIGGER CONDITIONS

  1. Low coolant level
  2. Thermostat
  3. Temperature gauge
  4. CHT Sensor
DTCDescriptionFault Trigger Conditions
P0125Insufficient Coolant Temp for Closed Loop Fuel ControlSets in the PCM when the CHT sensor has not achieved the required temperature level to enter closed loop operating conditions within a specified amount of time after starting the engine.
P0128Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)Sets in the PCM when the thermostat monitor has not achieved the required engine operating temperature within a specified amount of time after starting the engine.

DIAGNOSTIC TROUBLE CODE (DTC) FAULT TRIGGER CONDITIONS

Thermostat

Install a new thermostat only after at least one of the following tests and checks have been carried out

  1. Pinpoint Test B or C
  2. Thermostat Visual Inspection
Hose Clamp Remover/Installer

SPECIAL TOOL(S) / GENERAL EQUIPMENT

Degas Bottle

NameSpecification
Motorcraft® - Orange Antifreeze/Coolant Prediluted VC-3DIL-BWSS-M97B44-D2

MATERIALS SPECIFICATIONS

Scheme 82

Scheme 82: Removal
Scheme 82: Removal

Scheme 83

Scheme 83
Scheme 83

Scheme 84

Scheme 84
Scheme 84

Scheme 85

Scheme 85
Scheme 85

Scheme 86

Scheme 86
Scheme 86
  1. Refer to: «HEALTH AND SAFETY PRECAUTIONS»(ref-515929-S17418754162012120400000) .

Radiator

Transmission Jack
Knife

SPECIAL TOOL(S) / GENERAL EQUIPMENT

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