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Home >> Ford >> 2012 >> Focus S, Standard Trans, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 9 (Engine Cooling System - 2.0L ECOBOOST) >> Diagnosis and Testing >> Engine Cooling >> Symptom Chart

Symptom Chart

WARNING: This page is about a different car, the 2013 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.

Condition Possible Sources Actions
Loss of coolant Refer to Diagnostic Routine GO to  PINPOINT TEST A  
The engine overheats. Refer to Diagnostic Routine GO to  PINPOINT TEST B  
The engine does not reach normal operating temperature. Refer to Diagnostic Routine GO to  PINPOINT TEST C  
The block heater does not operate correctly.
  • Block heater power cable
  • Block heater
  • CHECK continuity in all 3 power cable circuits. If any circuit measures more than 5 ohms, INSTALL a new power cable.
  • CHECK the resistance of the block heater. If the resistance does not measure between 12.5 and 17 ohms, INSTALL a new block heater.
The electric cooling fan is inoperative in one or more speeds or does not operate correctly.
  • Wiring
  • Relays
  • Fuses
  • Cooling fan motor
  • Cooling fan resistor
REFER to the INTRODUCTION - GASOLINE MODELS ENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID) .
The electric cooling fan stays on all the time.
  • Wiring
  • Relays
REFER to the INTRODUCTION - GASOLINE MODELS ENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID) .
Noisy electric cooling fan operation.
  • Foreign material contamination
  • Fan motor
  • REMOVE the foreign material from the cooling fan and shroud. TEST the system for normal operation. If still noisy, INSTALL a new cooling fan assembly.
  • Fan blade detached from fan motor
  • INSTALL a new cooling fan assembly.