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Home >> Mercury >> 2002 >> Villager Base >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling >> Diagnosis And Testing >> Engine Cooling >> Symptom Chart
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Symptom Chart

SYMPTOM CHART

Condition Possible Sources Action
  • Loss of coolant
  • Radiator.
  • Water pump seal.
  • Radiator hoses.
  • Heater hoses.
  • Heater core.
  • Engine gaskets.
  • Coolant expansion tank.
  • The engine overheats
  • Water thermostat.
  • Water pump.
  • Internal engine coolant leak.
  • Radiator.
  • Heater core.
  • Inoperative cooling fan.
  • Radiator cap.
  • The engine does not reach normal operating temperature
  • Water thermostat.
  • The block heater does not operate properly
  • Block heater power cable.
  • Block heater.
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