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Engine Cooling: Notes

SYMPTOM TROUBLESHOOTING CHART - ENGINE COOLING

Symptom Troubleshooting Chart - Engine Cooling
Problem Possible Cause Action
  • Loss of Coolant
  • Radiator.
  • Water pump seal.
  • Radiator hoses.
  • Heater hoses.
  • Heater core.
  • Engine gaskets.
  • Coolant recovery reservoir bottle.
  • Engine Overheats
  • Thermostat.
  • Water pump.
  • Internal engine coolant leak.
  • Radiator.
  • Heater core.
  • Inoperative cooling fan.
  • Radiator cap.
  • Engine Does Not Reach Normal Operating Temperature
  • Thermostat.
  • Block Heater Does Not Operate Properly
  • Block heater cable.
  • Block heater.