Symptom Chart

SYMPTOM CHART

Condition	Possible Sources	Action
Loss of coolant	Radiator Coolant pump seal Radiator hoses Heater hoses Heater core Engine gaskets Degas bottle	GO to PINPOINT TEST A .
The engine overheats	Thermostat Coolant pump Internal engine coolant leak Radiator Cooling fan Pressure relief cap or radiator cap	GO to PINPOINT TEST B .
The engine does not reach normal operating temperature	Thermostat	GO to PINPOINT TEST C .