* Radiator itself: A crack or hole in the radiator is a common cause. Pressure from the running engine forces coolant out.
* Radiator hoses: These hoses connect the radiator to the engine. Cracks, holes, or loose clamps can lead to leaks. Look carefully at the upper and lower radiator hoses, as well as the heater hoses.
* Water pump: The water pump circulates coolant. A failing seal or a crack in the pump housing can leak coolant. This is often accompanied by a squealing noise.
* Engine block: A crack in the engine block itself is a serious and expensive problem. This is less likely than the other possibilities but should be considered if other sources are ruled out.
* Thermostat housing: A leak in the thermostat housing or a faulty gasket can cause coolant leakage.
* Hose connections: Look closely at all the connections where hoses attach to other parts – sometimes a simple clamp is loose or a hose is deteriorated at the connection point.
Why it's urgent: Driving with a major coolant leak is extremely dangerous. Overheating can cause catastrophic engine damage. You should not drive the car until the leak is fixed.
Troubleshooting Steps (Do not attempt if you are not comfortable working on cars):
1. Safety First: Let the engine cool completely before attempting any inspection. Coolant is hot and can cause serious burns.
2. Visual Inspection: Carefully examine all the components listed above. Look for any signs of wetness, corrosion, or cracks. A flashlight can be helpful.
3. Pressure Test: A radiator pressure test is the best way to pinpoint the leak. This involves pressurizing the cooling system and observing where the pressure escapes. A mechanic will have the necessary equipment.
Recommendation: Given the severity of the leak ("constant pour"), taking your Saturn to a mechanic is strongly recommended. Attempting a repair yourself could lead to further damage or injury. The sooner you get it looked at, the better the chances of preventing expensive engine damage.
