[Car Engine Overheating] 4 Causes, Symptoms, and Side Effects | Emergency Treatment | Self-Immolation Insurance Coverage

Engine is the core component of the car. If the operating temperature is too high, it will not only affect the performance, but also cause serious damage. In fact, engine overheating is usually not caused by engine failure, but by the cooling system (cooling system and air conditioning system is two separate operating systemsThe cooling system is responsible for effectively dissipating the heat generated by the engine and keeping the engine operating within a safe temperature range. The following are common causes of engine overheating:

1. Insufficient coolant or leaking

Coolant (also known as radiator water) is crucial for dissipating heat from the engine. Leakage due to cracks in the radiator, damaged pipes, or poor seals can cause the coolant level to become too low. Once the coolant is insufficient, cooling effectiveness is significantly impaired, causing the engine temperature to rise rapidly.

2.Radiator fan failure

The radiator fan is installed behind the radiator. When the engine temperature is too high, the radiator fan will start, increasing air flow to cool the radiator and thus keep the engine temperature below zero. If the fan blades are stuck, the belt is slipping, or the belt is broken, the fan will not function properly, and the cooling capacity will be impaired, causing the engine temperature to remain high.

3. Thermostat failure

The thermostat regulates the flow of coolant to maintain the engine at normal operating temperature. A malfunction of the thermostat will prevent the coolant from circulating properly, causing the engine temperature to continue to rise.

4. Other factors

This includes radiator blockage, poor sealing of the radiator cap, abnormal cooling system pressure, etc., which can also affect the engine's heat dissipation function and cause overheating.

The water temperature warning light comes on

When the engine temperature is too high, the Coolant Temperature Warning Light on the dashboard will usually light up.The light symbol is a red thermometer on the ripples, which is a danger warning to remind the driver to deal with it immediately.

White hot steam

When the engine overheats, the water in the cooling system may boil and produce steam.Open the hood and you will see billowing white smoke, which is a clear sign of coolant overheating.。

Sudden drop in engine performance

Engine overheating can lead to stalling, loss of acceleration, difficulty starting, etc., sometimes the engine will make a sharp noise or vibration.

Abnormal heating in the car

When a problem occurs in the cooling system, The heating outlet may blow out hot air or alternate between hot and cold air, because the coolant circulation is abnormal.

Abnormal exhaust

Overheating may cause abnormal smoke in the exhaust, such as blue smoke (piston ring problem), white smoke (coolant infiltration), etc., are also signals of engine abnormality.

Radiator fan failure causes insufficient heat dissipation

If there is a problem with the radiator fan, the heat dissipation will be reduced, the water temperature will rise rapidly, and the water temperature pointer on the dashboard will point to the red area (or H, depending on the model).

If you notice your engine overheating, do not continue to drive it. Doing so can cause the engine to burn out or even explode, resulting in significant repair costs. We offer the following steps to minimize further damage.

Stop the car safely to avoid immediate stalling

Slowly stop the vehicle in a safe place and turn on the double yellow lights to alert the vehicles behind you.Be careful not to turn off the engine immediately, as this may cause the engine to overheat locally and cause more serious damage.，Wait until the engine temperature drops slightly before turning off the engine.

Wait for the engine to cool down and carefully open the hood

Overheated coolant may spray out at high pressure. Wear gloves or cover the hood with a cloth before opening it to avoid burns. It is recommended to wait for 5 to 10 minutes for the heat to subside before opening the hood.

Check the coolant level

Make sure the water tank cap is loose, then carefully open the water tank cap and check the coolant level of the main and auxiliary water tanks.If the water level is significantly low, temporarily add an appropriate amount of distilled water (avoid adding cold water to prevent thermal expansion and contraction from damaging the engine). If there are signs of coolant leakage, send the car for repair as soon as possible.

Turn off the air conditioning and turn on the heater and fan

The air conditioner will increase the burden on the engine, so it is recommended to turn it off temporarily.Turn on the heater and adjust the fan speed to the highest setting, using the car's heating system to dissipate some of the engine heat.

Seek professional repair help as soon as possible

After completing the above simple emergency measures, notify a tow truck or visit a garage for inspection as soon as possible. Do not restart the vehicle. Additionally, perform regular maintenance on the cooling system during daily driving, checking the radiator fluid level, fan operation, thermostat, and water pipe condition.