What to Do When the Coolant Temperature Warning Light Comes On?
1 Answers
When the coolant temperature warning light comes on, you should not continue driving. It is advisable to stop the vehicle and wait for the temperature to drop before driving to a service station for inspection and repair. The coolant temperature warning light indicates that the engine coolant temperature is too high or the fluid level is too low. Overheating can cause excessive temperatures in components such as pistons, cylinder walls, cylinders, and the crankshaft, thinning the engine oil and reducing its lubricating properties. This may lead to engine block deformation, water pump and thermostat failures, and direct damage to the engine. The principle behind the coolant temperature light is a bimetallic sensor switch screwed into the engine block water jacket. Within the normal operating temperature range, the switch contacts remain open, and the indicator light stays off. However, when the coolant temperature exceeds the normal range, the switch arm contacts close, causing the red warning light to illuminate.