What does it mean when the car shows the engine temperature is too high?
1 Answers
When a vehicle displays that the engine temperature is too high, the reasons can include fan failure, insufficient coolant, minimal coolant circulation, poor engine performance, insufficient lubricant, or radiator cooling issues. Here are the specific details: Fan failure: Fan malfunction affects its normal operation. Specific causes include delayed or premature activation of the fan electromagnetic clutch or fan motor control switch, the fan not turning at all, or failure of the fan silicone oil clutch. Insufficient coolant: Low coolant levels or excessive internal consumption are mainly caused by cylinder head damage. Minimal coolant circulation: Specific causes include water pump failure, thermostat damage, or excessive scale buildup in the radiator or engine water passages without timely cleaning. Poor engine performance: Main reasons include delayed ignition timing, overly lean fuel mixture, excessive carbon buildup in the combustion chamber, or engine knocking. Insufficient lubricant: This prevents moving parts from receiving adequate lubrication, increasing friction resistance, accelerating wear, and generating more heat. It also raises the lubricant temperature, reducing its viscosity, which further worsens friction, heat generation, and cooling, leading to engine overheating. Radiator cooling issues: Main causes include debris blocking the radiator fins, deformed radiator fins, or internal radiator blockage.
