How to Solve the False Overheating Issue in Wuling Zhiguang?
2 Answers
False overheating in a car refers to a situation where the coolant temperature is not high, but the temperature gauge shows a high reading. This is usually caused by a faulty thermostat and can be resolved by replacing it. Below are measures to address false overheating in cars: 1. If the engine temperature is too high, stop driving immediately, then open the engine hood to allow the engine to cool down. Most cars use water-cooled engines, which rely on coolant circulation to dissipate heat. If the engine overheats, it could be due to clogged cooling system pipes, infrequent coolant changes, or a damaged thermostat. 2. Generally, if the engine's radiator is clogged, it can lead to engine overheating. Low coolant levels can also cause overheating. The primary way to prevent engine overheating is to operate the vehicle correctly, monitor the coolant level and cleanliness, and have the vehicle inspected regularly at a repair shop. If overheating occurs, immediately find a shaded area to park and cool down the engine, let the engine idle, and open the hood to enhance heat dissipation. 3. If the temperature remains consistent, check if the cooling fan is functioning properly and if the radiator exterior is clogged. If cleaning the radiator does not improve the situation, replace the cylinder head gasket.
I've been driving my Wuling Zhiguang minivan for several years and have encountered several false overheating warnings. The dashboard shows a sudden temperature spike, but the engine doesn't feel hot at all. I suspect it's mostly the sensor acting up—the coolant temperature sensor is located near the radiator, making it prone to false alarms due to dirt or moisture. I've tried fixing it myself: first, check if the sensor connector is loose or corroded, and cleaning it with a dry cloth often solves the problem; if that doesn't work, check the fuse box and replace the fuse for the cooling system. Short circuits in the wiring are also common, especially on rainy days when dew causes wires to short and trigger false warnings. For safety, I regularly clean the engine bay when washing the car to prevent dust buildup from causing issues. If DIY doesn't work, head to the 4S shop for a professional check-up—don't let false warnings delay important matters.
