What are the reasons for the inaccurate temperature gauge in Geely cars?
3 Answers
The power line of the temperature gauge is disconnected, the heating coil of the temperature gauge is burnt out, or the heating coil or contact of the temperature gauge sensor is faulty. Inspection methods are as follows: First, confirm whether the water temperature is normal. If the water temperature is normal, it is caused by unstable voltage, and it is necessary to check whether the water temperature sensor and related circuits are loose or have poor contact. During vehicle operation, changes in engine water temperature are directly related to factors such as speed, load, and road conditions, while abnormal water temperature is mainly related to the working condition of the thermostat and electric fan. Impact of a damaged temperature gauge: It has no effect on the car. Use your own observation and judgment skills. First, check the fuse and relay to see if there are any issues. If there are no problems, it means the gauge is damaged and needs to be replaced. However, the absence of a temperature gauge will not affect the use of the car.
I've been driving Geely cars for over a decade and have encountered inaccurate temperature gauge issues several times. The most common problem is a faulty coolant temperature sensor, which is installed near the radiator and prone to water accumulation, rust, or aging, causing erratic readings. Loose wiring connectors can also lead to signal loss, especially when the needle jumps wildly on bumpy roads while the engine remains fine when checked after stopping. The instrument cluster itself sometimes malfunctions, such as showing delayed or lower readings during cold winter starts. While Geely's electronic systems are generally durable, electronic components tend to degrade faster as the vehicle ages. Insufficient coolant level can also affect sensor accuracy since low fluid prevents proper temperature sensing. When noticing inaccuracies, always check coolant levels and connector tightness first. If that doesn't help, promptly visit an authorized service center to scan the ECU with diagnostic equipment to avoid overlooking engine overheating risks, which could damage core engine components and lead to expensive repairs.
As a Geely owner, I've researched the root causes of inaccurate temperature gauge readings. The core issue lies in faulty coolant temperature sensors—when they age, accumulate dirt, or get damaged, the data transmitted to the dashboard becomes erratic. Modern Geely vehicles use ECUs to process information, and software bugs or voltage fluctuations can cause significant reading errors. Wiring connection problems, such as insulation wear leading to short circuits, may cause the needle to fluctuate wildly. Dashboard module failures are common in older vehicles and require replacement. Another factor is cooling system leaks causing fluid level drops, which distort sensor temperature readings. For DIY testing, connecting an OBD tool to monitor real-time data is more accurate; simple fixes include cleaning sensors or checking fuses. However, complex cases require professional attention, as prolonged engine overheating can reduce efficiency or even cause total failure.
