What are the main faults of Dayun heavy-duty truck tractors?
2 Answers
The main faults of Dayun heavy-duty truck tractors include water ingress in the headlights, inaccurate fuel gauge readings, abnormal noises from the truck body, and difficulty in engine ignition. Reasons for faults in heavy-duty trucks: Due to poor sealing of heavy-duty truck headlights, water ingress is common during washing or rainy conditions, and fogging occurs when there is a significant temperature difference between the inside and outside. An unstable fuel gauge pointer may indicate an issue with the fuel level sensor. If the fuel gauge pointer does not reach the top after confirming the tank is full, the problem likely lies with the fuel gauge display. Abnormal noises in heavy-duty trucks may be caused by inadequate lubrication in certain parts; applying some grease might help. Difficulty in ignition could be due to clogged fuel injectors, which may return to normal operation after cleaning. Additionally, carbon buildup near the intake valves can also be a contributing factor. If carbon deposits are not thoroughly cleaned, although fuel can still enter, some adsorption may occur, leading to high fuel consumption and abnormal air intake. Precautions regarding faults in heavy-duty trucks: When headlights have water ingress, it is best to avoid high-temperature baking. Since headlight materials are usually plastic, excessive baking temperatures can soften and deform the headlight surface, affecting both functionality and appearance.
I've been driving Dayun tractors for nearly ten years, and there are quite a few common issues. The engine tends to overheat, especially during long-distance hauls in high temperatures when the cooling system can't handle it, requiring frequent checks on the radiator and water pump. Brake system failures are also common, such as worn-out brake pads or leaking oil lines, which can lead to dangerous failures at critical moments. Battery and wiring aging is another pain point—short circuits during rainy days cause warning lights and malfunctions, disrupting trips. Uneven tire wear or frequent blowouts often result from unbalanced loads or poor road conditions. Loose drive shafts and bearings can cause vehicle wobbling and loud noises. Oil leaks in the chassis suspension are also not uncommon, worsening damage on rough roads. In short, regular maintenance is key—don’t skimp on small expenses and risk bigger problems. These issues not only cost money but also affect safety, so it’s advisable to spend five minutes checking key components before hitting the road.
