论文部分内容阅读
发动机怠速不稳是汽车使用中最常见的故障之一。掌握正确的诊断和维修思路,可以减少维修时间,提高工作效率,因此,对发动机怠速不稳故障要加以重视。文章以一辆别克凯越怠速不稳故障为例子,阐述了汽车发动机怠速不稳的原因和排除方法,并查出导致该车怠速不稳的原因是EGR阀关闭不严。
Idle engine speed is one of the most common failures in the car. Grasp the correct diagnosis and maintenance ideas, can reduce maintenance time, improve work efficiency, therefore, the engine idling instability to be taken seriously. The article takes a Buick Excelle idle instability fault as an example, elaborates the reasons and precautions of the vehicle engine idling instability, and finds out that the reason of instability of the idle speed of the car is that the EGR valve is not closed tightly.