论文部分内容阅读
汽车发动机起动困难是一个比较常见的故障,引起汽车起动困难的原因有多种,修理时最重要的是找准问题的关键,对症下药。一辆2003年款别克君威轿车,搭载LB82.5L发动机,因出现起动困难而使车主非常烦恼,本文针对此故障谈谈自己的检修方法。根据起动困难现象分析判断故障可能出现的部位和部件,然后施行检查,结果查出是24X曲轴位置传感器有大量的油污,且曲轴带轮的橡胶减振层已经老化变形,曲轴带轮上的齿环也有部分损坏的现象,结果导致24X曲轴位置传感器传送给PCM错误的曲轴位置传感器,更换新的曲轴带轮,并进行曲轴位置偏差学习后,发动机可以顺利起动,故障排除。
Car engine starting difficulty is a more common fault, causing the car to start a variety of reasons, the most important repair is the key to identify the problem, the right medicine. A 2003 Buick Regal sedan, equipped with LB82.5L engine, due to start-up difficulties and the owners are very annoyed, this article to talk about this failure to repair their own methods. According to the analysis of start-up difficult phenomenon to determine the possible parts and components, and then check the results found to be 24X crankshaft position sensor has a lot of oil, and the crankshaft pulley rubber damping layer has been aging deformation, the crankshaft pulley teeth The ring is also partially damaged. As a result, the 24X crankshaft position sensor sends a wrong crankshaft position sensor to the PCM. After replacing the new crankshaft pulley and crankshaft position deviation learning, the engine can start smoothly and the trouble is solved.