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雪佛兰赛欧突然动力不足，原因究竟是什么？

2020-08-12 16:56:43 类型：行业最新动态 作者：黄启玉
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导读：之前有个同事，在农村老家来电说，刚加了一箱汽油，车跑着跑着突然觉得动力不如原来了，原地起步的时候还总是熄火，问我是怎么回事，根据经验判断第一想到的是，汽油质量不好，造成发动燃烧不好......

之前有个同事，在农村老家来电说，刚加了一箱汽油，车跑着跑着突然觉得动力不如原来了，原地起步的时候还总是熄火，问我是怎么回事，根据经验判断第一想到的是，汽油质量不好，造成发动燃烧不好，后来他自个找来工具把汽油都抽了出来，加了95的中石化汽油，跑了跑还是起步的时候熄火，怀疑是汽油燃烧不充分，节气门上的积碳太多，经过一番处理，还是不行，让他自个找了个修理厂，用仪器读取了下故障码，，报四缸缺火，换掉点火线圈，故障排除。

后来说是，行驶中里程表指针不转了，行驶中松开油门感觉速度降得太快，像是一种阻力在阻挡车的前进，第一想到的是里程表位置传感器坏了，让他把传感器拆了下来，先让他看看是不是变速箱齿轮油太脏了，有铁销进入传感器，造成的，根据拍过来的照片看，并不是太脏，让他转了转里程表传感器的轴，也没有卡顿的迹象，怀疑传感器内部电子件出现了故障，让他从网上买了个同型号的里程表传感器，拿到新件后，换上跑了没两公里说又坏了，让他去了镇上的修理厂，也是怀疑里程表传感器的问题，告诉修理工，刚换的新的，这不还是不行，修理厂说买的质量不行，而修理厂又没有现货，正好我认识个卖配件的朋友，后来推荐给了他，拿到件装上后，跑了没几公里又烧了，怀疑其他线路出现的问题造成的，用仪器测的结果是车速表电压低，清理了四个轮子的车速传感器，从网上买了配件还是没解决。

当时在家想换什么配件都的现买，就告诉他回济南后在维修把，不影响正常开，过完年，后来把车开到了我这，正好我也有一辆同款的车，怀疑仪表内部电子件烧了，两个车相互倒换了下，连传感器也倒换了，试车还是不行，去修理厂经过一番检测说发动机ECU可能坏了，又不敢确定是它，也是想找个旧件但换下，在那放了一星期，也没找到一样的ECU，同事说着急用车就开走了，找了家雪佛兰4S店，说以前有过这种案例，后来在传感器上加了个电阻，解决了，维修下来二三百块钱，只不过最近维修经理出国了，一星期后回来，于是也没处理掉问题。

后来回到家仔细琢磨，当时四缸缺火不工作之前正常开，也没出现过这种情况，在换了四缸点火线圈，出现了这种问题，突然想到百分之八九十是点火线圈不行，后来从车上倒换了个，问题解决，就是因为钻进了牛角尖，才忽略了造成问题的根源。

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