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qq车开了一会发动机舱嗡嗡响怎么回事
更新时间: 2021-03-28 12:41:46  

1、发动机爆震。是一种类似于金属敲击的声音,也可说成敲缸,故障原因可分三种: a、燃油不合格,使用了劣质燃油或者标号过低的燃油。b、发动机正时控制错误,比如点火提前角过大等,重新调整正时。

2、气门异响。着车后发动机“哒哒哒”响,这是气门的声音,尤其是凉车着车之后,是因为此时机油油压还没上去。

关键词: qq 发动 机舱 嗡嗡 怎么 回事

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