相信很多朋友去修理厂修车都有个疑问,怎么样才能少花钱。没必要换的东西不需要换。其实现在的修理厂有非常多的小心思,只是你们不知道而已,今天我就来说一下怎么回事儿。
打个比方,假如你的爱车出现。急加油的时候车辆耸动?这个一般都可能是缺缸引起的。能导致发动机缺缸的就那么几点:火花塞,点火线圈,高压线,喷油嘴,缸压不够。
你把车开到修理厂以后。修理工用电脑检测假如是一缸喷油嘴导致的缺缸,他又不能百分之百确认的情况下,他可能就会这么跟你沟通:可能是一缸喷油嘴出现问题。需要先更换一缸喷油嘴。完了接下来在检查下一项,这时候往往司机师傅不懂的情况下都会同意,但是你要知道假如要是不好的情况下对你的车一点改变没有几百块钱就没了,百分之百检测是不是喷油嘴的办法非常简单,就是把感觉坏了的喷油嘴换到别的缸上,因为不可能喷油嘴一下全坏,看看故障码变化没有,要是变化就百分之百是喷油嘴,要是没变化就不是。因为有些车拆卸喷油嘴非常不好拆,修理工为了省事,修理厂为了挣钱往往都会让你直接更换。
火花塞,高压线,点火线圈,都能这么检测,就是比较麻烦,拆了装,装了拆的。但是假如你知道这些诀窍你就可以要求这么做。
再说一个简单的例子,有些车出现故障现象是:放一会儿就不好打火,或者凉车不好打火,一般都是汽油泵,或者喷油嘴泄压,那怎么检测到底是哪个呢?一般你开去修理厂都会把汽油压力表接上看看是否泄压。这时候问题出现了,就算是你接上压力表以后发现泄压也确认不了到底是它俩哪个坏了,只能证明是它俩的毛病。修理工就会说最大的可能性是汽油泵你先需要更换,要不然没法进行下一项。在你不懂得情况下可能就答应了。其实分析是不是汽油泵也非常简单,一般的修理厂都会有清洗喷油嘴的仪器,它就完全可以代替你车上的汽油泵,来确认是不是汽油泵的毛病,接上以后看汽油表的压力,不变化就证明好了就是汽油泵的问题,变化就是喷油嘴。像我刚才说的一样,修理工为了省事就会这样做。
好了今天先和大家分析这么多。感觉我说的不对,或者有什么问题欢迎大家前来问我(发表这个会不会成为修理厂的公敌)。想了解更多爱车知识,或者怎样少花钱成为老司机的关注我。每天坚持更新,你们的支持就是对我最大的鼓励,谢谢。
原创文章,作者:cesifu,如若转载,请注明出处:http://www.cesifu.com/article/9344.html
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