一般来说,如果车能按时保养,车的机油没问题,车开到30公里以后才需要大修。一辆私家车能开到这个公里数,一年算下来是开两万公里,15年才能开够30万公里。所以到了15年车大修,也是很划算的,如果实在不想大修,也可以考虑换新车。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/e1fe9925bc315c60b990a08c9db1cb1349547748?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
主要原因
1、活塞环磨损密封不严,活塞压缩时漏气,最终形成它没办法建立足够的压力。
2、连杆受力弯曲,长度不足也无法建立正常的压力,但是不论是那种原因,最好都要把发动机分解开,最终的维修方法也是大修发动机。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/37d3d539b6003af3576d34fd272ac65c1138b65c?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_450%2Ch_600%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
铁路乘务专业
技能+就业
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/09fa513d269759ee79808856a0fb43166c22df5f?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_450%2Ch_600%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
汽车维修专业
技能+就业
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/3b87e950352ac65c61d68eeee9f2b21192138a58?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_450%2Ch_600%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
焊工培训+考证
短期技能精修
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/eac4b74543a98226df0cc3ba9882b9014b90eb5a?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_450%2Ch_600%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
二手车评估师
培训+考证
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