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汽车后轮熄火后有电流声
更新时间: 2021-06-09 19:30:51  

1、车辆底部的哒哒声可能来自于三元催化器。三元催化器的工作温度接近1000摄氏度,熄火后内部的金属部件便会发生热胀冷缩,并伴有一些哒哒哒的声响。另外,停车熄火后,若车内依然有哒哒的声音。

2、解决方法:如果车子没什么异常情况就属于正常现象,之所以会有哒哒的声音,是因为持续高转后,发动机的温度会相应增高导致发动机很热。当停车后缸体温度不均匀降低,导致金属接缝间冷却收缩,哒哒的声响是金属间的摩擦声音,年代久远的车尤其明显。

关键词: 汽车 后轮 熄火 流声

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