别克凯越的后轮部分会有异响 请高手来解答

2025-02-14 20:27:14
推荐回答(2个)
回答1:

若声响在低速运转时显得轻微、单纯,在高速运转时显得轰鸣且平稳均匀,在加速或减速显得圆滑过渡,则为正常声响。
异响原因 伴同现象
主轴承径向间隙过大或轴瓦合金烧熔脱落 机油压力下降,机体振抖
连杆轴承松旷过甚 机油压力下降
进、排气门卡滞不能闭 个别缸不工作,机体振抖。若排气门卡滞将造成排气管有喘气声
活塞与缸壁间隙过大,活塞环对口或抱死 加机油口出现脉动冒烟,排气管冒浓蓝烟,机油消耗多,燃油消耗多但是多功率下降
排气门弹簧折断 个别缸不工作,发动机抖动,不易加速
点火时间过迟 燃油消耗多,功率降低

若声响中伴随着沉闷的“镗”“镗”声,或清脆的“当、当”声,或短促的“嗒、嗒”声,或细微的“涮、涮”声,或强烈的“嘎、嘎”声,即表明发动机存在不正常的异响,至于其是否严重,则可依据以下情况判断:
①声响若仅在怠速运转时存在,转速提高后即自行消失,在整个使用过程中声响又无明显的变化,则属于危害不大的异响,允许暂时存在,待适当时机再行修理。
②声响若在突然加速或突然减速时出现,而且当发动机在中、高速运转期并不消失,同时又引起机体振抖,则属于不允许再继续存在异响,应予以立即查明原因,进行排除。
③声响倘若是在运转中突然出现的,且又较猛烈,则不应使用发动机继续运转或进行试听诊断,而应立即停机拆检。一般应先拆油底壳,再拆缸盖。

回答2:

都是这样的,很多车都有这种响声。跑起来的时候就想轮胎里扎了个钉子一样。

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