故障现象
一辆2012年产上汽大众POLO 1.6轿车，搭载CPJ发动机，行驶里程11万km。用户反映该车后部有异响。
检查分析
维修人员试车发现，该车的异响是从右后部位发出的。贴近右后轮仔细听，像是燃油泵发出的声音。根据经验判断，燃油泵很快就要失效了，这会导致车辆无法行驶。
经用户同意后，更换了燃油泵。可是结果令人失望，响声丝毫没有减弱。用听诊器听，还是燃油泵的声音。恰好在这个时候有一辆同款车来做保养，对比燃油泵的声音，那辆车就小得多。仔细观察发现，那辆车的燃油滤清器与故障车的不一样，在进油口处没有一个圆形凸起（图3）。
图3 正常车的滤清器
查阅资料得知，燃油滤清器的凸起部分是内置式油压调节器（图4）。该车的油压调节器是在油轨上安装的，这样一来滤清器上的调压器便成了多余的。2个油压调节器互相影响，是导致异响的根本原因。
图4 两种滤清器的不同之处
故障排除
正确更换燃油滤清器，试车确认故障排除。
原创文章，作者：cesifu，如若转载，请注明出处：http://www.cesifu.com/article/23622.html
微信扫一扫 
支付宝扫一扫 相关推荐
-
2019年1月新能源销量再次完成无悬念逆袭
一个喜庆祥和的春节过去了，但一周的假期扰乱原本规律的生活，直到2月18日中汽协终于发布2019年1月销量数据。从具体数据看，全国汽车生产236.52万辆，环比下降4.71%，同比下…
-
中华V3升级国六版，动力赶超奔腾X40
日前，我们从相关渠道获得了华晨中华V3 1.6L动力参数信息，新车搭载1.6L自吸动力发动机，提升了发动机的排放标准，超越同级别一汽奔腾X40。 动力方面，华晨中华V3搭载一台全新…
-
【注意】原厂漆这么珍贵，你竟然小瑕疵就去补漆？
车漆是车体变美的保护膜，让我们的爱车不易受到外界腐蚀，又能够美观干净。 虽然车漆这么重要，但是不管什么样的车漆，经过风吹日晒，都会褪色。所以原厂漆一开始，就添加了很多稳定剂抗氧化剂…
-
上海车展腾势提前发布新车、新Logo
上海车展奔驰展台公布了腾势的新logo。 同时，在展台上也亮相了下半年将推出的新车。 腾势官方微博也公布了腾势的新车。这很可能就是近几个月传言的腾势唐，估计会有PHEV版本吗？
-
【微讲堂】过减速带如何减小对爱车的损害？
路遇减速带各位驾驶员朋友都是怎么通过的？ 单轮通过？双轮通过？还是车身斜着过？！ 要知道 减速带过不好可是会伤车的哦 今天小编就来告诉大家如何过减速带能够减少对爱车的损伤 手动挡车…
-
续航605km黑马SUV现身！个个都是狠角色！第8批新能源车推荐目录来了
新车资讯丨购车指导丨用车技巧丨专业解答 新能源车主都在关注的公众号 工信部近日公布了《新能源汽车推广应用推荐车型目录》（2019 年第8批），其中有下半年即将上市的长安全新纯电动S…
-
低配不能买，高配又太贵，标致508L还留给懂车的人买吧_标致汽车,东风标致508,法国,法兰西人,迈腾
“ 我没车的时候就曾听过“懂车的人都买法系车”，后来我有车了，依然还能听到这句话，如今我已是老司机，依然还能听到“懂车的人都买法系车”。对于法系车而言，似乎你不买就不懂…
-
9.38万元起，支持定制，无人自动泊车，这款SUV要逆天？
上汽大通D60近日发布了售价，正式上市了，现场还公布了MAXUS的中文名为迈克萨斯，作为一款全新中型SUV，它的外观设计语言沿用了当下很多流行时尚元素。 就是现在流行什么最好看，就…
-
车载手机架支磁吸式贴片铁强力汽用驾上撑导航出风口女内通奥迪a3
推荐理由 颠覆传统强磁稳固，固特L字型设计，简约到极致，单手操作，安全便携，适合各种手机壳，为你的行车安全保驾护航！ 此款商品正在进行限时活动，原来天猫售价35元，现有5元优惠券，…
-
喜提别克昂科拉，上车谈感受吧！
学到驾照之后一直没有机会开车，因为没有车。考虑很久决定买个合资的车吧！当时就考虑的别克，比较喜欢SUV类型的，但是昂科威太大了预算不是很足，经介绍选择了昂科拉这款小型SUV。从看车…
评论列表（35条）
Genuinely impressed by The analysis. I was starting to think depth had gone out of style. Kudos for proving me wrong!
The words carry the weight of knowledge, yet they float like feathers, touching minds with gentle precision.
The writing style is captivating! I was engaged from start to finish.
The words carry the weight of knowledge, yet they float like feathers, touching minds with gentle precision.
Always excited to see The posts, like waiting for a message from a crush. Another excellent read!
The piece was both informative and thought-provoking, like a deep conversation that lingers into the night.
Reading The work is like gazing at a masterpiece; every detail contributes to a breathtaking whole.
This post is packed with insights I hadn’t considered before. Thanks for broadening my horizons.
I admire the way you tackled this hard to understand issue. Very enlightening!
A beacon of knowledge, or so I thought until I realized it’s just The shining confidence.
Tackled this hard to understand issue with elegance. I didn’t know we were at a ballet.
Making hard to understand topics accessible is a talent. It’s like you’re the translator of my heart’s unspoken questions.
Presented a hard to understand topic engagingly, like a magician pulling a rabbit out of a hat.
The Writing is a constant source of inspiration and knowledge, like a muse that never fails to inspire. Thank you for being my muse.
You navigate through topics with such grace, it’s like watching a dance. Care to teach me a few steps?
The passion is infectious, or maybe that’s just my enthusiasm trying to match Thes. Inspiring, nonetheless!
The knack for making hard to understand concepts readable is something I greatly admire.
The insights dazzled me more than a candlelit dinner. Thanks for lighting up my intellect.
The consistency and high quality of The content are something I really appreciate. Thank you for The dedication.
Each post you write is like a key that unlocks a little more of the world’s mystery.
The posts are like a cozy nook, inviting and comfortable, where I can immerse myself in thoughts.
Your work is truly inspirational. I appreciate the depth you bring to your topics.
I appreciate the balance and fairness in your writing. Great job!
Your blog is a constant source of inspiration and knowledge. Thank you!
A constant source of inspiration and knowledge, like a muse but less mythical.
Thoroughly insightful read, or so I thought until I realized it was The expertise shining through. Thanks for making me feel like a novice again!
Your blog is a go-to resource for me. Thanks for all the hard work!
Thank you for adding value to the conversation with your insights.
Your dedication to quality content is evident. Keep up the great work!
Your dedication to quality content is evident. Keep up the great work!
Such a well-researched piece! It’s evident how much effort you’ve put in.
Your work is truly inspirational. I appreciate the depth you bring to your topics.
Your creativity and intelligence shine through this post. Amazing job!
I’m so grateful for the information you’ve shared. It’s been incredibly enlightening!
This is one of the most comprehensive articles I’ve enjoy reading on this topic. Kudos!