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
-
如何撬开10_东风启辰,新能源汽车,原汁原味的德系SUV,市场营销,能源,新能源,法雷奥,世界杯足球赛,篮球的夏天,成都,成都车展,汽车展览,设计,技术
“ 翻阅近几年的汽车销售数据，我们可以发现，10-15万价位的车辆在销售总额中的占比达到了三成，因为这正是大多数消费者在家用车选择中所能够承担的价格。所以，在这个主流市…
-
成长的路上，全新换代雷凌不再妥协
文丨曹佳东 编辑丨小叮当 五年时间，从零开始，到于中级车市场塑造出一个全新的价值标杆，这样的雷凌理应值得令人尊敬。 看着曾经风光无限的中国车市逐渐失色，看着被SUV压制多年的轿车市…
-
奥迪A4降7万，宝马3系打8折！豪华品牌中级车降价排行榜出炉！
不论80后还是90后，父母辈都有一个开豪车的梦想，尤其是江浙沪地区，原因很简单，受90年代先富起来的“万元户”们影响。在那个年代一个人如果夹着“大哥大”开着一辆价值六七十万的皇冠、…
-
在选择困难时，不妨点个“全家桶” 试驾2020款VV7&VV7 GT
把一个车型打造成一个家族的做法，在不少品牌主力热销车型中很常见。而车系家族的出现，恰恰说明了其生命力之强大，产品之受欢迎。所以说，这届消费者是幸福的，即便当你选择困难，也不用担心找…
-
颜值高动力强劲油耗很低的SUV究竟有没有，这几款你可能不知道
随着国内汽车行业的发展，汽车已经不再仅仅是一个代步工具，它还兼具着彰显身份、地位和形象的作用。对于很多年轻人来讲，拥有一台属于自己的车，成为了他们眼下最迫切需要解决的问题。但是很多…
-
红旗HS7现身街头，338马力配爱信8AT，气场很大，要崛起？
放下身份，何愁复兴——红旗 “红旗”汽车相比大家都有所了解，作为自主汽车行业的“开山鼻祖”已经有几十年于久，它在我们的心里一直处于一个“信仰”高高在上的一种表现，红旗L5就是一个例…
-
汽车轮胎近期要涨价？换轮胎的抓紧了！
咱们在学驾照时常听到这样一句话：开车前要绕车一周检查。事实上确实有这个必要，其中轮胎应当是检查的重点，因为轮胎是汽车和地面唯一接触的部件，它是汽车实现加速、刹车、转弯等一切操作能够…
-
与产品攻势同步，宝马2019主攻“四化”落地中国
来源：经济日报-中国经济网 记者王跃跃 2018年，宝马的工作重点是两家合资企业前瞻布局。从2019年开始，宝马在中国的战略重点将放在ACES领域，无论是成立数字化业务公司，还是推…
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!