二、故障现象描述
车辆行驶中反映发动机水温过高
三、故障分析思路及排除方法
1、基本检查:冷却液管和水箱没看到明显渗漏，防冻液液位正常
2、ISID快测，有以下相关故障码：2E82DME电动冷却液泵，关闭2E81DME电动冷却液泵转速偏差。
3、走检测计划如下
4、检查水泵插头连线，电压和PWM信号正常。
5、电脑激活电子水泵，用手触摸水泵壳体，有工作的震动感。
6、拆下水泵，转动水泵叶轮，有明显的卡滞感，但水泵的叶轮没有卡滞物。
7、更换水泵后试车正常。
电子水泵的工作原理
泵内集成的电子装置执行两个基本任务：调节并提供电压和电流，从而使EC 电机 和冷却液泵运转。按照发动机管理系统的要求，以调节泵 转速并向发动机管理系统反馈相关信息的 方式，调节冷却液流量。
拆检水泵
好几部车辆因为电子水泵转速差故障导 致水温高报警，但其原因是什么呢？拆下水泵后，发现水泵转子的涂层裂开 了，变大了，与定子滑套摩擦。
拆检水泵（完全卡死）
1、我们分别找了两个电子水泵进行了分解，水泵转子的涂层脱落，导致运转产生摩擦甚至卡死，引发发动机水温高报警。
2、也许是涂层质量问题，也许因为紧靠发动机，长时间高温导致水泵内涂层老化。
原创文章，作者：cesifu，如若转载，请注明出处：http://www.cesifu.com/article/28800.html
微信扫一扫 
支付宝扫一扫 相关推荐
-
用23万将GT-R改成全碳车身，这样就不会"车头太重而推头"了吧！
我发现一件事，你每次过弯都很不自然 虽然你这辆GT-R马力很大，不过车头很重， 秋名山这么多急弯， 你每次入弯，就一定会推头， 特别是最后那五连发夹弯， 你每次都拿不准最好路线， …
-
新人想骑摩托车，还处于C证实习期，应该怎么办？
摩托车作为机动车，根据道路交通安全法的相关规定，驾驶员必须取得相应准驾车型的驾驶证才能够合法上路。现在有不少年轻人，都有考取汽车驾驶证，也就是C1或者C2证，这类机动车驾驶证都有一…
-
Q3的电动小弟真的来了？奥迪发布Q4e-tron预告图
日前，奥迪宣布将在3月初举办的日内瓦国际车展上发布一款小型电动SUV——Q4 e-tron，它应该就是奥迪去年12月提到的“体型介于Q2与Q3之间的新车型”。如果这一定位没有猜错，…
-
颜值动力双全能的哈弗F5
随着90后步入社会，消费选择越来越向时尚化和个性化发展。大家不再满足于千篇一律的性能，过去那种只要是随波逐流的选择，便不会过时不会犯错的观念早已一去不复返。年轻的一代也不再追求于奢…
-
国产车就它最落魄，欧洲标准打造，安全同级第1，仅8万起却无人懂
说到近两年发展起来了的国产品牌轿车，吉利旗下的帝豪系列算一个，长安旗下的逸动系列算一个，奇瑞旗下的艾瑞泽系列算一个，另外能排的上号的也就基本上没有了。而对于这种现象不知道大家发现一…
-
踩刹车有吱吱的金属摩擦声，该换刹车片还是刹车盘？
大部分人都会遇到踩刹车有异响的情况，因为刹车片磨到极限了一定会响。一般是轻踩刹车有吱吱响声，重踩可能就不响了，还有转弯的时候即使不踩刹车也会沙沙的响。今天我们来说一说踩刹车有异响是…
-
吉利再度夺冠2018年中国品牌销量解析
[车师傅 新闻] 春节前夕，各汽车厂商陆续公布了自己的2018年销量成绩单，车师傅新闻频道会在未来几天内为大家带来中国品牌、主流合资品牌、豪华品牌2018年度销量解析。众所周知…
-
红旗新车发布会登“春晚”3款SUV发布/年内上市
相信大家都已经看了2019己亥年春节联欢晚会，除了一个个精彩的节目外，在本届春晚长春分会场上，红旗首发了全新中型SUV HS5，此外中大型SUV HS7和纯电动SUV E-HS3也…
-
老司机现身说法，开这5款车回家过年，里子面子都有了
路还是那破路，雨天一身泥晴天一身灰。快开到村口了，小编准备了一首《沙漠骆驼》，把车窗摇下来，音量开到最大。然而，由于从全省各地回来的车子太多，一路竟堵的望不到头，此时此刻小编也禁不…
-
高速误进ETC道咋办？接着开还是倒车？收费员说这是最好的方法_读卡器,人生第一份工作
高速公路收费站的ETC车道只能通行已安装ETC的车辆，没有安装ETC的车辆是不能通行的。如果搞不清ETC的标志，误入ETC车道，不仅可能引发大塞车，还有可能会被扣分罚款。然而到达高…
评论列表（33条）
I particularly enjoyed the manner this was written.
Thanks for creating this. It’s top quality.
I’ll surely recommend this.
You’ve clearly researched well.
Such a informative insight.
More posts like this would make the web a better place.
More posts like this would make the internet more useful.
The breadth in this piece is remarkable.
This post is fantastic.
I truly enjoyed the style this was presented.
More content pieces like this would make the internet more useful.
The breadth in this content is exceptional.
I truly liked the way this was laid out.
Such a informative bit of content.
Uncertain whether a secured loan is right for you? Understand the benefits, such as lower interest rates and increased flexibility.
Not sure if a secured loan is right for you? Understand the benefits, such as more favourable terms and increased flexibility.
Discover how a homeowner loan can help you obtain the money you need without selling your home. Compare lenders and customise a plan that fits your needs.
Home equity release may provide the financial support you’ve been needing. Learn how to use the equity tied up in your home without having to downsize.
Thinking about releasing equity from your home? Review top lenders and understand your financial responsibilities before making a decision.
Equity release solutions may provide the financial freedom you’ve been needing. Learn how to use the equity tied up in your home without having to downsize.
Home equity release may provide the financial support you’ve been looking for. Learn how to use the equity tied up in your home without having to move.
Unlock the value in your property with a reliable home equity loan — suitable for covering home improvements, large expenses, or refinancing.
Release the value in your property with a reliable home equity loan — ideal for covering home improvements, major purchases, or refinancing.
Not sure if a secured loan is right for you? Understand the benefits, such as more favourable terms and increased flexibility.
Home equity release may provide the financial support you’ve been needing. Learn how to tap into the equity tied up in your home without having to downsize.
Not sure if a secured loan is right for you? Explore the benefits, such as lower interest rates and larger borrowing amounts.
You may be able to secure larger loans and enjoy lower monthly repayments by taking out a loan secured on your property. Review current offers today.
Thinking about releasing equity from your home? Compare top lenders and understand your rights and obligations before making a decision.
Thinking about releasing equity from your home? Review top lenders and learn about your rights and obligations before making a decision.
You may be able to secure larger loans and enjoy better interest rates by using your home’s equity. Review current offers today.
Home equity release may provide the financial support you’ve been needing. Learn how to tap into the equity tied up in your home without having to move.
If you’re a property owner looking to get a loan, a secured loan could be a wise option. Leverage better rates by using your home as security.
HSBC’s equity release is designed to help homeowners unlock the wealth tied up in their property. Whether you’re looking to support family members, HSBC provides a secure solution with no need to sell your home. Their specialist advisors can walk you through the process with confidence.