Bad Fuel Filter Symptoms

任何汽车中最被忽视的替换部分肯定是燃油滤清器。每辆汽车，柴油或汽油都使用燃油过滤器来防止脏燃料进入燃油喷射系统并堵塞。

燃油滤清器大部分被藏在汽车下或油箱内。它仍然看不见，我们经常倾向于忘记它。是的，这是一个廉价的小替代部分，但在变质时可能会引起很多问题。

Some regions are known for having bad quality fuel. This leaves the company recommended fuel filter replacement schedule pointless.

When the fuel filter clogs up, look out for symptoms of bad fuel filter: Misfires, Stalling, Reduced Acceleration, and Noisy Fuel Pump.

但是，有些驾驶员甚至无法注意到这个问题，直到燃油滤清器变得如此窒息以至于汽车甚至无法启动。

燃油滤清器如何工作？

所有发动机都需要燃料才能做任何事情。如果任何碎屑阻碍了燃料流动，则会导致各种问题。

高公差现代发动机更容易受到高压燃油喷射系统燃料压力变化的影响，并且其中有很多传感器。

The fuel filter simply traps the debris and prevents it from entering the fuel injection system. The diesel engines are also more prone to have water contamination. This problem is so evident that many diesel fuel filters also come with a drain valve at the bottom of the housing to release the water.

燃油滤清器与燃油管线内线坐着。有两种类型的燃油滤清器，但两者都使用多种过滤纸来清洁燃料。唯一的区别在于住房：

墨盒式燃油滤清器：在这种类型的过滤器中，可以将过滤器本身的外壳分解。因此，仅需要更换过滤器墨盒。新的过滤器（纸元素）放置在同一外壳内。

Completely Replaceable fuel filter:This type of filter is just one piece and the entire unit is replaced. Modern cars mostly use this kind of fuel filter.

一些制造商还开始使用内置在燃油泵中的过滤器。因此，如果您在汽车上找不到燃油滤清器，那么它很可能内置在燃油泵中。

One would have to take the pump out of the fuel tank to clean the strainer. However, these filters are often labeled as lifetime use so in theory, it does not need replacement. In reality, however, these claims are often proven wrong due to the bad quality of fuel in some regions. Even if fuel quality is good, calling any part on a car as “lifetime” is just a misguided gimmick with an asterisk *.

不良燃油过滤器的症状

我们经常遇到与汽车相关的问题，这些问题可能是堵塞燃油滤清器的症状。当燃油滤清器堵塞时，它通过防止所需的燃料进入燃烧室来饿死发动机。这里有一些警告信号，可以帮助您解决问题：

加速感觉迟钝

如果您拥有很长时间的汽车并通知发动机电源，则可能是由于燃油滤清器堵塞所致。这辆车可能会在城市速度下运行良好，但是当您在高速公路上乘坐高速公路并长时间运行它时，肮脏的燃油滤清器将不允许所需的燃料通过。

检查了火花塞，MAF传感器和空气过滤器之类的东西后，最好检查燃油滤清器是否不脏。这也可能由于低油压or不良的EGR阀

随着您加速，发动机需要更多的燃料。但是，燃油管路的阻塞将导致发动机运转瘦（燃烧室中的空气过多）。

The white deposit on the spark plug is also a tell-tale sign of lean engine combustion. Also, in modern cars, you’ll most likely get “engine running lean” warning when you use an ECU scanner to find trouble codes.

负载下的引擎失火

当发动机燃料饥饿时，加速时也会导致失火。有些汽车还会使流行音乐和刘海从排气中涌出。作为失火车辆的驾驶员，您会注意到何时尝试加速发动机。

当您仅仅加速加速时，可能不会发生失火。因此，将踏板置于更高的齿轮上是检查发动机在负载下的性能的好方法。

发动机摊位

当堵塞严重时，汽车甚至可能无法驾驶。它可能会闲置，但是一旦您将其放入装备并尝试移动后，它就会停滞不前。只有当您忽略脏燃油滤清器的上述症状时，您才会体验到这一点。了解该怎么做当引擎过热时

嘈杂的燃油泵

燃油管路有堵塞时,燃料pump has to work extra hard to circulate the fuel. The increased pressure in the fuel line due to clogged fuel filter, make the fuel pump struggle. Most of the times the fuel pump will make a whining sound that clearly audible if you put your ear near the fuel cap.

所有这些也是故障燃油泵的症状

Some cars won’t show symptoms of a bad fuel filter

汽车制造商知道，大多数人都忽略了为燃油滤清器服务的服务。因此，有些汽车带有一种机制，如果燃油滤清器被阻塞，可以绕过燃油滤清器。结果是，即使燃料未正确过滤，燃油压力也保持在燃油喷油器上。

This system might seem convenient at first but it can lead to bigger problems. I wouldn’t want dirty fuel entering the combustion chamber. There is a high chance that some debris will get stuck in the fuel injector or valves. As you can see it’ll result in expensive repair bill fuel filter is not replaced timely. No warning signs until it’s time to replace injectors.

Bad Fuel pressure regulator also show similar symptoms

The fuel pressure regulator is responsible for maintaining the required pressure in the fuel rails. Having a faulty fuel pressure regulator can also show symptoms of a bad fuel filter. After all, they are part of the same system. Start by replacing the fuel filter and then see if the problem is fixed. If not, then get the regulator pressure tested by a good mechanic.

However, sometimes, the faulty fuel pressure regulator can also lead to more than required pressure in the fuel rail. Then the car might emit black smoke and the spark plugs will get black soot deposit on them.

How often should you replace Fuel Filter?

大多数汽车制造商建议新的燃油滤清器每20,000英里或32，000公里。But every car is different, some use bigger fuel filter that can last a long time, while some use small filters that needs to be replaced more often. Your owner’s manual would tell exactly what your car manufacturer recommends.

That said, if you know that the fuel quality in your area is not the best, it’s best to replace fuel filter much earlier than what the manual says. After all, they are quite inexpensive in the first place. Regularly使用燃油系统清洁剂也有帮助。亚马逊上最好的燃油系统清洁剂

柴油燃料过滤器需要更多的关注

尤其应在柴油车上及时更换燃料过滤器。为什么？因为柴油箱更可能有真菌和储罐内的细菌生长。Also, it’s a good idea to use additives like Diesel fuel conditioner for controlling microbial growth inside the fuel tank.

了解如何更换燃油过滤器

Watch this video tutorial by Chrisfix

FAQs about Fuel Filter Issues:

Will Bad Fuel Filter Throw Check Engine Light?

Yes, a blocked fuel filter with most likely throw a error code. The codes can be related to low fuel pressure or lean engine running.

What are the signs of Clogged Fuel Filter?

不良燃料过滤器的响应物可能是：缺乏电源，发动机失速，负载下的发动机失火以及嘈杂的燃油泵。

堵塞过滤器时，燃油泵会产生什么样的噪音？

When the fuel filter is not able to supply required fuel, the fuel pump struggles to maintain required pressure. You can hear knocking or ticking sound from the engine bay in this case.

How Often should you replace Fuel Filter?

Many car manufacturers suggest fuel filter replacement at 20,000 miles or 30,000 km. If you suspect that fuel quality in your area is not the best, then it doesn’t hurt to do it everytime your change engine oil.