Will a Dirty Fuel Filter Cause Engine Shaking?

[EmilianoLynn]

A clogged fuel filter can indeed cause engine idle shaking. However, it's important to note that engine idle shaking does not necessarily mean the fuel filter is definitely dirty. The primary function of the fuel filter is to remove impurities from the gasoline, preventing them from entering the injection valve and cold start valve, thereby ensuring the quality of gasoline flowing into the fuel system. It functions similarly to the 'kidneys' in the human body. More details are as follows: 1. If the fuel filter is not replaced for a long time, excessive dirt or clogging can affect engine performance, including slower acceleration response, difficulty in generating power, and even trouble starting the vehicle. 2. The general replacement interval for a fuel filter is every 10,000 to 15,000 kilometers. Fuel filters come in two types based on their location: external inline and internal. Comparatively, internal filters are slightly more expensive and have a longer replacement interval than external ones. 3. Replacing a fuel filter is a relatively complex operation, so it is recommended that car owners leave this task to professional repair shops or 4S stores.