What problems can arise from not changing the gasoline filter for a long time?
2 Answers
Not changing the gasoline filter for a long time can cause the filter to become clogged, reducing fuel supply pressure and leading to issues such as poor acceleration and difficulty starting. It also increases the load on the fuel pump, eventually causing damage to the fuel pump. Under normal driving conditions, it is recommended to replace the gasoline filter every 30,000 kilometers. If the quality of the gasoline used is poor, the replacement interval should be shortened, and it can be replaced every 20,000 kilometers. Replacing the gasoline filter is a relatively complex operation, so it is recommended to have it done at a professional repair shop or a 4S shop. The gasoline filter is mainly used to filter impurities in the gasoline, preventing them from entering the injection valve and cold start valve, ensuring the quality of the gasoline flowing into the fuel system. If not changed for a long time, contamination can become increasingly severe, potentially causing blockages, reducing fuel supply pressure, and leading to insufficient fuel supply. This can result in decreased engine power, difficulty starting, rough idling, and weak acceleration. Additionally, a clogged gasoline filter can cause poor fuel atomization, leading to an imbalance in the air-fuel mixture ratio and incomplete combustion, which produces carbon deposits. These carbon deposits can worsen the blockage of the three-way catalytic converter, contaminate the spark plugs and front oxygen sensor, leading to excessive emissions and other faults.
My old car suffered a lot because I didn't change the fuel filter for a long time. If you don't replace it on time, impurities in the fuel system will accumulate more and more, just like a water pipe clogged with sludge. Over time, the fuel pump has to work twice as hard and is particularly prone to burning out. Replacing one costs around a thousand bucks. Moreover, the car will feel like the throttle is heavy, and acceleration becomes sluggish. Sometimes, it even stalls suddenly at a red light. The most troublesome part is when the fuel injectors get clogged with impurities—cleaning them is expensive and a hassle. Now, I've developed the habit of replacing the filter every 30,000 kilometers, which saves a lot of trouble. In fact, the cost of replacing a filter is much cheaper than repairing a fuel pump. Don't lose big for small gains!
