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How many hours does it take to replace a fuel pump?

2 Answers

LeColton

09/07/25 6:25am

Replacing a fuel pump takes about two hours. The function of the fuel pump is to supply the necessary fuel to each injector and cold start injector. In electronic control fuel injection systems, there are generally two types of electric fuel pumps used: roller-type electric fuel pumps and vane-type electric fuel pumps. The roller-type electric fuel pump has an inlet at one end of the pump casing and an outlet at the other end. Relevant information about engine oil is as follows: 1. Introduction: Engine oil, also known as engine lubricant, with the English name Engine-oil. It has a density of approximately 0.91×10³ (kg/m³) and serves to lubricate and reduce friction in the engine, assist in cooling, seal against leaks, prevent rust and corrosion, and provide shock absorption. It is known as the 'blood' of a car. 2. Composition: Engine oil consists of base oil and additives. The base oil is the main component of lubricating oil, determining its basic properties, while additives compensate for and improve any deficiencies in the base oil's performance, imparting new characteristics, making them an important part of lubricating oil.

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LaFelicity

09/19/25 5:37am

I just replaced the fuel pump myself, and the whole process took over three hours. Most of the time was spent removing the fuel tank—first, I had to drain all the gasoline, and the exhaust pipe bolts were particularly stubborn due to rust, requiring penetrating oil and a 30-minute wait. When installing the new fuel pump, I had to be extra careful with the seal ring's position; misalignment would cause leaks, and it took over 20 minutes of repeated adjustments. After reassembly, I had to test the fuel pressure and connect the diagnostic tool to check the data stream, which also took time. My advice to inexperienced car owners is not to attempt this themselves—even removing the rear seat clips can easily break them, and lacking the right tools makes it even more troublesome. A professional technician can usually complete the job in about two hours.

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