Car gas pumps are of two types: mechanical and electrical. The former draws in fuel from the tank, while the latter, on the contrary, push gasoline into the engine. Both are equipped with a filter. This mesh becomes dirty over time, which increases the load on the gas pump up to its failure.
Necessary
- - fuel pump
- - gasoline
- - water
- - filter mesh
- - screwdriver
- - wrench
Instructions
Step 1
If your car has traveled 70-90 thousand kilometers, and at the same time you often operate a car with an almost empty tank (preferably half full), diagnose the car's fuel pump. If the pressure created by the fuel pump in the fuel path is insufficient, the engine power of the car is reduced, malfunctions occur, or the engine suddenly stops starting, first of all check the filtration system. Most often, the cause of these problems is in the dirty inlet grid of the gasoline pump, the holes of which are eventually clogged with foreign particles (dust, scale, rust, sand) that have got into the gasoline.
Step 2
Listen to the work of the gas pump. It works much more noisily when a special filter mesh does not allow the required amount of fuel to pass through due to contamination or defects. Under such conditions, the electric motor of the gasoline pump works with overloads, which leads to its premature wear and even failure.
Step 3
Check the fuel pump strainer. To do this, de-energize the fuel pump in any convenient way: by turning off the fuse or removing the relay. Start the engine to relieve pressure in the fuel line. After a couple of seconds, the engine will stall.
Step 4
Remove the fuel pump access hatch cover. Carefully remove dust and dirt accumulated on its surface. Disconnect the main pipelines using a screwdriver and wrench, or unscrew the fasteners of their connectors. Remove the fuel pump.
Step 5
If the design of the fuel pump is simple, the filter mesh is located outside. Remove it and rinse it with a jet of water to remove any foreign particles trapped in the holes. They are sometimes so small - 20 microns, that they are invisible to the naked eye. Dry thoroughly by blowing with compressed air. If cleaning fails, replace the filter.
Step 6
If the fuel pump is in a flask, carefully disassemble the structure. Disconnect the fuel level sensors, remove the top cover, remove the fuel pump from the outer flask. Clean the openings of the screen from foreign particles with a water jet and blowing out with compressed air or install a new filter. Flush the fuel pump with unleaded gasoline.
Step 7
Collect everything in reverse order. Reinstall the fuel pump and fuel hoses. After a day, check if gasoline is leaking in the area of the fuel pump.
