To protect the injectors and piston group from contamination and corrosion, it is necessary to thoroughly clean the incoming fuel from foreign particles, moisture and resins. This function is performed by a filter element that is installed between the tank and the pump.
The fuel filter in a car performs the function of purifying the fuel from foreign impurities.
... about the signs of a clogged filter
The most common signs of a clogged fuel filter are high fuel consumption and reduced engine power, so the layer must be changed regularly.
Symptoms of a clogged fuel filter
To protect the injectors and piston group from contamination and corrosion, it is necessary to thoroughly clean the incoming fuel from foreign particles, moisture and resins. This function is performed by a filter element that is installed between the tank and the pump.
The most common signs of a clogged fuel filter are high fuel consumption and reduced engine power, so the layer must be changed regularly.
Causes of a clogged fuel filter
The reasons for filter contamination are:
- low quality gasoline or diesel fuel;
- penetration of water into the tank with subsequent formation of ice crystals at low ambient temperatures;
- surface corrosion with release of metal particles and oxides;
- accumulation of resins and foreign impurities from oil and additives;
- accumulation of dirt and bottom sediments in the fuel tank;
- very dusty air, frequent off-road trips.
Self-diagnosis
Filter diagnostics include assessing engine performance during operation, measuring fuel pressure and visual inspection. Measurements are taken through the ramp fitting, which distributes fuel to the injectors.
- hose with internal diameter 9 mm;
- fastening clamp;
- a device for determining gasoline pressure or a pressure gauge with a value range of 7-10 bar.
A special device can be purchased at a car store. The pressure gauge is connected to the hose and tightened securely with a clamp. To ensure the tightness of the contact, sanitary flax is used. The hose is connected to the fuel pressure fitting, after first removing the plug from it and removing the nipple.
After this, measurements are taken in various engine operating modes (at idle, after starting, with the drain tube pinched). The indicator after turning on the ignition should be at least 3.8-4 bar.
After the measurement, you need to turn off the engine and wait 20-30 minutes for the regulator to gradually reduce the pressure in the ramp. After this, disconnect the pressure gauge and reinstall the nipple and plug.
