Contamination of the fuel system does not occur due to the ingress of foreign solid particles – they are quite effectively captured by fuel filters. The reason is the substances that are included directly in the fuel; it is simply impossible to filter them.
Since gasoline or diesel fuel used by owners of Lexus and other brands are not homogeneous liquids, they contain lighter and heavier fractions of carbon. During engine operation, combustion of lighter elements occurs faster and relatively painlessly, while heavier fractions form carbon deposits during combustion. In addition, the fuel contains other substances that, when passing through the fuel system, coat all its elements, forming unwanted deposits. Considering that the temperature in a running engine is much higher than the atmospheric temperature, the heating and combustion of all these substances and elements leads to contamination of engine parts and the fuel system, in particular the injectors.
Why is the normal operation of injectors important? The nozzle, due to its design, provides a uniform cone-shaped spray of fuel, which forms the so-called spray torch. And the clearer and better the quality of this spray, the faster the fuel burns, ensuring stable engine operation.
What happens as a result of carbon deposits and clogged injectors? – the angle and quality of spraying are disrupted, which ultimately leads to engine malfunctions.
If a car owner wants to have a reliable car and expects a long service life, then regular flushing of the fuel system is a necessity.
The main signs and causes of a clogged fuel system
Car owners are familiar with the situation when a car that seems to have no problems at first glance suddenly begins to act up. At the same time, automation and control systems remain stubbornly silent and do not signal the existence of problems. The likelihood that the cause of this behavior is a clogged fuel system is very high if the following phenomena are observed during vehicle operation:
- the occurrence of detonation pops when accelerating a car;
- unstable operation at idle;
- decrease in specific power and deterioration in engine starting;
- increased fuel consumption;
- in transient modes, inconsistent operation of the motor is noted;
- exhaust hazard increases;
- breakdown of the lambda probe oxygen sensor and catalytic converter;
- The gas pedal goes down when you press it hard.
It is impossible to completely avoid the gradual clogging of the fuel system, and the owner will still need to flush the Lexus fuel system. However, preventative measures significantly reduce the risk of sudden engine problems. The main reason for premature clogging of the system is the use of low-quality fuel. This is the case when savings lead to additional costs and threaten traffic safety. Therefore, the use of high-quality fuel can also be called a preventive measure for the quality functioning of the car’s fuel system.
Advantages of contacting a service center for flushing
Today, one of the most popular methods of flushing the fuel system among drivers of Toyota and other brands is the use of a special liquid. It is poured into the fuel tank, and then you drive as usual, and at this time the autochemical fluid flushes the tank itself and the entire fuel system.
How effective is this method? Indeed, the use of liquid is possible and even necessary, but only as a periodic preventive measure after you have carried out a high-quality professional flushing of the system. The fact is that if there is already serious blockage and carbon deposits in the system, then such flushing can lead to the fact that the contaminants removed as a result of its influence will clog the fuel filters, the mesh and the fuel pump, or even the injectors themselves. The result is a worsening problem.
Self-flushing of the Toyota fuel system using special liquids is only relevant for minor blockages, and it is recommended to purchase high-quality compounds from well-known manufacturers.
Experts strongly recommend contacting a service center to flush the entire fuel system. Here, special equipment is used for complete rinsing. The technician disconnects the fuel pump and connects a special compressor in its place, which directs the solvent directly into the fuel system. The more mileage the car has and the more severe the blockage, the longer it will take to flush.
Also, as a temporary measure, the injector is sometimes washed using an ultrasonic stand. However, this service is aimed exclusively at cleaning injectors, so it can also be considered preventative.
