1. The role of the diesel filter
The role of fuel filters is not to allow impurities to penetrate it. The diesel filter is one of the elements of the vehicle’s power supply system. He is responsible for filtering rust and dirt contained in the diesel storage tanks, as well as with the removal of water from fuel.
When the diesel filter is clogged, it creates too high hydraulic resistance and interrupts the normal functioning of the fuel power supply system.
A decrease in the filter’s ability will cause damage to sensitive fuel equipment: this is about injectors, high pressure fuel pump -. This is the most expensive repair that threatens the owner of a diesel engine and is fully due to its negligence.
2. Because the diesel filter is clogged
A clogged fuel filter can damage the engine and cause the vehicle to stop.
The main causes that lead to the outgoing of the diesel filter are:
- Accumulation of dust and dirt;
- Corrosion due to the condensation of water
- The accumulation of resin deposits
- Block fuel equipment tubes with ice cream water crystals.
3. Clogged diesellical symptoms filter
An clogged diesel filter has the following symptoms:
- Increases fuel consumption;
- In the climb there is the feeling that the car is suddenly destroyed;
- When the car works, the engine begins to trample;
- The vehicle stops while walking empty;
- The car can curb without the driver who presses the brake pedal;
- When the engine speed increases, the power decreases in the engine.
- The impossibility of starting the first key.
- The reduced power of the engine is due to the fact that the engine has a degree of cleaning up to 5-10 microns. Therefore, the smaller particles are drained in the fuel injection system. It does not deteriorate it, but significantly affects the engine performance.
In petrol cars, the filter is gradually and almost imperceptible for the car driver. This is due to the high degree of purification of gasoline. It has 15-20 microns, therefore the large particles of contaminants practically do not enter the fuel tube and do not damage the injection system.
The interruptions of the fuel filter do not appear suddenly. Initially the symptoms seem insignificant, but in no case should they not be ignored, otherwise the device can fail. To prevent this that it is necessary to pay attention to any change that appears in the operation of the engine and change the filter in time, according to the manufacturer’s recommendations.
If the diesel filter is clogged, it is advisable to contact an authorized service to replace it. Of course, if you have equipment, knowledge and patience, you can do this job.
3.1 The unusual sounds of the dirty filter
Another way to determine when it is time to change the fuel filter is to close all the noises closely, together with the general behavior of the car.
- The reduction of the filtration flow is indicated by the following signs:
- The engine does not start from the first;
- The engine loses visible from power, especially when climbing the ramp;
- The engine has swamps, as well as some unusual sounds;
- It seems so -called «Speed of Floating Fan»;
- A delayed response is observed when using the accelerator pedal;
- The Sacade and a certain instability can be felt when the car works under the activity;
- Increases fuel consumption.
3.2 The engine power is reduced
There are often situations in which the engine does not develop its maximum power. This can also occur in the absence of black, black or blue smoke.
The main cause known for the appearance of these symptoms is the decrease in the permeability of the coarse fuel filter in the car tank, together to reduce the permeability of the fine fuel filter.
Of course, most vehicle users consider the most effective way to prevent the car’s operating problems from following the manufacturer’s indications. The number of kilometers should have passed on the filter that should be taken with it or the period of time. Therefore, if you replace the filters of good faith, when you have reached time, the chances of having problems are very small.
However, there are few situations in which problems arise because producers have not taken into account the presence of water or dirty in diesel. In this case, the first and most important rule if you want the engine to have maximum power is to change the fuel filter at least after half of the specified manufacturer.
3.3 The engine starts to stop suddenly
If the car stops in motion or immediately after the start it could be the following causes:
- The fuel tube is damaged;
- The boiling pump broke;
- Defect of the activation of the piston separator, the pistons or the rotor of the injection pump due to significant wear;
- Regulating the progress of the injection is violated;
- The air filter is clogged;
- The fuel filter is clogged.
3.4 The engine begins to give «faults»
If the fuel filter is completely blocked or clogged at the point where the flow of fuel on the vehicle engine is interrupted, the vehicle does not start. In order for the car to start it is essential that the air and fuel can light up in optimal conditions.
Therefore, a fuel filter partially blocked or clogged causes the vehicle to be difficult to start and repeated «rates». The low or limited fuel flow caused by a clogged filter will prevent the start of the normal engine.
3.5 Problems are encountered when the engine is on
The engine gap is a regular symptom of a clogged fuel filter. Provide an abnormal fuel flow to the vehicle engine – a condition that causes abnormal combustion of the mixture and the reduced power of the engine – a clogged fuel filter can cause rinsing or encounter when started.
3.6 oscillates ranks from the car
Being able to work normally, it is important that the engine has a supply of stable diesel/petrol. Therefore, a clogged fuel filter limits the flow of fuel that moves to the engine. In this way, the oscillations so called appear in the ranks.
The more these symptoms appear, the more cure for the replacement of the fuel filter must grow.
3.7 From the drain tube a smell of smoke or oil comes
If the fuel filter is dirty, the fuel reached in the engine is contaminated and the car will not work as efficient as before.
This specific symptom can be difficult to recognize at the beginning because it is possible to obtain good performance by pressing the acceleration flap or bringing to the speed of the highway.
Even with a dirty fuel filter, fuel can reach the engine if there is a flow. At high speed, the engine pressure will provide ideal conditions for efficient driving but the smell of smoking from the drain tube, smoking with burnt oil will not be missing.
So, if you notice that a smell of smoke or oil, stop on duty and ask for a diagnosis. It is very possible to replace this filter.
4. How many km the diesel filter changes
Most craftsmen recommend that the replacement of the diesel filter should be carried out somewhere between 15,000-20,000 km, in the case of external filters and up to 40,000-60,000 km for filter cartridges (assembled).
There are fuel filters in which the duration of the life indicated by the manufacturers is 15,000-40,000 km, depending on the type of filter:
- For conventional external filters (barrels) we speak of a life of a lifetime up to 20,000-30,000 km;
- For filter cartridges it is higher, reaching up to 60,000-120,000 km.
Specialist advice:
It is recommended to replace fuel filters in the autumn, before the first symptoms of the cold season. In this way, the flow of the new filter will be greater – it will certainly be enough to thicken cold fuel – which cannot be said on the filter that collects diesel impurities for one or two seasons.
It is not enough to replace only the filter. Therefore, all the diesel from the tank must be emptied and must be cleaned.
In addition, when buying a used car with diesel engine, it is essential to replace the diesel filter immediately after being in possession.
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