Having changed the fuel pump, the car will not start with Volkswagen.
Golovna Auto gadgets and products One of the most important elements is the electric fuel pump, which is found in
fire tank car. The exhaust pump pumps the air into the system, creating a strong pressure.
- Automotive repair workers see these broader problems
- burning system
, which are connected with the firing pump:
the fuel pump malfunctions and does not create the required pressure;
the fuel pump does not pump when the ignition is on;
Considering that the fuel pump is an electromechanical device, the most common fuel pump malfunctions are related to both the mechanical and electrical parts.
- Next, we will look at what signs indicate a breakdown of the fuel pump and why the fuel pump often stops pumping.
- Read this article
Signs of fuel pump malfunctions
The main symptoms of a faulty fuel pump, as well as malfunctions in your robot:
the car starts with force, the engine runs unsteadily, failures are avoided, jerking when pressing on the gas pedal; the pump does not turn on after the ignition is turned on, and the fuel pump does not turn on, the engine does not start; Failures have also been noted when the fuel pump stops pumping right in Russia.
The engine in such a situation begins to malfunction and immediately after the excess gasoline is wasted in the burning highway.
To check it, you need to measure the pressure on the front rail with a pressure gauge to ensure that the indicators are correct, as is normal for a particular car model.
- On the butt of injection VAZs, the pressure when the ignition is turned on is 3 atmospheres, on unarmed ones the pressure becomes 2.5 atmospheres, when pressure is applied to the gas 2.5-3 atmospheres.
- This method will help you accurately determine:
- malfunction of the ramp vise regulator;
breakdown of the fuel pump or a significant decrease in its productivity due to wear;
heavily clogged filters (burnt filter and/or fuel pump screen); In the other case, when the gas is pressed, the pressure does not increase; in the remaining case, the pressure gauge needle rises, either completely or in jerks. A decrease in the performance of the pressure lower than the norm has led to the fact that the engine may not start or start with force, trip, jam, run unsteadily and with failures.
This is due to the fault of the pump, not
scorching filter There is a high probability that the coarse cleaning strainer of the fuel pump is clogged. In this case there is no need, so it will be enough to replace or clean the mesh.
If there is a suspicion that there is no voltage to the fuel pump, a quick check method is used.
All you have to do is turn the key and listen, and when you turn the key you will hear a slight hum from the fuel pump. If there is no such thing, it means that there is no need for the fuel pump, and there are problems with the wiring. It should be noted that this method of calculating the pump’s operation by sound is not suitable for all cars.
- On some models (especially the “premium” class), sound insulation is at a high level and the fuel pump turns on immediately after the engine is closed.
- water doors
- , and not when you turn the key in the lock.
- In this situation, you may find that the fuel pump does not work when the ignition is turned on, when
- The sound of the robotic pump is just barely noticeable.
- Same with the secret list
Possible reasons
, for which the fuel pump does not pump, the following is indicated:
To check the power supply to the fuel pump, all you need to do is take a 12-volt light bulb and apply power to it from the external socket of the fuel pump.
After turning the igniter, the control lamp will light up.
If someone doesn’t show up, that means the problem is with the foreigners.
When the lamp lights up, it is necessary to check the internal contacts of the fuel pump.
To check the external wiring, follow the connections of the positive and negative contacts that are connected to the firing pump life connector to the pump ground.
The contacts also need to be connected to the fuel pump relay. You can place a negative contact on the ground, after which the ignition turns on and the light comes on, which means that this contact is faulty. In this case, since the light bulb did not come on, there are obvious problems with the “plus”.
If you place a contact on the relay and the light bulb, which burns out, it is likely that the cut-out that connects the relay and the fuel pump itself becomes damaged.
Electric fuel pump motor If checking the pressure in the firing ramp and the external wiring to the fuel pump gives positive results, then check the motor of the fuel pump. The electric motor is responsible for circulating gasoline in the middle of the firing pump.
Before the hour of checking, it is necessary to ensure that the seals on the fuel pump themselves may oxidize, as a result of which life is not supplied and the pump does not fire.
When you turn the key, you hear a characteristic clicking sound (the relay has gone dark), then a similar clicking sound whenever the fuel pump relay is turned on.
Such a clicking sound does not indicate a malfunction of the relay or any of its contacts.
The best solution would be to replace the fuel pump relay with a new or proven device. Additionally, the price of spare parts is completely affordable. Devotee of the fuel pump
At the hour of diagnostics, check the fuel pump. Appointments for a 15 A Zapobizhnik, please reschedule in the Zapozhnik block underhood space
It is marked FUEL PUMP, which in translation means a fire pump.
You need to pull out the fuel pump and look at its contact.
The integrity of the contact will indicate that the device is normal.
Damaged contacts, including those that cause the fuel pump to burn out.
At whose end it is necessary to place a new defender, who may already
low level
(as is the situation with the fuel pump relay).
Other causes of fuel pump malfunctions
Often unprofessional installation of additional electrical equipment or security anti-fuel systems can lead to the fact that the life on the fuel pump is due to mixed up contacts or other connection issues.
Also, do not turn off the possibility that the car alarm or security system will malfunction, after which the fuel pump will be blocked. In other words, . Finally, it is clear that the gas pump at the gas tank is immersed in gasoline, in which it actively cools.
If you drive with an empty tank, you may quickly disable the electric motor of the fuel pump, which may cause it to burn out.
Read also it is necessary to bleed the system with additional so.
carburetor cars
(Although they are already 10 years old, they won’t let go), it’s even simpler - we just pump up the fuel and hoses, pressing on the main part of the gasoline pump 10-20 times.
It is important not to push, just turn the engine 1/2 turn with the starter. We bled the system and tried to start it. As soon as the engine starts, everything is fine, as we begin to remember what we were doing and making jokes about.
Like an external filter. As a rule, systems with an external combustion filter have two filters! Filter
fine cleansing
, as in the picture there is a coarse filter, there is a spark plug in the tank. If you haven’t replaced it, replace it. The main problem is that the engine does not start, after replacing the fuel filter there is a crack in the hoses!
Unclear hoses swell, because they are braided, and they block the internal opening. As long as you don’t steal them, the smell still works, but after replacing the filter (if you twist and stretch them), the stench may become unattractive.(this is a typical problem with cheap hoses).
To check this method, remove the supply hose from the firing ramp and open the lock to the “firing” position,
The starter is non-stick and non-smoking!
Since the hose is a hot stream of gasoline, the reason is not to replace the filter, wonder what else was done. If it’s hot enough to run, check the hoses (according to science, you need to take a pressure gauge and apply the pressure, especially since I don’t have a pressure gauge with an adapter for checking the pressure).. The combustion module consists of a pump, combustion filters, a pressure regulator and a combustion level regulator.
This is how you speak. This is the craziest fall, fragments, I'll probably have to go through everything again
.
Before speaking, when replacing the filter in the firing module, remove as many jambs as possible.
First of all, we check it - we take the feed from the ramp, open the lock and marvel at how hard it is to run and how fast it is. (from science it is necessary to take a pressure gauge and measure the vise, but especially in my country there is no pressure gauge with an adapter for checking the vise). If there is no escape from the scorch, we remove the scorch module and check where we messed up, there are not a lot of options for the stink axis:
Everything everything typical problems Because after replacing the fuel filter, the car will not start, I believe.
I hope that the statue was cinnamon.
Colleagues, that’s all I have for today.
If your car is not surprised at all and does not start, go to the service.
Before speech, for great places accessible
- online service
at your choice of auto repair shop. That's all for today. If you have lost your food, or if you would like to supplement the article, write comments.
- It happens that after replacing the fuel filter, drivers have problems - the car has trouble starting.
Below are recommendations for the benefit of people who rendered the car unusable, saving on components.
Pumping the combustion system Let's look at two main options:, there are two filter elements.
First, rough cleaning, used for cleaning rough mechanical houses.
Another, finer purification, from other third-party bodies.
It is better to change them in pairs.
If after all the procedures the car does not start, it is necessary to put pressure on the hoses, the smell is often low and swelling, and is the main reason for the inability to start the engine.
Cheap hoses simply become useless once they are disturbed.
The braiding, which trims their calls, means that the internal opening overlaps.
- To avoid this situation, it is enough to remove the supply hose from the rack and open the lock to the “ignition” position; there is no need to turn on the starter.
- If a heavy stream of gasoline flows from the hose, there is no point in changing the filter.
- If the flow rate is low, it is necessary to check the hoses with a pressure gauge and apply pressure.
- Warehouse
A characteristic feature of such elements is the pressure regulator, which is used in the mechanism.
Sometimes there are defects in cheap analogues, due to which the machine does not start.
The same result is caused by swollen hoses, the problem described in the previous paragraph. Installations at the fire tank In this situation, when it comes to everything, you will have to sort everything out, but you will need to check everything right away.
- It is necessary to remove the feed from the rails, open the lock and roll over, or run hard and in some kind of difficulty. If the stove is not leaking, there are many reasons for the problem: a torn or improperly dressed ring;
- the exhaust hose is not completely attached to the pump or filter;
- the vise regulator is not fixed;
The electrical terminal is not attached to the pump.
- An incorrectly selected filter can also cause startup problems.
- It is necessary to reconcile the integrity and equality of the abusers.
- If the nozzles are connected incorrectly, you will need to transfer the darts.
- This will also give respect to the candles. There is a possibility of incorrect installation. You can check it by rearranging the coils, and at the same time checking their integrity.
- In this case, the culprit may be black carbon deposits, the appearance of which is associated with the unusual burning of the fire, as well as the incorrect operation of the vehicle’s fire system.
- Incorrectly mixed separate shafts Rarely, otherwise you may end up with problems.
Ne varto nekhtuvati tsim.