I will try to collect all that is available on this moment information.
The hatch for access to the fuel pump from the passenger compartment is made in order to be able to repair, replace and diagnose the fuel pump and other elements of the fuel system in the tank without removing the fuel tank. In the standard version, this can be done only by removing the tank, and removing it with gasoline is not the most pleasant / cheap pleasure. Those. in fact, if a gas pump malfunctions, you can buy a gas pump from a VAZ 2110 in any village and continue to drive quietly.
Moreover, on some very respectable cars of other brands, hatches are already made at the factory, here are examples: A hatch for access to the gas pump from the passenger compartment. (P) (message # 18084660)
Benefits:
1. You can replace / repair the fuel pump, fuel sensor and other elements of the fuel system without removing the tank. Added on 08/17/2013 Incl. in fact in an open field. You will only need to buy an impeller at the nearest store. Here is an example from real life: A hatch for accessing the fuel pump from the passenger compartment. (P) (message # 14418759)
2. You can see firsthand how the fuel system in the tank functions. Example: Pressure in the fuel line, rail (message # 10080584) Try to do it differently!
2.1 You can check the voltage at the connector that fits the gas pump at the time of the problem and make an assumption that the problem is in the gas pump or in the electrician. (added 04/13/2011)
3. Feel the smell of gasoline in the passenger compartment if gasoline starts to ooze through the fuel pump cover. If everything is functioning normally, then there will be no smell of gasoline in the cabin. Tested by many teammates.
4. Change the fuel pump 4 times a day. Removing the tank will not work. I had to do this until I realized that gasoline was leaving. see item 2
Additionally: Removing the tank does not give any advantages over the hole.

Disadvantages:
1. The rigidity of the body may be compromised. Very controversial. There is no evidence. There are no examples either.
2. Corrosion is possible in the place of the cut-out hatch. Personally, I have not a hint for 2 years.
2. The smell of gasoline in the cabin is possible. see item 3 Advantages.
3. You can cut yourself on the edge of the beam when unscrewing the fuel pump cover. See methods of unscrewing the fuel pump cover. Skillfully, you can do something different.

Hatch manufacturing options:
1.Using Dremel from Malish: Hatch for access to the fuel pump from the passenger compartment. (P) (message # 3056365)
2. Similar but with a different mounting option from petrakov: Hatch for access to the fuel pump from the passenger compartment. (message # 5001144)
3. Similar but with a different mounting option from Feeler: Hatch for access to the fuel pump from the passenger compartment. (message # 5368058)
4.Using a chisel from evser A hatch for access to the fuel pump from the passenger compartment. (message # 5521722)
5.Using a hacksaw blade from martinok A hatch for access to the fuel pump from the passenger compartment. (P) (message # 14003088)

Important: added 05/06/2012
Before cutting the hatch, remove the rubber plug and make sure that the fuel pump is there. Models Ford focus ZX4 / ZX5 the fuel pump is not under the rubber plug, but here: Ford Focus ZX4 / ZX5 - American focus since 2005. (P) (message # 8677564)
If you do not check, you can cut out the hatch and not find the gas pump there, examples:
1. A hatch for access to the fuel pump from the passenger compartment. (P) (message # 4486373)
2. A hatch for access to the fuel pump from the passenger compartment. (P) (message # 12204198)

How not to do, in no case do I want to offend my teammates:
1. "cut with scissors for metal and cut off the hose - with a red fitting which - now I don't know what to do" (from sdik) Hatch for access to the fuel pump from the passenger compartment. (message # 3349038)

2. "In no case do not use a screwdriver - when I did this process I punctured the fuel supply hose, this is a specific popandos." (From Efimov Dmitry)
A hatch for access to the fuel pump from the passenger compartment. (message # 3502471)

3. "Accidentally drilled a hole in the tank, what can I fix?" (from AnTe4ka)
A hatch for access to the fuel pump from the passenger compartment. (P) (message # 12962322)

Ways to unscrew the fuel pump cover:
1.Using a cut timing belt. Lashes out with overlap strap and stretches. Super! Not a hint of the possibility of injury. Attached is a photo of the timing belt on the cover. In the photo there is a way to unscrew the lid, so that it can be twisted in the other direction.

2. Added on 07.10.2012 With the help special tool, eg: LICOTA ATA-0560 fuel pump cover remover The price is about 1000 rubles.

Additional photos: A hatch for access to the fuel pump from the passenger compartment. (P) (message # 13191935)

3. Using a special key (hand made): A hatch for access to the fuel pump from the passenger compartment. (message # 3504613) (thanks teammate Vasily.N)
3.1 Option homemade key from Terminator4 (with dimensions) A hatch for access to the fuel pump from the passenger compartment. (P) (message # 13810798)
3.2 Option homemade key from Maikl-822 A hatch for access to the fuel pump from the passenger compartment. (P) (message # 12345166)
3.3 Option homemade key from 72dimedrol A hatch for access to the fuel pump from the passenger compartment. (P) (message # 12761397)
4. We take a block, a screwdriver, a file, etc. we rest with one end on the edge of the lid, and knock on the other end. Important: in this way you have to be very careful, because you can break the lid or break off the ribs, then there will be nothing to unscrew.
Added on 08/01/2013 Note: before tightening the fuel pump cover, lubricate the thread with grease, so that next time it would be easier to unscrew.

Detailed instructions on how to pull out the fuel pump:
1. A hatch for access to the fuel pump from the passenger compartment. (P) (message # 7695129) Thank you teammate ponomigor

Any motorist knows where the fuel pump is. This small component is the real heart of any car's fuel system. Its uninterrupted operation is important not only for increasing the working life of the car, but also for the safety of the driver and passengers. For timely diagnosis, knowledge of the structure of the gas pump will be required. All manipulations can be done by hand.

Fuel pump classification and function

To understand and eliminate possible problems with the gas pump, it is important to know its design. This component of the propulsion system supplies fuel to the motor. Fuel pump malfunctions cause malfunctions in the rest of the car's systems. Before the invention of this "worker", the fuel moved along a special hose thanks to the forces of gravity.

To regulate the amount of fuel, a fuel pump reducer is required. Therefore, checking the pressure level is necessary in order for the repair to be more effective. Reducers are electrical and mechanical, this division determines the procedure for diagnostics and repair manipulations.

The principle of operation of an electric gearbox is to push fuel at a certain speed. To check the functioning, an electronic system is used that monitors the air-fuel ratio, the content level exhaust gases... The electric fuel pump is started from the electric motor when the ignition switch is turned on.

IMPORTANT: old car models had a given fuel speed.

Gasoline pumps having mechanical device, installed in all types carburetor cars... In this case, the fuel supply pressure has low level... The pump is mounted externally, while the electric models are mounted inside the machine.

It is worth noting that both types of fuel pumps are installed on some cars. The function of one is to work with small volumes and high pressure, the domain of the second is to work with large volumes and low pressure.

Diagnostics

The first alarm that characterizes a disruption in the operation of the fuel pump is an intermittent movement vehicle... The appearance of this sign means that DIY repair is required.

Prolonged running of the engine also indicates certain malfunctions in the gas pump. In one "fine" moment, the engine may not start at all. The root cause of this is the pressure drop in the system, therefore, first of all, they are checked for leaks.

You can check the fuel pump device with a special indicator, which can be purchased at an auto parts store. The installation of this device is done by hand according to the attached instructions. With the engine turned off, the pressure in the fuel network is diagnosed. A decrease in the pressure level in 5-7 minutes to 1.6 atmospheres indicates a malfunction in fuel regulator or a nozzle. Identifying the "culprit" is a stage that precedes the repair itself.

Checking with a pressure gauge

To diagnose the operation of the fuel pump and check the pressure readings, you can use a pressure gauge. The device must be connected to the fuel rail and brought to windshieldusing the edge of the car hood. Turning on the ignition is a start for fixing the readings with a pressure gauge. The pressure fluctuation rate is from 300 to 380 kPa. After that, the car needs to be accelerated to 3rd gear and the instrument readings must be checked again. If the pressure level has not changed, then there is no cause for concern, and some other component of the machine needs repair.

If the pressure level in the fuel system changes, consult a professional.

If the car starts to stall on the move, the reason most often lies in the electrics. You can confirm or deny these concerns by testing the fuel pump relay. Diagnostics can be done by hand by connecting a control light to the gas pump. When the ignition is turned on, this lamp should light up for 2-3 seconds. In the absence of this signal, repair of the car's electrical system is required.

Fuel leakage is eliminated simply by replacing gaskets, valves, diaphragms and filters. You just need to know the structure of the fuel circuit, the replacement itself does not cause difficulties even for amateurs. It is better to entrust the repair of electricians to the specialists of a car dealership or a large service center.

Repair work

Older cars have carburetors and a mechanical fuel system. Such a device is less likely to break down compared to injection-type cars. The latter is mounted electrical system and a modern fuel pump. Electronic system controls the level and rate of fuel delivery. The functions of the fuel pump are to transport fuel from the tank to the place where the mixture is formed, as well as to create the required pressure level.

It is easier to carry out any repairs with your own hands if the sequence of individual operations is known. First you need to check the device for the absence inside fuel tank factory debris (small metal particles), which can enter the pump and disable it.

All renovation workconcerning the functioning of gas pumps can be divided into several areas:

1) if foreign particles are found in the fuel tank, it must be flushed. If it is impossible to wash all the garbage, the tank must be replaced;

2) oil leakage is a signal to check the junction of the cylinder block and the fuel pump. Insulation gaskets are also checked;

3) to remove the pump, it is required to disconnect the supply and supply gas lines, then unscrew the fastening nuts and remove the washers on the springs. After that, it is possible to dismantle the fuel pump itself;

4) a malfunction in the pump may cause a deformed diaphragm. In this case, it must be reinforced with plastic wrap;

5) cars with high mileage may have diaphragm springs weakened from the load. Repair - stretching the spring back into place.

This article answers the car owner's question: is it possible dIY repair fuel pump in an injection-type car? It can not only be done by hand, but it does not represent anything complicated, which is confirmed by the video:

Everyone believes that the main part of any car is the engine. One can argue with this, since the engine is rather driving force cars, and the heart, without a doubt, will be a gas pump. As soon as it breaks down, breaks down, and the whole car will look like a pile of iron. After all, we must admit that you can come to the nearest car service even with an inoperative cylinder, or if a radiator is punctured in the car.

If the driver has even a little idea how to fix it. But if the fuel pump does not work - write it all. Here only a tow truck or towing by another car will help out. True, popular rumor says that there are such specialists who managed to connect the washer reservoir to the fuel system, poured fuel into it, and so slowly drove to the nearest workshop. But it is rather from the realm of fantasy and repeating such manipulations is extremely dangerous for the life of the driver and for the car itself. So, let's talk about when a gas pump needs to be replaced.

What is the fuel pump for?

This unit is designed to provide an uninterrupted supply of fuel to the engine while it is running. In most cars, it is located inside the fuel tank. Because of this design features accessing it can be a little difficult. As you can see in the video, the entire fuel unit, in addition to the pump itself, includes: a fuel sensor with a float and a fuel pump grid (otherwise it is also called a coarse fuel filter). Two fuel lines are connected directly to the fuel pump itself:

• Fuel supply line. It supplies power to a rail with nozzles (through a fine fuel filter);
• Return fuel line. Through it, with the help of a pressure regulator, the fuel is returned to the tank. The Sami creates a constant circulation in the fuel system of the engine.

The main characteristic of a gasoline pump lies in the pressure that it creates. The pressure generated will depend on the engine displacement. The larger the engine displacement, the higher the performance of the fuel pump should be.

Basic operations for replacing the fuel pump

The main thing to consider when you start this work is to remove the negative wire from the battery terminal. This rule must be followed whenever working on the fuel system of the machine. It would also be useful to work if the tank on the car is completely empty. Moreover, when you remove the fuel pump, you can clean the bottom of the gas tank from the dirt accumulated there.

Next, what needs to be done is to relieve the pressure in the fuel lines so that replacing the gas pump becomes safe for you. Otherwise, you can get a jet of gasoline in your face or car interior. How do you do this, you ask? I can assure you that such a procedure is not very complicated.

There are two ways to relieve pressure in the fuel system.

• The first option is the simplest, but it is time consuming. It is enough for your car to stand in a damped state for several hours and the pressure in the system will drop by itself. In this case, when you start to disconnect the fuel lines, you should not be afraid that a stream of gasoline will spray from the fuel hose.
• The second option is also not difficult. You need to find a block in the cabin of your car, with the help of which the car is diagnosed. There should be three fuses, and it is one of them that is responsible for the operation of the gas pump. This fuse must be removed, and then the car must be started. Let it run for a while until the engine stalls. Then put the fuse back in place and start removing the fuel pump.

As you can see from the video, almost all Peugeot brands have a gas pump installed under the rear seat. From above, for protection, it is closed with a special cover. Just before dismantling, do not forget to remove the negative terminal from the battery!

As shown in the video, you first need to disconnect the supply and return fuel lines from the fuel pump. Wring out the clamps and take them to the sides. Then gently pull out the electrical connector. Then it is necessary to remove (unscrew) the pressure ring. It is necessary to twist it counterclockwise and slightly pressing on it. After removing the ring, remove the gasket as well. Having done all these operations, you can remove the gas pump itself. Turn it and pull it up. A special puller will help you with this procedure. You can buy it in the store or make it yourself.

Installation of the fuel pump is carried out in the reverse order. Remember to replace the old rubber gasket with a new gasket. After installing a new gasket, tighten the pressure ring with a puller until the marks are aligned. Then install the fuel lines and terminal.

How to replace a grid in a gasoline pump

This procedure is very typical for almost all car models and may differ only in minor details. The differences can only relate to the design features of the car, but by general principle replacing the fuel pump grid is almost the same everywhere. After all, the main goal is one thing - it is necessary to ensure that the course of your car was smooth and without jerks. You can see how to replace the mesh in the gas pump in this article.

First, it should be noted that when you visually inspect the fuel pump mesh, you may not immediately see obvious traces of contamination. But in any case, this part will need to be changed, even if at first glance it seems clean and free from defects. Moreover, this part is so low in cost that the purchase of a mesh for a gas pump will not bring serious damage to your wallet. And even if the reason why your car suddenly lost a smooth ride is in no way connected with this part, then after a while it will still have to be changed. So why not do it right away? So do not neglect this process, especially since replacing the gas pump grid will not take you much time, because you have already removed the pump itself, which means half the job is done. And you can do it on your own. As the video shows, it is enough to act clearly and accurately for this.

What problems can you expect when replacing a gas pump?

The main problem that a motorist can expect, who decides to replace the gas pump on his own, is that the result, contrary to what was expected, may be negative. Fuel supply is still interrupted or not at all. To prevent this from happening - before proceeding with the above work, make sure that the problem was in the gas pump, and not in something else. It must be remembered that if your car has low pressure and the fuel comes intermittently, then the fine filter may simply clog, or the fuel lines are bent, or the nozzles located on the fuel rail are clogged. Even if you didn't replace in time air filter or you have coked up throttlethen any of these faults will be similar to a fuel pump fault. But as the video shows the most frequent problem, which occurs in this case - insufficient contacts in the electrical block, which is installed on the gas pump, or the fuse has burnt out.

Replacing the fuel pump mesh video

Good luck on the road!

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Are you familiar with such problems when the car cannot move from a place or jerks are observed when engaging first gear? It is clear that there are many reasons for this, it is possible that to eliminate this, it will be necessary to replace the gas pump or the coarse filter mesh. Therefore, you should understand in more detail and pay attention to the pump itself.

Fuel pump for old car models russian production easier to replace than to repair, and indeed. Of course, today on the market you can find kits of spare parts for this unit, which is so important for the car, but this is just a waste of money, as most experts in the automotive industry believe.

The only parts worth changing are the valves and cuffs. This is due to the fact that over time the rubber loses its elasticity, dries up and there is a possibility that it will be.

Reasons for replacing the fuel pump

A unit such as a gasoline pump can be at the most inopportune time. Unfortunately, in most cases the quality of the fuel is to blame.

Some drivers use it without thinking about the sad consequences for their "iron horse". This is due to the fact that when using low quality fuel, air enters the intake, therefore the pump operates on high revs and is not cooled by fuel.

If you are a driver in this category, then you should not be surprised that the gas pump constantly needs to be replaced. Other causes of pump malfunctions include roller wear, impeller malfunction, and others.

Why do you need a car fault diagnosis

Many of the car enthusiasts know that it is located along with a filter and an indicator that controls the fuel level. The fuel pump is installed in the tank of the car, you just need to remove or lower the rear seat down, then find the hatch, screw all its fasteners and you will see the pump body with the necessary parts to help it function.

Replacing the fuel pump takes place only after a diagnostic study. It should not be made according to the mileage and in connection with your "feelings", you need diagnostics, since at first glance it is difficult to determine whether the pump is to blame for the car malfunction, or the reason is in something else.

So, you carried out the diagnostics and she still pointed to the fuel pump, then you need to replace the fuel pump filter and the unit itself. If a malfunction is detected only in the mesh, then it is not recommended to change the pump.

Signs of a faulty fuel pump

Of course, diagnostics are certainly important, but at the beginning of troubleshooting, you should pay attention to some manifestations that are observed due to a malfunctioning fuel pump:

• the car engine cannot start or is malfunctioning;
• there are extraneous sounds;
• during movement, the engine is disrupted;
• decreases.

New fuel pump

If you are in doubt about which fuel pump will suit your vehicle, then it is better to purchase the same one that you have, or choose it from another manufacturer, but in this case, you should pay attention to the fasteners. The point is that they may not converge as a result of replacement.

In addition, the discharge pipe of this unit is found in a straight or curved form. The new fuel pump must have the same connection as the old one. Otherwise, the rubber hose will not be able to slide on it due to the fact that other parts of the machine interfere with it.

Tools required to replace the gas pump in the car

The toolkit can be divided into several categories: for the replacement process itself, as an aid, additional materials.

For the replacement process, you need to have with you:

• keys of different sizes;
• flat and cross-head screwdrivers;
• pliers;
• sliding tongs.

Supporting tools:

• technical aerosol for universal use (vadashka, or WD-40) or other similar liquid;
• pump for pumping wheels;
• rags.

Additional (spare) materials:

• mesh and pump;
• fuel supply hose. It will come in handy when the replacement of the fuel pump has not been made for a long time;
• rubber o-ring.

How to replace a gas pump in a car

The first step is to wear gloves. Keep in mind that the vehicle's fuel pump is a complete assembly with a fuel flow indicator and is located in the tank at the top of the vehicle.

1. Remove the hatch cover located in the trunk compartment of the car.

It is recommended to perform the steps to replace the fuel pump in a well ventilated area. The vehicle must be away from heating devices and sources of fire.

1. Residual pressure must be removed from the power supply system.

In order to do this, the negative cable should be removed from the battery, but the machine must be on level ground.

1. Lower or remove the back rear seat and remove the floor cover.

1. Find the wiring connection area on the top of the equipment and disconnect them.

1. Unscrew the plastic ring in the opening of the fuel tank using pliers.

So, the steps taken above have been completed, now you have the last thing to do - to pull out the fuel pump and replace it with a new unit.

1. After the remaining gasoline has drained, you can remove the pump from and then remove the gasket.

It is necessary to get the assembly in such a way so as not to injure the float located on the sensor. If damage to the float cannot be avoided or there are signs of fuel entering it, then it should be replaced with a new one. When this is not done, the sensor readings are not shown correctly.

1. Now you need to disconnect the lower glass, it snaps off.

Usually a large layer of dirt accumulates in it. It can be removed with a rag. If it is not possible to pull the glass out through the pump holes, since it falls into the gas tank, then it can be removed by manually dismantling the seal.

1. The next step is to remove the filter (mesh).

1. Using pliers, remove the locking pin from the guide.

1. Disconnect the hose from the fuel pump.

In this case, it should be remembered that the rubber may lose its elasticity if the replacement was made a long time ago, therefore it is recommended to change the hose. To do this, cut it off the union in the upper area.

1. Unscrew the fuel consumption indicator and remove it from the fuel pump housing, then remove the terminal.

The whole process of assembling a new fuel pump is in the reverse order of manipulations.

After replacing the fuel pump, you should connect and start it for a short period of time, then check if fuel flows from all connections, if everything is fine, then you can close the cover and put the back seat in place.

Attention! Gasoline in the gas tank is explosive. Therefore, auto mechanics strongly advise to be very careful during work on replacing the fuel pump. By following this rule, you will protect yourself from trouble. Good luck!