How to drain gasoline from a Lada Largus tank

From time to time, car owners have to drain gasoline from the tank. Sometimes you need a little fuel for a camper stove or to refuel another car. In other cases, it is necessary to drain all the gasoline to repair the fuel system or remove water or low-quality fuel from the tank. On older cars this operation could be done relatively easily. Now we have to face two problems:

The long winding channel leading to the tank does not allow the hose to be pushed into it.
A mesh installed at the filler neck prevents gasoline from draining.

Therefore, it is better to know several methods and apply them depending on the design of the gas tank and the fuel supply system. Below we will tell you how to drain gasoline from cars: VAZ 2109, 2110, 2114, 2115, Grants, Largus, Toyota, Niva, Priora, Patriot, Ford, Chevrolet.

Method 1. How to drain gasoline using a hose

The classic method that our grandfathers used. To drain the fuel you need to prepare two things:

A hose (tube), the length of which depends on the design of the tank.
Clean container for gasoline.

In the simplest case, the fuel pumping operation goes like this:

Lower the hose (tube) into the tank so that it is immersed in gasoline.
Cover the free end with your lips and draw in a strong breath.
Direct the hose into the prepared container.

All that remains is to wait for all the fuel to flow out.

To drain only part of the fuel, it is enough to lift the hose above the neck so that gasoline stops flowing out.

Gasoline and octane boosters are harmful to health. Therefore, it is necessary to avoid their entry of fuel and its vapors into the body.

To prevent gasoline from getting onto the mucous membranes or into the stomach, special hoses are used to pump fuel. They are equipped with a bulb that must be squeezed before immersing the tube in the fuel and then released. If the design is not equipped with a check valve, vacuum in the line is created in a simple way:

squeeze the pear;
lower the hose into the gas tank;
plug the hose outlet with your finger;
release the rubber bulb;
remove your finger.

The bulb can be replaced with an improvised piston . To do this, you will need a rope that runs freely inside the tube. It is better that it is made of soft natural material and not nylon. At the end of the rope you need to tie several knots, and then:

Thread the rope and pull lightly so that the piston from the knots enters the hose.
Insert the hose into the gas tank.
Smoothly pull out the rope.
Lower the hose (tube) into the prepared fuel container.
remove your finger.

The moving “piston” creates a vacuum that causes gasoline to flow from the tank.

However, all tricks with a hose are only relevant for old cars. The gas tank of modern cars (Grants, Largus, Toyota, Niva, Priora, Patriot, Ford, Chevrolet) is located far from the filler neck. In this case, you need to use other methods.

How to drain gasoline from a Lada Priora

Unlike “classics”, on modern cars it is no longer possible to drain fuel through the neck of the fuel tank, since there are protections. It is simply not possible to stretch the hose inside the tank and “suck out” the fuel. Then how to drain gasoline? Other methods are used for this.

For this type of car there are two ways to solve the problem. The first option involves wedging into the fuel line in the area of the fuel filter. The second is dismantling the fuel pump. Let's look at each method step by step.

Drain gasoline through the fuel filter:

Finding the location of the fuel cell. Usually the gas filter is located under the rear right wheel. But the location may vary depending on the year or model.
Snap off the filter groove on the nozzle side.
We put on a hose, which we immerse in the container.
The fuel pump needs to be made to work. If you turn on the ignition, it will only work for a few seconds. To fool the electronics, you need to close relay K12. To do this, car enthusiasts use a jumper in the form of a wire.

The second method involves dismantling the fuel pump. There is a structural element located under the rear sofa that needs to be removed. Let's consider the sequence of operations for draining gasoline through the fuel pump:

As already mentioned, we remove the rear sofa. There is a plug underneath that hides the fuel pump.
Remove the protective cover and gain full access.
Unsnap the power supply terminals. You should first turn off the power to the fuel pump. This can be done by removing the corresponding fuse in the mounting block or removing the negative terminal from the battery.
Relieve the fuel system pressure. After this, unscrew the fuel supply pipes.
Remove the fixing circle.
Now you can remove the fuel pump.
We gain access to the fuel tank. Next, we carry out the operation with the hose, as in the case of the “classic”.

Method 2. Drain gasoline through the fuel line and the plug at the bottom of the gas tank

If the fuel pump is located not in the tank itself, but near the engine, you can try to drain the fuel through the fuel line. Procedure:

Unscrew the clamp and disconnect the hose going from the tank to the fuel pump.
Place the hose into the fuel container.

Fuel will leak from the gas tank. The main thing is that the end of the fuel line, as well as the fuel container, is located below the gasoline level.

Which gasoline is better - 92 or 95? What is octane number?

Some cars have gas tanks with drain plugs. If you are the owner of just such a car model, you need to use an overpass or inspection hole to drain the fuel. This is done simply:

Place a container under the drain plug in the gas tank.
Unscrew the plug.
Drain the fuel (all or part of it).
Tighten the plug.

However, plugs at the bottom of the tank are not very common. In this case, the fuel pump will help drain the gasoline. The method is suitable for old modern cars.

How to drain gasoline from a tank

The entire algorithm consists of two simple points:

disconnect the fuel line from the ramp and direct the fuel to the required container
run the fuel pump bypassing the engine control unit (ECU)

There are no particular problems with disconnecting the fuel line - press the lock of the quick-release fitting and disconnect the line from the ramp

If you still have questions, then on the page Flushing the injector with your own hands you can see everything in detail.

Attention! Observe safety precautions and fire safety!

How to turn on the fuel pump

Now all that's left to do is to start the fuel pump bypassing the ECU.

This can be done in two ways.

In the first case, we will be helped by a lonely dangling electrical connector, which raises many questions among firemen.

What is this chip under the hood near the fuse box? I have an unconnected connector sticking out, what is it? Where should I connect this connector?

Well, in general, this lonely connector became the most mysterious in the car and legends were made about it even more than about the octane corrector feature

In fact, this is a very useful thing in capable hands. This connector is connected directly to the fuel pump. And even after the fuel pump relay. It is this fact that makes our life much easier.

The bottom line is that we only need to have one piece of wire about 20 cm long to use it to connect our connector to the positive terminal of the battery and our pump will start working immediately

And it will work until we turn it off.

This is how easy it is to turn on the fuel pump.

Well, what should you do if your car doesn’t have such a miracle connector as the Lacetti?

It's OK. The task will become a little more difficult.

The first step is to remove the cover from the fuse box and look at the location of the elements on it.

You need to find the location of the fuel pump relay. The inscription will look like this - FUEL PUMP RELAY

We now find it on the fuse and relay mounting block. Here it is

Now you need to remove the relay and replace it with a jumper between pins 30 and 87. The contacts are signed on the relay itself, so no questions will arise.

Attention! As soon as you close the contacts, the fuel pump will immediately turn on! You don't need to turn on the ignition for this! Therefore, place a gasoline container under the fuel line in advance!

After draining the gasoline, remove the jumper and install the relay in place.

Attention! Do not turn on the pump when the tank is empty! It may fail!

That's the whole simple process.

Other ways to drain gasoline from a vehicle

On some cars of the Lada family, where the fuel tank is located under the luggage compartment, there is a fuel drain bolt. This happened on the first generations of Priora and Granta. It served precisely so that, if necessary, fuel could be drained from the fuel tank. The procedure is quite simple: we place the container and unscrew the bolt with a 17 key. But later this mechanism was removed.

Another option is to drain through the fuel rail. First, the fuel supply hose is unscrewed and extended to drain the combustible mixture. Next, as in the case of the fuel filter, the relay closes. Fuel is being drained. In this option, it is recommended to use a longer tube so that gasoline does not get on the engine and electrical elements located in the engine compartment.

How to drain gasoline directly from a gas tank?

The easiest and fastest way to drain fuel from cars that have a filter mesh installed on the gas tank is to drain it through a special drain hole.

As a rule, most configurations of any car have a certain neck at the bottom of the gas tank, which is designed to drain fuel. So you only need to find it, open it and place a canister or bottle where the fuel will actually be removed. This method, as you understand, is quite simple and, most importantly, does not require any expense or any intervention in the fuel system of the vehicle.

How to drain fuel from a gas tank: subtleties of the process

How to properly drain fuel from a gas tank

No special skills are required to fill the gas tank with fuel. However, sometimes circumstances arise in which it is necessary to drain the product, and that’s when problems begin, especially if the maneuver needs to be done quickly. There are different ways to empty the tank. Every car enthusiast should be aware of this manipulation.

What could be the reason for draining gasoline from the tank?

First of all, an overfilled gas tank. In this case, the motorist has to drain excess fuel into cans. The next situation concerns repair work. Finally, there are times on the highways when a vehicle stalls and a fellow driver needs assistance. Then the fuel from one car is sent to the gas tank of another.

Complete emptying of the gas tank is necessary:

When replacing the fuel filter or pump;
For flushing the gas tank. Typically, such a manipulation needs to be done if, after refueling, it is discovered that the fuel is of poor quality. If you leave everything as is, the tank will become clogged;
When replacing the tank itself with a new one if the old one is damaged or worn out.

A prerequisite for draining gasoline is that it must be done exclusively in the open air. When draining in closed areas, you can get sick, as toxic fumes are released.

Features of draining fuel from VAZ cars

There are a number of methods for draining gasoline. So, you can use a hose equipped with a bulb pump. The procedure itself takes little time, and gasoline is removed from the tank without harming the health of the motorist. However, one point must be taken into account: this option is suitable only if there is no protective mesh on the neck of the tank.

Straight from the tank

Almost all cars have a service hole in the tank for servicing the fuel filter. It can be quite difficult to get close to it, but in general, it is still possible. If this is possible in your car, then remove the plug from the tank. It is usually secured with small bolts or studs. Remove it along with the tubes and filter. You have direct access to the tank.

All that remains is to download the desired amount of fuel. In this case, you can use the old-fashioned method: suck it through a hose. Or purchase a special bulb for pumping out fuel.

Conclusion

. On many modern cars, tanks are made of polymer materials that are not prone to corrosion; a mesh in the neck protects them from external dirt. Therefore, many car enthusiasts are interested in how to drain gasoline from the tank of a foreign car. After all, the manufacturer did not provide a convenient method for draining. But don’t despair, there are several ways to remove fuel from the tank.