Replacing the fuel filter for Toyota Corolla 120 and 150 body

The fuel pump and filter are one of the main elements of the fuel circuit. They are entrusted with the task of uninterrupted supply of fuel to the main line. Their failure can lead to complete immobilization of the vehicle. Therefore, the fuel filter and pump must be replaced at the first symptoms of their breakdown.

The original Toyota Corolla 120 fuel pump has article number 2322128030. Its price is more than 2,500 rubles. There are analogues from third-party manufacturers. Their best options are shown in the table below.

Table - Analogues of the fuel pump for the Corolla 120 car

The original production fuel filter has article numbers 77024-02040 and 77024-12050. Its cost ranges from 4,000 to 5,000 rubles. It is also possible to purchase exclusively a coarse filter with catalog number 232170D090. The price in this case will be about 200 rubles. Good analogues of the original Corolla 120 product can be found in the table below.

Table - Analogues of the fuel filter for Corolla 120

Frequency of replacing the fuel filter

The automaker produces the Corolla 120, which is equipped with fuel filters designed for the entire service life of the car. In domestic realities, the quality of gasoline is extremely low, which causes the filter to clog and the fuel pump to fail. Therefore, official dealers recommend replacing the fuel module every 80 thousand km.

In most cases, there are no obvious symptoms of a clogged fuel filter. This is due to the fact that throughput decreases gradually throughout the entire life of the vehicle. In this case, a clogged filter element can have a negative impact on the power plant and its associated components.

Step-by-step steps for removing and replacing the filter element

1. The Toyota Corolla 120 fuel filter is accessible from under the rear seat on the left side of the cabin. We remove the underbody trim under the rear seat on the left and gain access to the gas tank cavity cover.

Photo 1. Gas tank cavity hatch under the seat on the left.

Photo 2. Open cavity above the gas tank. The cover of the Toyota Corolla fuel block with gas lines and an electrical connector is visible.

Photo 3 Disconnecting the direct gasoline supply and return hoses

Photo 4. Removed pump block. Below you can see the L-shaped mesh of the fuel intake filter.

Photo 5. Sawn housing of an old fine fuel filter. Traces of severe contamination are visible.

If the replacement is done correctly and the rubber O-rings are not forgotten, the engine will start without problems and will work better than before.

In other Toyota Corolla models, for example with the 150 body of 2008, instead of a metal fuel block cap with screws, a large plastic ring with a rubber seal is screwed onto the tank neck. To remove the block, you need to turn the ring counterclockwise, loosening the seal, and then remove the entire pump block.

Photo 6. Another design of the pump block cover for models with access from the right side under the rear seat.

You can unscrew the ring lid by carefully hitting the ribs of the lid with a hammer through the wooden inserts. Upon further disassembly, something differs from the design of the Toyota Corolla with a 120 body until 2008. For example, the intake mesh looks a little different; a fine filter may be a separate part, but the rest is almost the same.

Required Tools

In order to successfully replace the fuel filter on your Corolla 120, you will need the tools from the table below.

Table - Tools required to replace the fuel filter

Step-by-step instructions for replacing the filter element and pump

Changing gas filters is important to maintain engine power, avoid problems when starting it, and to extend the life of pistons, piston rings, connecting rods and pins.

Replacing the gas filter in a Toyota Corolla in the 120 body is carried out independently, if the owner of the car has an understanding of working with tools of medium complexity.

Spare parts and tools

Before you change the fuel filter on your Corolla, you need to prepare. To do this, you should prepare the necessary tools and materials in advance. We will need:

• coarse gas filter;
• fine fuel filter;
• narrow slotted screwdriver for fasteners;
• Phillips head screwdriver.
• 8 wrench,
• hairdryer

Also prepare a large amount of rags and a container of water.

Execution of work

The Corolla fuel filter is located in the tank and is part of the fuel pump module, consisting of:

• fuel pump;
• primary gas filter - a component that cleans fuel from excess moisture and various impurities;
• final filter - a component that carefully filters fuel from smaller particles;
• float indicating the amount of fuel.

Before starting work, you should drain the fuel from the system so as not to flood the car interior with it later. To do this, you need to pull the fuse out of the fuse box and leave the engine idling until the fuel pump and line are empty and the engine stalls. Next, open the gas tank cap to release the pressure. It is also recommended to replace filters on the Toyota Corolla e120 with a small amount of fuel remaining in the tank.

First you need to disconnect the negative terminal of the battery. Then remove the rear seat, secured with two latches and a guide. This must be done with sudden movements. Under the seat there is a gas tank cavity cover with wires connected to it. The cover is secured with sealant and lifted using a flat-head screwdriver. This frees up the entrance to the small space above the tank where the fuel system unit is installed. To prevent dirt from getting into the tank, you need to clean with a vacuum cleaner under the place where the seat was, and then above the tank itself.

Next, unscrew the 8 bolts and remove the fuel pump. This should be done at an angle due to the float, which is attached to the wire at a sufficient distance.

Now you can assess the degree of contamination of the tank and coarse mesh. The degree of contamination of the fine gas filter cannot be seen.

The next task is to disassemble the fuel module. To do this, remove the float by bending the plastic latch. Then the mesh is removed and the fine filter, which is secured with a rubber gasket, is disconnected.

When disassembling an old gas filter, it is important not to lose the rubber bands, in case new ones were not purchased. The most difficult thing to remove is the rubber band from the top of the gas tank.

We insert the rubber bands into the new filter element, similar to the location in the old one, and complete the structure. It is problematic to replace the coarse filter and the retaining retaining ring.

Now we return all the parts to their place in the sequence in which they were removed. We tighten the nuts again and connect the tubes. But before you put the seat back in place, it’s worth checking how the system works. To do this, insert the key into the ignition and turn it to the “ON” position, but without starting the car. The operation of the fuel pump should be audible. The sound should be familiar. The metal tank cap is installed using the same sealant, after which the rear seat can be replaced.

Possible troubles and difficulties

After replacing and placing the fuel pump in the fuel tank, the car may not start the first time. The reason for this may be poor sealing of the fuel pipes, as a result of which the fuel pump does not create sufficient pressure in the line.

When disconnecting the hoses from the body, you should be careful. The system retains pressure and fuel may spray into the passenger compartment or eyes. It is worth stocking up on enough rags for cleaning.

You should also be careful about fire and sparks near the work site, because... After removing the cap, gasoline vapors from the tank quickly fill the interior.

Procedure

The procedure should be performed in stages. First, remove the negative terminal from the battery to de-energize the fuel system. Then provide access to the part: to do this, you need to remove the bottom upholstery under the rear left seat in the cabin, this allows you to open the lid of the fuel tank cavity.

Removing the fuel pump cover

The cover must be removed. Since it is fixed to the sealant, you will need to pry it off with a screwdriver. Before you start replacing the filter, you will need to vacuum the areas under the bottom upholstery and the container itself.

After this, you need to open the connector that powers the fuel pump. In order to relieve pressure in the fuel system, you need to try to start the engine several times. If this is not done, when you try to disconnect the hoses, gasoline under pressure will spray out. Open the fuel tank. Disconnect the hoses for direct and reverse fuel supply. To pull out the return line, you will need to use a screwdriver and use it to remove the lock; It is easy to recognize, it is yellow in color. Then you need to unscrew the 8 screws using a Phillips screwdriver and pull out the pump unit.

Remove the terminal and disconnect the hoses

The float is disconnected, for which you need to move the latch, after which the upper part is detached: to do this, you need to press the clips, which are placed in a circle. The fuel pump needs to be pulled out, then inserted into the new filter housing. The mesh needs to be washed and blown with air to remove dirt, then reassemble the structure in the reverse order, not forgetting to install new seals.

Old and new filters

These instructions are suitable for replacing the filter on a Toyota Corolla in the 120 body. If we talk about the modification in the 150 body, then instead of a metal gas tank cap, you need to put a plastic ring on the neck, which is equipped with a rubber seal. To remove the block, you need to twist the ring counterclockwise, and after loosening the rubber tab, remove the pump block. To unscrew the part, you can use a hammer; they need to strike carefully through the wooden attachments. The filter for a car in the 150 body is slightly different in design: it has a different intake mesh, and the fine cleaning device comes separately.

Fire safety during work

When working to replace the filter under the underbody from the passenger compartment, it is very important to follow fire safety rules. Within a few seconds after removing the gas tank cap, gasoline vapors penetrate into the cabin. Their explosiveness when mixed with air is mentioned everywhere. Therefore, in no case should there be sources of sparking and, especially, open fire!

When the pump unit is removed and work is being done somewhere on the table, the neck of the gas tank should be temporarily covered with a clean film or thick rag. At the same time, you should not close the car doors - the interior will be ventilated through them. It is also preferable to keep the vehicle outdoors while working.

It is better to replace the Toyota Corolla filter in a timely manner, according to the recommendations. You should not wait until the car breaks down - after all, all its systems are functionally connected to one another. If breakdowns begin because of this, then you will have to spend money not only on replacing the filter, but on expensive diagnostics and repairs.

Conclusion

Changing the fuel filter on a Toyota Corolla E120 is not so easy, since the product is located in the fuel tank. Not every car enthusiast is able to change this spare part on their own, and therefore many turn to a car service center.

The fuel filter for Toyota Corolla 120/130 (ninth generation) and 140/150 (tenth generation) differ from each other in design and size. Also within each generation there are differences depending on the type of engine.

On all cars of both generations with gasoline engines, in addition to the main fuel filter (fine filter), there is also a mesh (coarse filter, pump filter). It serves for the primary screening of large particles of debris that may be in the fuel tank.

The main manufacturer of original fuel filters for Corolla 150 and 120 is Denso.