DIY a132l automatic transmission repair

In the early eighties of the last century, Toyota, together with Aisin specialists, developed a three-speed automatic A130 gearbox, which was intended for installation on front-wheel drive compact cars. In most cases, this automatic transmission was installed on Toyota Corollas, which were intended for the North American market. In total, this modification of the three-speed automatic transmission was on the conveyor from 1983 to 2001. It should be noted that in the last years of its presence on the assembly line, this transmission was used mainly in South America, where it was installed under a license for local cars.

The A130's three-speed automatic transmission features an excellent safety record. This is largely due to the simplicity of the design. The gearbox did not have any automatic systems that had a low effect on reliability indicators. The simple design was improved and modified as it was on the conveyor. In the latest modifications, the automatic transmission had two planetary gears, and the lubrication was carried out forcibly without the use of solenoids. Such designs made it possible to simplify the maintenance and repair of the gearbox.

It must be said that in the domestic market, cars equipped with this modification of gearboxes are very rare. That is why Automatic transmission A130 not often found in renovations. At the same time, it should be noted that there is no difficulty in repairing, which allows all the work to be done consistently. As transmissions are used, gasket problems may occur and are not difficult to replace. With long-term operation on runs of more than 300,000 kilometers, there may be problems with the weakening of the brake band and special springs. This repair is relatively difficult, but the parts themselves are affordable.

An automatic transmission is an expensive component. There is no point in delaying the repair if it starts to work incorrectly. In a car service, such repairs are expensive. You have to pay for the work of specialists and for the details. Having studied the market and the price range of services in this segment, motorists come to the conclusion that repairing automatic transmissions with their own hands is not such a pointless undertaking. The prices of the workshop masters cannot be called modest, and the professionalism does not always correspond to the price. And, after some thought, motorists can decide to fix the problem on their own.

Wherever you decide to repair the gearbox, the whole process goes according to the following scheme:

• diagnostics,
• dismantling the box,
• disassembly of the box,
• complete set with spare parts,
• assembly (installation),
• installation on a car,
• diagnostics after repair.

To fix the problem yourself, you will need some car mechanic skills, tools, a certain amount of time to work with, patience and perseverance.

All automatic transmissions are arranged the same, but there are two types of transmission control - hydraulic and electronic. Their renovation has some differences.

It is important to notice transmission problems at the earliest possible stage. Then, with the correct diagnosis, complex repairs can be avoided. Quiet and smooth operation of the automatic transmission is considered normal. There are a lot of signs that something is wrong with the box. Most often these are extraneous sounds when changing gears or during robotic transmission. It can be crunching, clicks. An unpleasant smell also speaks of problems.It can appear during long-term or short-term operation of the box. It is worse if the gear shifting slows down, or one of them does not work at all. Then immediate intervention is required.

Do not be lazy to look under the car, it should be clean there. Red spots will indicate an oil leak from the transmission. Checking the oil level regularly is a must. Normally, it should be translucent, reddish in color. No burning smells or muddy shades! If they appear, it's time to change the oil.

Automatic transmission malfunctions often arise due to improper operation. The transmission becomes unusable due to insufficient oil level or overheating. For this reason, the gears wear out, the machine can jerk when changing gears. As a result, any part of the automatic transmission may fail. Shocks when driving indicate overheating of the oil and the appearance of problems in the valve body.

Aggressive driving with hard acceleration and braking will erase details. Does not add durability to the box and driving in traffic jams, slipping. All this leads to overheating of the box and has a bad effect on its general condition.

All faults are divided into two subgroups. They can occur in

• electronic control system,
• mechanical and hydraulic parts of the gearbox.

If a malfunction occurs, the automatic transmission goes into emergency mode, that is, it goes into third speed and does not switch. The corresponding icon appears on the display.

If problems have arisen with the electronics, then it will not be possible to fix them by repairing the automatic transmission. Therefore, it is important to understand the nature of the faults.

In diagnostics, the main thing is to collect the necessary information and interpret it correctly. Therefore, it is better to consult a specialist. Determine what the problem is at the service station, and take care of the repair yourself. Without proper experience and equipment, you will spend a lot of time on diagnostics. There are mechanical and computer diagnostics.

General scheme of diagnostic procedures:

• check the oil,
• check the operation of the engine at idle speed, the connection points of the wiring and cables,
• determine the error codes of the operation of the control units (CU) of the gearbox and engine,
• check the box on a car without movement,
• check the automatic transmission in motion,
• check the pressure inside the control system.

If the cause of the malfunctions is electronics problems, then most likely you will not need to dismantle and disassemble the automatic transmission. Diagnostics of malfunctions in this system is carried out by the control unit. It monitors the sensor signals, the transmission ratio and the resistance of the output circuits. Malfunctions of such parts and assemblies may occur:

• input sensors,
• electronic control unit,
• executive devices of the control system,
• violation of the integrity of the electrical wiring connections.

The transmission computer receives signals from various sensors. If some parameters are out of order, it writes the code of this problem (DTC) into memory. You can decrypt such numbers using a special scanner.

These are the main problems of the automatic transmission itself. They are conventionally divided into three subgroups:

1. Damage to friction groups, bushings and housings, calipers, planetary gear sets, pump and other mechanics.
2. Defective transformer. This includes:
   • breaks in the splines of the wires,
   • mechanical destruction of the blades,
   • overrunning clutch,
   • wear of the main blocking clutch,
   • depressurization of the piston oil seal.
   • Problems with the mechanics of the hydraulic plate.

If the diagnostics were successful and you cannot do without dismantling, then we proceed to this stage of the automatic transmission repair.

You will need a special lift, or at least a viewing hole. As well as a transmission jack and a set of keys. It is better to perform this procedure in a specially equipped garage or box. It will not be superfluous to invite several physically strong guys to help you move the removed box. Its weight is beyond the strength of even a very strong person.Further action plan:

1. disconnect all communication tubes and cables;
2. unscrew the torque converter mounting bolts, as well as the motor flywheel membranes;
3. remove and move the gearbox;
4. assess the scale of the breakdown and start repairing.

Before removing the gearbox, the oil does not need to be drained from it. However, then do not forget to substitute the container at the place where the oil supply pipes are attached when you disconnect them - otherwise you will get an ugly puddle under your feet.

All actions must be careful. Sudden movements can damage the splines on the input shaft of the diaphragm.

It is better to do automatic transmission repair with your own hands, having it at hand proprietary manual and a printed diagram of the gearbox. First you need to inspect all the systems that serve the gearbox, mounts and blocks. Then we proceed to the repair. For this:

1. We disassemble the gearbox, wash and dry the parts and check them for defects.
2. We change all gaskets, seals, as well as worn out parts.
3. Remove the inhibitor block and sump. We clean out the dirt inside. It looks like metal magnetic shavings.
4. We remove the wiring of the ring from the plug and push them inside the plug.
5. Remove the valve body, loosen the brake band bolts. We wash the valve body.
6. We check the clutches, gears and planetary gears for wear. We will replace it if there is such a need. All internal rubber bands must be changed!
7. We open the oil pump. We check all the details, especially the filter. We change what has already served its term. We use the manual so as not to swap parts.
8. We take out the valves and springs. We wash the valves. Their sticking can be the reason for incorrect operation of the automatic transmission. Replace the accumulator springs if they are broken.
9. Putting everything back into place. It is important not to confuse anything!
10. We replace rings and friction bolts.
11. We check the gear shift assembly and the large piston and put the oil pump in place.

Assembly takes place upside-down.

There are some points that it is advisable to take into account when repairing. Often a transmission problem is related to the filter. It will not be possible to change it without removing the valve body. And when it is removed, the gasket breaks. To replace it, you will need to disassemble the valve body completely. The same applies to the accumulator spring from first to second gear. A special stopper does not allow you to remove it without disassembling the valve body. All valve body gaskets are very similar, do not mix them up. Assembling the valve body, we tighten it with a torque wrench. It is important not to overtighten here.

If all the breakdowns are eliminated, we install the automatic transmission. The moment is responsible, haste is inappropriate here. During these works, the following recommendations should be adhered to:

• When installing the automatic transmission in its place, the diaphragm is checked for end runout using an indicator head. If such a defect occurs, then it must be replaced.
• The radiator is flushed until the gasoline is clean. Then a liter of transmission oil is poured into the gas turbine engine and put on the input shaft. You need to achieve a secure connection and a complete fit. Then you need to dock the engine with the box along the guide centering pins. The crankcases must abut completely.
• Tightening the bolts in the box is the next step. After that, the absence of gaps along the entire plane is checked. After connecting all the highways, the correctness of the connections is checked.
• At the final stage, oil is poured and the operation of the automatic transmission is checked at low engine speeds.

Beginning the installation of the box, be sure to check for the presence of centering pins on the crankcase flange - there should be two of them. If at least one is missing, the automatic transmission cannot be attached.

Automatic transmission repair and diagnostics do it yourself - not an easy, but feasible task. Choosing a car with an automatic transmission, novice car enthusiasts believe that repairing it at home is impossible. This is not true. But before deciding to carry out such important work at home, you need to weigh all your possibilities. Then you will not be in for unpleasant surprises during the renovation.

This 3-speed automatic transmission A131L with hydraulic control is structurally included in the front-wheel drive family A140-240-540. Almost all hardware and consumables are interchangeable.

A very rare machine under repair. Partly because it is unpretentious, simple and lasts longer than the most super-reliable car. Partly because it was installed on American Corollas, and these cars run under the owner until their residual value reaches such an amount that no one except Corolla fans will dare to take it to Russia across the sea.

Corollas (1.6 - 1.8L) were produced in the USA and Canada with A131L from 1983 to 2001.

For 1.5l (Tercel) engines, a sub-modification was released in 1988 - A132L.

A simple and reliable design with two indestructible planetary gears and no solenoids, in which everything is so worked out that there is simply nothing to break.

He comes to overhaul after huge runs to repair a torque converter eaten to iron, replace gaskets and oil seals (Repair kit -No 331002F), less often - worn out clutches and very rarely - brake band.

The overhaul begins with the repair of the torque converter, in which the lock-up clutch is eaten up to iron and contaminates the oil and valve body with solenoids - 331001 with an adhesive composition.

The owners prefer replacing the filter (331010 fits from A140) to cleaning, so the statistics on spare parts sales are extremely poor. To force the owners to change filters (metal with a semi-closed metal mesh - a wide square intake), in 1990 they released a new filter - with a narrow slotted intake 331010A.

Usually consumables wear out in these boxes - gaskets, oil seals, rubber dulls, springs weaken, Direct and Forward clutches are eaten up - 331108, brake band may wear out - 331022 (shared with the A140 brothers)

The pump stator bushing 331037, closest to the torque converter, is produced first from the bushings.

But often the owners prefer not to repair their box, but to buy a used automatic machine.

You can read more about the typical problems of this automatic transmission family on the page A140-240.

Repair of any automatic transmission from 1 day

CVTs, DSG, torque converters, new and remanufactured automatic transmissions, spare parts

For those who have problems with the automatic transmission (rides, but bad).

# 1 Post agent00785 Thu May 14, 2009 6:26 am

# 2 Post Sweeper Thu May 14, 2009 3:57 pm

# 3 Post Mercaushii Thu May 14, 2009 8:07 pm

# 4 Post agent00785 Thu May 14, 2009 8:22 pm

# 5 Post agent00785 Thu May 14, 2009 8:27 pm

# 6 Post akppist Thu May 14, 2009 8:28 pm

# 7 Post agent00785 Thu May 14, 2009 8:33 pm

# 8 Post agent00785 Thu May 14, 2009 9:19 pm

# 9 Post akppist Thu May 14, 2009 9:21 pm

# 10 Post agent00785 May 15, 2009 6:33 am

# 11 Message agent00785 May 15, 2009 11:20 am

# 12 Post Odessa citizen May 15, 2009 11:47 am

# 13 Message agent00785 May 15, 2009 11:54 am

# 14 Message Odessa citizen May 15, 2009 12:01 pm

# 15 Post agent00785 May 15, 2009 12:11 pm

The lower cushion is slightly torn (only 3 cushions at the engine). But it was so torn for a long time already and nothing made any noise.
It's okay that at least with the automatic transmission and diff-lom everything is in order.

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AGGREGATKA is a federal network of technical centers, the main specialization of which is the repair and maintenance of automatic transmissions of all types, including robotic transmissions with double clutch, CVT transmissions and classic hydromechanical automatic transmissions

AGGREGATKA is a federal network of technical centers, the main specialization of which is the repair and maintenance of automatic transmissions of all types, including robotic transmissions with double clutch, CVT transmissions and classic hydromechanical automatic transmissions

Codename47 Apr 29, 2010 6:01 pm

Codename47 May 07, 2010 8:10 am

The problem was solved!
The reason is Zic ATF Dexron III oil. In short, both boxes are intact)))
Typical characteristics
Viscosity index: 194
Density, at 15 ° С, kg / m3: 847
Kinematic viscosity, at 40 ° С, mm2 / s: 34
Kinematic viscosity, at 100 ° С, mm2 / s: 7.5
Flash point, ° С: 212
Pour point, ° С: -52

Filled with full run Valvoline ATF Type D
Typical properties
Viscosity at 100оС, mm2 / s 8
Viscosity at 40оС, mm2 / s 41
Viscosity index 161
Dynamic viscosity at -40 ° C, MPa.s Codename47 Beginner

Messages: 20 Registered: Thu Apr 29, 2010 5:32 pm Where: Yekaterinburg

Evgeniy013 09-03-08, 2016 10:56 pm

Toyota automatic transmission repair is a very time-consuming and complicated process. This is usually done by experienced people in a service station or service center. However, after reading the article, it will become easier for you to repair an automatic transmission with your own hands.

The first place to start is to remove all sensors and attachments. After that, we begin to disassemble the automatic transmission box, that is, we remove two bolts for seventeen, four bolts for fourteen and seven pump bolts for twelve. Next in line is the removal of the pallet. Pay attention directly to the filter, it is usually dirty.

The filter is fixed with 3 screws. Having diagnosed the filter, you can tell a lot about the causes of the malfunction of the automatic transmission. After you have removed the filter, brains or hydraulic logic opens up in front of us, in which the blocking valve, pressure valve, three switching valves are located.

Removing the hydraulic logic. To do this, we disconnect the electric solenoid chips and ten bolts on the head. We detach them and remove the brains. After removing the bolts, slowly separate the plate. Please note that you need to immediately remove the drain valve from the fluid coupling and the accumulator.

Once again, we check so that nothing falls and nothing is lost, that is, we check for looseness of some parts by hand. Then we remove the pump by screwing in two bolts on the sides, the bolts, by the way, come from the starter.

We bring the bolts all the way and tighten them with the head, you do not need to use force, as it can be damaged. After doing these manipulations from the side, we loosen the two bolts by twelve that hold the pan. Then we take it out and immediately look for faults. Attention! Turn the saucepan over carefully, as small parts may fall out of it.

DIY Toyota automatic transmission repair must be very neat, so we arrange all the parts of the automatic transmission in order so that during assembly we do not get confused about what and where to attach. Then we take out the fourth speed package, which increases the row.

Next, we inspect the bearing washers, but be extremely careful with them, because they may fall, and you, from the abundance of parts in the automatic transmission, will not be able to guess that it was there. We disconnect the stopper, which can cause some difficulties, you can resort to using a screwdriver, but everything should be done very carefully so as not to damage anything. Most often, when diagnosing automatic transmission, bushing wear is detected, due to which the shafts begin to walk.

Here you can also see what turned the bearings, that is, they turn them in the inner race. All defective parts should not only be found but also replaced.

Any repair with your own hands is quite profitable financially, since you do not need to give your hard-earned money to specialists. But, if you are not very confident in your abilities, contact the service station, where they will help you save some time and wasted nerves. However, remember that any work done with your own hands is of higher quality, since you are unlikely to save money on your car.