Russian motorists are familiar with the Jatco JF414E automatic transmission from cars such as the Lada Granta. This four-speed transmission has become popular among small car owners. It all started in 2012. Everything about this automatic transmission: troubleshooting the torque converter, proper operation, as well as the opinions of supporters of this transmission - will be told to the reader further.
Automatic transmission "Jatco"
The Jatco JF414E transverse automatic transmission belongs to the Mini class. Designed for front-wheel drive vehicles with an engine displacement of no more than 1.6 liters. It was created and developed in the country of Japan, and the company that manufactured this transmission is called “Jatco”. The name is an abbreviation for “Japanese Automatic Transmission Co.”, which translated into Russian means “Japanese Automatic Transmission Plant.”
The JF414E model is not just a set of letters. It also has its meaning.
- “f” means front-wheel drive;
- the number “4” indicates 4 gear stages;
- “14” – serial number of the modification;
- “e” – electronically controlled.
general information
The first Lada cars with automatic transmission rolled off the production line in 2012, and their sales began at the same time. The cost of the car was about 400 thousand rubles. For this money, the car enthusiast gets a car with a 1.6-liter engine and 98 horsepower.
The process of integrating the Japanese gearbox with the Tolyatti Lada engine was very difficult. To coordinate the operation of these units, domestic engineers had to turn to their Austrian colleagues for help. Many settings of the Japanese automatic transmission had to be abandoned, since the box with them was too slow. As a result, VAZ specialists, together with the Austrian company AVL, managed to eliminate all the shortcomings of the system and successfully match the JATCO transmission with the Lada engine.
What cars was it installed on?
It was the Jatco automatic that AvtoVAZ chose in 2012 for the Lada Granta manufactured by that time.
The gearbox can be seen on the following car models:
- Lada "Granta";
- Lada "Kalina2".
Read
Do-it-yourself oil change and automatic transmission repair U340E/U341E
The reader, of course, will be interested in what other foreign brands of cars, besides the Russian Grant and Kalina, are equipped with the Jatco JF414E automatic transmission.
The following is a list of Japanese car models:
- Datsun On-Do;
- Datsun Mi-Do;
- Nissan March;
- Nissan Almera;
- Nissan Ad Van.
Recently, Jatco has been producing V-belt variators in addition to automatic transmissions. Cars with such a transmission are not afraid of snow and dirt. An example is the Nissan Xtronic CVT on the Xtrail model.
Characteristics of manual transmission Lada Granta
The Lada Kalina inherited two problems:
- slight vibration during operation;
- resistance when activating fifth gear.
In 2011, the manufacturer slightly modified the standard gearbox, replacing it with a manual transmission with a cable switch.
The new transmission is more reliable than the previous one, with improved shift quality. Outdated rods have been replaced with cables. The installation of a new type of synchronizers helped reduce the effort when activating the first and second gears.
The gear selection (switching) module was moved to the top of the manual transmission, reducing the negative impact of temperature conditions on the hinges. Modernization of the oil supply channel helped reduce the volume of liquid required for filling.
For example, an outdated model with metal rods had to be filled with 3.35 liters of oil, a modernized version with a cable drive - only 2.25 liters.
Note to the driver! In a new model manual transmission, it is strictly forbidden to fill in mineral-based gear oil, only semi-synthetic, synthetic.
The new modification of the manual transmission (2181) received a lock to control the activation of the reverse gear. We also changed the position of the “R” gear, making it more convenient to activate the rear gear. Previously, I had to constantly twist my elbow, which is inconvenient from a physiological point of view.
The overall gear activation force coefficient has decreased by 11%. Manual transmission 2181 is installed in the Lada Granta “Standard” version. While “Norma” and “Lux” are equipped with automatic transmission.
Related link:
New body modifications of Lada Granta 2022
Tips for use
But no matter how unpretentious this transmission may be, it is necessary to operate it, like any other thing, correctly.
There are certain rules that any owner of a car with a Jatko automatic must adhere to:
- Checking the level and changing the oil.
- Correct driving.
- Proper towing.
Proper driving with Jatco automatic transmission
The Jatko automatic transmission is reliable and durable. The key feature is the ease and smoothness of gear shifting. But in any case, it is recommended to warm up the car before driving in winter. And in the summer - cool.
No need to pull the shift knob. The automatic transmission itself adapts to your driving style. The driver only needs to enjoy the ride with this transmission. And also the automatic does not like long driving at high speed.
Towing a car
In order to tow a car with a Jatco automatic, the following recommendations should be followed:
- Tow for a distance of no more than 40 km.
- Do not exceed the speed when towing – 35 km/h.
- Move the transmission rocker to the neutral position.
- Avoid jerking when towing. This may render the Jatco automatic transmission unusable.
Read
Design and principle of operation of the CD4E automatic transmission
Shift modes: gear shifter
As with all cars with an automatic transmission, Jatco has the following rocker positions:
- P – parking;
- N – neutral;
- D – forward movement;
- R – backward movement;
- 1 – movement only at first speed;
- 2 – start moving in 1st gear, then automatically switch from first to second gear. The automatic transmission will not accelerate the car beyond 2nd gear.
The model is also equipped with “M” mode – mechanical. The driver will be able to independently increase or decrease gears. And it has “A” - automatic mode. Switching will occur using an actuator block.
Repair or replacement
If, during checking the condition of the box, serious damage to its elements was revealed, then serious repairs cannot be avoided.
It should be immediately noted that independent dismantling, repair and reassembly of a gearbox requires not only very good equipment (nominally a pit or overpass, a lifting device, as well as a large set of tools are required), but also very serious knowledge.
That is why, if the gears of a VAZ 2114 do not engage, such repairs should be entrusted to specialists from car service centers.
If we talk about the choice between repair and complete replacement of the unit, then in most cases you should choose the first option. This is due to two reasons. Firstly, the cost of a completely new box exceeds 15 thousand rubles. (moreover, this amount is indicated without taking into account the cost of its installation). In any case, repairs will be much cheaper. And secondly, complete wear of the box (to a state unsuitable for repair) is extremely rare.
Features of automatic transmission maintenance
Jatco transmissions do not require close attention. They are easy to maintain.
Automatic transmission parts are similar to its relatives:
- RE4F03A;
- JF403E.
This makes it cheap to repair. The design characteristics are simplified as much as possible, since it is installed on budget cars.
The oil change in a Jatco automatic transmission can be done by the car owner himself or by specialists at service stations.
Checking the oil level and condition in the Jatco automatic transmission
You can use any lubricant for automobile automatic transmissions. In addition, analogues such as Dexron 6 can be poured into it.
Checking the presence of transmission fluid in the Jatco automatic transmission is done using a dipstick when the engine is warm. Some experts advise checking the level and condition of the oil using the overflow tube by removing the plug from the bottom of the pan.
After traveling 200 thousand kilometers, experts recommend installing an external fine filter. This is done in order to avoid small debris from entering the valve body, which appears due to wear of the clutches. Since the metal mesh, which is an internal filter, will not be able to contain these particles.
Read
Main causes of malfunction, valve body adjustment and repair of automatic transmission DP0 AL4
Attention! It is recommended to do the first change of transmission fluid in JF414E automatic transmissions after driving 80 thousand kilometers. And the subsequent ones - after 60 thousand kilometers.
Replacing transmission fluid in a Jatco automatic transmission
If the owner decides to change the oil himself, then below are instructions on the correct procedure for changing the transmission fluid.
- Unscrew the transmission fluid drain plug “JF414E”.
- Place a container to drain and wait until the oil is drained.
- Remove sixteen pan mounting bolts.
- Using napkins, clean the inside of it from old oil.
- Remove the oil filter.
- Clean the filter element.
- Reassemble the pallet in the same sequence and put it in place.
- Pour 1.5 liters of transmission fluid into the place where the dipstick is inserted.
- Insert the dipstick. Start the engine.
- Drive the car until the oil warms up to 80 degrees Celsius.
- Drive onto a level area and check the level.
- If necessary, add oil.
Reviews
| № | Positive |
| 1. | Vladimir: I am satisfied with the build quality of the Lada Granta, there are no significant comments. I fix minor damage myself. This is a budget class car, so the shortcomings are quite obvious. |
| 2. | Kirill: I haven’t had any particular complaints about the car for a year and a half, I regularly visit service stations, carry out diagnostics and replacements. When purchasing consumables, I give preference to original ones and check the correspondence of the catalog items. |
| 3. | Vasily: I bought Granta with the new mechanics of version 2181, I am 100% satisfied with the quality of work. This is a breakthrough for domestic transport, well done. Minor breakdowns are present, but they are not so significant and can be easily repaired. |
| 4. | Dmitry: in two years of active use of the car, I changed the transmission oil and filter once. The unit is operating normally, there are no comments. |
| 5. | Alexander: during the year of active operation of the machine there were no problems, I did not contact the service unscheduled. I fixed minor breakdowns myself, without visiting a service station. |
| 6. | Alexander: I’m happy with the car, there have been no major breakdowns in a year and a half of use. I believe that systematic maintenance and careful handling of equipment are the main factors for trouble-free operation of the mechanism. |
| 7. | Ivan: I’ve heard a number of negative reviews about the Granta gearbox, but I can’t confirm it. There have been no major breakdowns in two years of use. |
| Negative | |
| 1. | Sergey: extremely dissatisfied with the quality of manufacturing and assembly of components for the Lada Granta. The first time the oil seal leaked on the machine was already at 55,000 km. After 10,000 km, I replaced one of the drive cables. |
| 2. | Vasily: despite the promised service life of the transmission of 180,000 km, mine lasted only 65,000 km, after which I carried out preventive maintenance at a service station. |
| 3. | Victor: I’m disappointed with the build quality of the car, there are a lot of flaws, it’s a little damp. Elimination requires time, effort, and resources. It’s better to buy a Renault Logan, where the quality is proven and the breakdowns are insignificant. |
Conclusion The serial installation of automatic transmissions on Lada Granta cars is a huge breakthrough for the domestic automobile industry. Japanese units have long been famous for their good quality, reliability, and unpretentiousness.
I believe that most breakdowns are caused by violation of the operating conditions of the technical equipment. Owners often save on timely maintenance and the purchase of original consumables. They pour cheap mineral-based oil into the system, which is strictly prohibited.
Source
Signs of a Jatco automatic transmission failure
Frequent malfunctions of the Jatco automatic transmission are:
- oxidation of solenoid contacts. The latter quickly fail if the owner ignores the advice on installing an external filter;
- violation of wire insulation. The electrical part of the automatic transmission is afraid of voltage surges and therefore the electrical board often burns along with the wires if it is not properly “lit” from the battery;
- rupture of wires and connecting clamps.
The hydraulic unit may also fail. This happens mainly due to the fact that when changing the oil, the pan was not cleaned of old transmission fluid or low-quality cheap oil was filled in.
Read
DIY automatic transmission 01n and valve body repair, manual
The main cause of oil leakage in a Jatco automatic transmission can be old rubber gaskets. Therefore, it is recommended to change oil seals and gaskets in a timely manner, preventing them from drying out or aging. Since this will cause the problem of low transmission fluid level. And oil starvation can damage the bushings.
Gears don't engage well, we know why
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Francois "experienced owner"
Experienced car enthusiast. First there was the VAZ-2107, then the Russian front-wheel drive, then foreign cars, there were even right-hand drive ones. I try, like a “doctor,” to look and listen to the car completely. I give each of my vehicles a name.
Explanation of difficulty shifting gears on the Lada Granta
The 81st box has a special feature: the gear ratios for stages 1 and 2 differ to a maximum. When shifting, you must wait for the input shaft to slow down. And after changing the oil, it began to slow down worse, for which there may be reasons:
- Underfilling (albeit small);
- Low viscosity.
To control, unscrew the top plug
On box 2181, oil level control is difficult (see photo). The filling volume is 2.2-2.3 liters.
Case from practice
- On the first one, we do not turn the engine up to 3000 rpm - we go to the second one “with a pause”;
- You can move earlier, then the “pause” will be shortened.
Automatic transmission diagnostic methods
To calculate the transmission problem, it is necessary to conduct computer diagnostics. Since this model of gearbox most often does not remember errors that occurred in it while using the car.
Service station specialists often use a trick to avoid having to go around with the owner looking for troubleshooting. They drive it onto the lift so that the wheels hang freely in the air and start the engine. And then they start looking for problems.
Electronic control system
The electronic control system rarely fails. If the firmware fails, then the technicians reflash the computer unit of the automatic transmission.
Mechanical and hydraulic part
The check occurs visually:
- If, when checking the oil, the owner found many black specks, this means that the friction linings have become unusable. Therefore, the sooner the car is sent to a service station, the lower the chance of a complete automatic transmission replacement.
- A jammed pan cover can damage the transmission's mechanical parts and cause oil loss.
- reading codes that appear on the dashboard. The explanation of fault codes is in the manual for this transmission model.
Scheme of work
The clutch assembly is located between the power unit and the transmission. When you press the clutch pedal, the connection between the engine and the wheels is broken. At this moment, the driver activates the desired gear to continue driving.
“Mechanics” is a metal case, inside of which there are shafts and gears. One gear is rotated by a motor, the other transmits rotational motion to the wheels.
Gear shifting occurs using a lever (slide), which is located inside the car.
Note to the driver! First and reverse gears have the most power but the lowest speed.
In a manual transmission, the gear travel is significantly reduced compared to the traction mechanism. The location of the switching block (module) makes it possible to minimize the dependence of the transmission on the ambient temperature and the operating temperature of the engine.
In the 2181 series box, it was possible to significantly increase the service life by reducing possible oil leakage points. Two sealing glands instead of the previous four.
The average service life of mechanics before major repairs is 200,000 km.
The cable drive has already proven its unconditional advantage over the traction drive. The quality of gear engagement has improved. Despite the fact that the “box” is one of the most complex units in a car, provided it is treated with care and timely maintenance, critical problems do not arise.
Jatco box design
The design of the Jatco automatic transmission, like other transmissions, consists of:
- torque converter;
- planetary part;
- valve body
Torque converter
The torque converter is both the clutch and the fluid coupling of the Jatco box. It converts torque from the engine and transmits it to the input shaft.
Planetary gear
Planetary gear includes:
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- sun gear;
- satellites that are attached to the planetary carrier;
- clutch;
- band brake.
Clutches and steel discs
The automatic transmission's clutches and steel discs serve as elements for engaging the clutch and transmitting torque. Essentially, friction clutches are steel discs, only friction tape is glued onto them. Pressing against the steel discs, the clutches connect the two rotating shafts of the automatic transmission.
All this is controlled by a computer, and the hydraulic unit presses on the pistons of the drums, squeezing the clutches in shifts.
Hydraulic unit
The automatic transmission valve body of the 414 e model is reliable and rarely fails. Most often, the owner has to replace solenoids. They are a consumable element of the transmission.
Knocking out the speed
If it turns on, but immediately turns off, then the latch may be stuck in the squeezed position, so it no longer does its job. It is also possible that the spring that presses the ball retainer is destroyed. Without the force of the spring, it will not be able to hold the slider in the desired position.
If significant force is applied while shifting into gear, the shift fork may bend.
If this happens, then the gears will no longer fully engage, and the slider itself will not reach the stop, which will prevent the latch from entering the groove.
Poor switching may also be caused by incorrect installation of the gearshift knob. In this case, the rocker does not bring the gear to full engagement.
Advice from experienced car owners and mechanics
Reviews of the Jatko automatic machine from most car owners are positive. For novice car enthusiasts, experienced drivers and repair specialists advise the following:
- When wiping the internal blocks of the automatic transmission, use lint-free cloths. It is also recommended to wipe the dipstick with a clean, thick, smooth cloth. Since fluff can get stuck in the throttle holes and damage the electronic control systems of the machine.
- When removing the oil filter cover, mark each bolt and its location with a felt-tip pen to avoid confusion. Because the bolts are of different lengths.
- It is not recommended to use an automatic transmission with a low oil level or, conversely, with a high one.
Is it difficult to engage manual transmission gears when cold? clutch? Grade:
#2 Nord
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#3 mechanik2010
- Topic author
Post edited by Nord: 11 October 2010 — 16:13
#4 Buntar
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Post edited by Buntar: 26 August 2010 — 12:07
#5 tarakan67
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mechanik2010 (26.8.2010, 11:16) wrote:
Post edited by Nord: 26 August 2010 — 15:04
#6 Tsepyatich
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#8 smith
mechanik2010 (26.8.2010, 11:35) wrote:
“Soured” drive cables for the C5-1 gearbox are a standard problem. In winter it is simply more noticeable. Mine didn’t even get through 80k on the first C5. By the way, the release lever also buzzed a little early, but it completely jammed, I remember, by 95k..
#9 AlexDav
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mechanik2010 (26.8.2010, 11:16) wrote:
#10 SERGIO1987
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Smith (26.8.2010, 18:54) wrote:
At exactly 150 thousand, my bearing first hummed, then jammed, then one ear fell off.
As a result, when I compared the clutch removed from the car and the new original one, I didn’t notice much of a difference. The basket is almost perfect, only the release bearing has worn out its petals, the disc is just perfect, but the release bearing is just screwed. sheer
#12 mechanik2010
- Topic author
tarakan67 (26.8.2010, 14:18) wrote:
I tried it, squeezed the clutch several times, there was no backlash, the symptoms were the same. Probably the cylinder is fine and the problem is something else. Perhaps it really is the cables, although I have a hard time believing it, the car is moving, and the cables are only responsible for switching.
leonn_c5 (26.8.2010, 16:53) wrote:
