Why the reverse gear on the VAZ-2109 does not engage and what to do. Reverse gear of VAZ 2109 does not engage: causes and repairs

Causes

The reasons why reverse gear engagement is poor or difficult may be as follows:

loosening of the fastening clamp of the rocker, due to which the length of the rod is not enough to fully engage the gear;
jamming of the reverse speed lock;
spring breakage and debris getting into the guide grooves of the gear selection mechanism;
spontaneous loosening of the selection mechanism mounting bolts;
the clamp bolt is cut off;
wear of the clutch disc and release bearing;
incorrect adjustment of the clutch and clutch pedal;
low oil level in the box or the need to replace it.

Clutch

When the clutch discs wear out, the pedal moves up and its position becomes higher than the others. In this case, when turned on, a crunching sound may be heard and the lever does not move, as if it is resting against an obstacle. You should not force the assembly, as this can lead to more serious damage - the gears will fly.

It is typical for such wear that the clutch pedal falls to the floor and you can hear from drivers that the VAZ 2109 does not engage the gears. Usually this applies to all gears, but only first and reverse can fail.

You can check by removing the rubber plug. The destroyed disc leaves fibers that look like tangled strands of hair. If such a phenomenon occurs, then a new clutch disc should be installed.

Due to constant loads, the cable stretches and must be periodically adjusted and tightened. In this case, the VAZ 21093 does not engage the first and second gears, and the rear may also fail. To fix the breakdown, you need to drive into the pit and tighten the cable. If it is worn out, replace it immediately. You can do this yourself.

A similar breakdown can also manifest itself in the failure of the gears to engage while the engine is running. Sliding along the splines is limited and fixation does not occur.

Causes of gearbox failure

The complex mechanism constantly works under load and under extreme conditions. Constant vibration, rising temperatures, dust and dirt. If one or more speeds fail to turn on, you should check:

cable tension and integrity;
fastening the scenes;
wear on the clutch disc;
petals on a basket;
bearing integrity;
plug condition.

Clutch

It is typical for such wear that the clutch pedal falls to the floor and you can hear from drivers that the VAZ 2109 does not engage the gears. Usually this applies to all gears, but only first and reverse can fail.

You can check by removing the rubber plug. The destroyed disc leaves fibers that look like tangled strands of hair. If such a phenomenon occurs, then a new clutch disc should be installed.

A similar breakdown can also manifest itself in the failure of the gears to engage while the engine is running. Sliding along the splines is limited and fixation does not occur.

Basket

The reason for difficult shifting of individual gears, especially if there is a crackling sound that gradually fades while moving, may be the destruction of the spacer ring in the basket. Notice that there are drops of oil on the outside. Then remove the basket and check the O-ring and disc blades. Pay attention when purchasing new parts, because on some models the disk is missing and then you have to install pins and secure it yourself.

How to adjust the link?

You should drive the car onto a lift, pit or overpass. It is not recommended to carry out the procedure alone; you will need an assistant to switch the lever. You must proceed as follows:

Crawl under the bottom, loosen the clamp located on the gearbox rod and remove the drive from the rod.
Pull off the boot or remove this part altogether, unscrew the screw on the cardan.
Use a hammer to carefully knock down the cardan shaft and remove the boot, if this was not done initially.
If necessary, replace the oil seal.
Installation is carried out similarly, but in reverse order.

After the above steps, you will need the help of a second person. He should sit behind the wheel, set the gearbox lever to neutral and tilt it slightly to the right. It should be held in this position until the universal joint clamp is properly tightened.

First gear does not engage when driving

Often, when you turn on first gear while the car is moving, it jams and does not work. There are no problems when starting to move from a place. Some “experts” even put forward the theory that you should only start moving from the first gear, and should not use it during maneuvers.

This problem occurs because the injectors do not have time to equalize the torque of the gears, and the driver forcibly tries to connect them. The flywheel spins much faster than the drive shaft and the teeth can fly if the force is large.

Don't rush to press the lever. Bring it to neutral, push it lightly into first gear, and wait for the synchronizers to do their job and the gear to engage.

For old boxes there are instructions for switching with re-gas. When downshifting while driving, move the handle to neutral, step on the gas, increase the speed, and then smoothly change gear. This method is used by owners of preserved vintage cars, the price of which has recently increased significantly.

First speed not fixed

When you start driving in first gear, especially on heavy ground such as sand and snow, you will have to hold the gear lever as it does not hold on its own, the transmission shifts to neutral. There could be three reasons for this failure:

The wings are loose and the fork does not fix;
Wear of gears and clutch;
Engine power is on the cushions and knocking out of the box.

It is necessary to completely check the condition of the fastenings of all parts and assemblies. The gearbox is rigidly mounted to the engine. However, when the engine slides over the airbags, first gear

may be knocked out. Tighten all bolts and check the rigidity of the mounting on the body. You can do this work yourself.

Secure the drawbar firmly to the shift lever, select the game as it is responsible for locking the lever in the correct position. To do this, place the car in the pit. Open the lid and audit. Pay special attention to the condition of the gears.

When worn, the gears can slip and jump out without transmitting torque. When you press the lever with your hand, the clutch fits snugly and engages.

New box

Problems arise when they pick up the car from the service station, and the VAZ 21093 gearbox speed is not included. At the same time, when the engine is not running, the shift lever moves smoothly without cracking. As soon as the car starts, the transmission stops engaging. First of all, check the movement of the gears and forks along the grooves - along the axis of the shaft. Since you have opened the window, pay attention to the position of the driven disk to see if it is installed correctly.

If a problem is discovered shortly after servicing the vehicle, do not worry about it yourself. Send your car back and let the locksmith find and fix the problems himself. Remember that you don't have to pay for poor quality repairs.

Troubleshooting

Many transmission malfunctions that cause the reverse gear to disappear or fall out can be eliminated without removing the unit from the car.

If the cause is a loosening of the bolt securing the clamp on the rod, then to correct the defect it is necessary:

Place the car on a lift.
Completely loosen the clamp nut.
Place the gearshift lever in the fully engaged reverse gear position.
Fully engage reverse gear at the gearbox using the shift rod on the crankcase.
Tighten the clamp mounting bolt.

Backstage adjustment

If tightening the clamp does not help get rid of the problem, then you need to check the condition of the shift drive parts. One of the reasons why the reverse gear does not engage may be a poorly adjusted rocker.

To make adjustments to the mechanism, you may need the following tools:

two wrenches with a size of 13 mm, preferably a socket design;
any wrench or 10 mm socket;
small hammer;
slotted screwdriver.

Since the cause of malfunction of the link can be wear of parts, spare parts may be needed:

universal joint of the rocker;
Sometimes the shift rod seal may need to be replaced.

Two people are required to adjust the rocker or replace parts of its drive. One person must change gears from the passenger compartment, and the second must adjust the travel of the shift rods.

The order of work is as follows:

Provide access to the bottom of the car by placing it on a pit or a lift.
Using a 13 mm wrench, loosen the clamp installed on the gear shift rod.
Remove the rod from the box rod.
Using a screwdriver, carefully remove the boot.
Using a 10 mm wrench, unscrew the fixing bolt on the cardan shaft.
Knock off the cardan shaft with light blows of a hammer. It is important not to damage the shaft.
Remove the universal joint seal boot.
If there is an oil leak, the sealing gland on the box rod must be replaced.
Install a new boot (or leave the old one if it is intact) and install the universal joint on the shaft.
Align the hole on the cardan with the notch on the shaft.
Tighten the 10 mm clamp and install the boot completely in place.
Install the rod on the cardan rod and adjust the gearshift lever travel.
The second person should sit in the driver's seat, set the gear shift lever to neutral, move it slightly to the right and hold it in that position.
After this, you need to tighten the 13 mm clamp nut.

Problems with reverse gear on automatic transmission

In practice, gearbox malfunctions associated with engaging reverse gear occur on both manual and automatic transmissions. "Automatic machines" have different designs. Robotic boxes are similar in design to “mechanics”. But the automatic transmission has its own list of breakdowns when it works hard or the reverse gear has disappeared.

The fluid level is below normal, or it is contaminated and has lost its working qualities. The automatic transmission device is sensitive to the quality of the lubricant and its level. Therefore, it is better to start finding out the cause by checking the transmission fluid. An excessive oil level also contributes to improper operation of the unit. The service life of the fluid is limited to a mileage of 60 thousand km, but sometimes it is necessary to change it more often, as the lubricant becomes cloudy and contaminated.
Wear of friction discs. The correct operation of reverse gear, as well as the “D” (drive) mode, depends on this. Worn clutches may prevent 3rd, 4th and reverse gears from engaging. In this case, eliminating the breakdown consists only of replacing the clutches.
The splines on the drive drum are cut off. The car can move forward, but it will be impossible to go backward.
Worn friction brake band. There is no reverse movement, but forward movement works.
The brake band piston cuffs are torn or worn. This will only be noticeable when you engage reverse.
Control solenoids or hydraulic units are jammed.

Sometimes the lack of communication between the torque converter and the oil pump gear also affects the reverse operation.

Gears engage with effort: gearbox malfunctions

In cars with a manual transmission, gear shifting is done by the driver himself. Using a lever from the interior, it acts on the rocker and then on the entire gearbox mechanism. Simply put, the driver moves the gears on the shafts.

Since the shafts rotate at high speeds, cooling is required. This is done using special gear oil. Oil also protects the surfaces of rubbing parts from premature wear. The lubricant must be changed on time. On average, this is done after every 40-50 thousand kilometers.

As for the reasons for tight gear engagement, there may be several of them. However, most often they are associated with problems in the clutch or the gearbox itself. If you study the list of the most common breakdowns, then you can highlight the following:

the link is poorly adjusted. In particularly difficult cases, it may be necessary to replace the plastic bushings. This procedure, like adjustment, can be done on your own;
hydraulic drive failure. If it leaks, you may not be able to engage the gear at all, since it is impossible to disengage the clutch;
the clutch cable has broken or fallen off (in a cable clutch);
The clutch basket has failed.

The exception is reverse gear, since it does not have synchronizers; By the way, when the reverse gear is difficult to engage, extraneous noises, clanging, and crunching often occur. Such phenomena directly indicate wear of the gear teeth.

How to change gearbox oil

If you need to change your oil, then first of all, buy it.
A four-speed gearbox will require three liters of transmission fluid. You will need to pour 3.3 liters into a five-speed gearbox. If you are changing the oil for the first time, then buy 80W-85 class fluid. It is perfect for use in the VAZ-2109 gearbox. Car owners prefer to purchase Lukoil brand products. The work of changing the oil in the box is carried out as follows:

Place the car on an overpass or over a pit, warm it up slightly so that the liquid is not viscous. Locate the oil drain plug on the bottom of the box.
The unit has a rubber cap that needs to be cleaned along with the breather. After cleaning these parts from dirt, return them to their place.
As soon as the preparatory work is completed, place the container, twist the plug with a wrench, and begin draining the transmission oil.
The waste liquid will drain completely within half an hour.
Screw on the plug, tighten it well, but do not strip the thread.
Under the hood, find the transmission dipstick and remove it. In place of the probe, stretch a hose, at the other end of which a regular watering can or funnel is installed. Pour transmission oil into the box through the hose. On older units, the fill plug is located next to the drain plug.

After the work is completed, check the lubricant level with a dipstick and take a control measurement after 2-3 days. If necessary, add oil; if it becomes critically low, inspect the box for leaks.

Old gearbox oil or low level

If the car is not new, then who knows if the gearbox oil was changed and when? You need to change the oil and pray that something worse doesn't happen. If there is a leak, drop by drop a day and you may not notice how the oil leaks out of the box. As a rule, this happens through the gearbox gasket or shaft seals. Over time, the box reacts to this with increased noise, but you might not have noticed this either. Both changing the oil and replacing gaskets with seals is best done at a service station, or on your own if you have a “green” understanding of what you are doing.

Reverse gear of VAZ 2109 does not engage: causes and repairs

The situation when reverse gear does not engage on a VAZ 2109 is one of the most common problems with this car model. In addition, the VAZ 2108/09/099 “Samara” and VAZ 2113/14/15 “Samara-2” cars were equipped with the same type of gearbox (gearbox), so this transmission malfunction is typical not only for “Nines”.

Often, an attempt to engage a gear is accompanied by a strong crunch of gears, and if the gear is able to be engaged, the gearbox makes noise when moving in reverse. Other owners are faced with a situation where the gear shift lever moves forward all the way, but reverse gear does not work. At the same time, there are no complaints about shifting forward gears.

Changing the gearbox oil

Replacing the gear selection mechanism

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Extending the service life of gearboxes

You will be able to use your car for many years without going to car repair shops if you can follow basic recommendations. They will extend the service life of the gearbox, minimize possible problems, breakdowns and the need for repair work.

Transmission shaft assemblies

There are only two recommendations.

Always try to monitor the oil level in the gearbox. If it drops, be sure to top it up immediately, do not delay the procedure until later. When the oil becomes unusable, change it completely, rather than fill in the missing amount.
Avoid aggressive use, do not jerk the gears sharply, accelerate smoothly, and brake similarly. A simple caring attitude towards the gearbox will allow you to avoid wear and tear and numerous breakdowns.

As you can see, solving problems with checkpoints is not so easy. Therefore, the best option is to prevent their occurrence.

Big trouble

Sometimes the reason for poor gear shifting lies in a more serious problem than described above. We are talking about damage to the spring, which is present in any box. A piece of the spring gets stuck in the groove and prevents the gear from changing normally. In some cases, reverse gear disappears completely, and sometimes works intermittently.

The problem is quite serious, because you will have to go deep into the unit, and not every car owner can do this. It is better to contact a car service if the reverse gear on the VAZ 21099 is difficult to engage. The technician will conduct an inspection and decide on further actions. You can replace the spring or install a new gear shift mechanism assembly. The second option is more preferable, since a separate spring may soon break again.

There are several reasons why the reverse gear on a VAZ 21099 does not engage. The breakdown must be identified and repaired in a timely manner in order to prevent serious consequences.

VAZ 2109 does not engage reverse gear

Placing the rear speed in the extreme position most often leads to its refusal to engage. Since several models have exactly the same boxes, the VAZ 21093 does not engage reverse gear for the same reason. It may be a short lever and the rocker is not enough to reach the desired position.

Just look at the photo of the gearbox below to determine the cause. Repairs should be carried out in the pit, since everything will have to be done from below. You need to loosen the slide. Align the gears with the reverse gear and tighten the bolt. The lever should be in the reverse gear position.

Box nuances

The VAZ 2114 uses a five-speed manual gearbox. It is quite simple in design, which allows you to independently carry out preventive and repair work.

Device diagram

Experts recommend identifying a malfunction at the initial stage of its occurrence, since delaying means wasting even more time, effort and money.

Features of replacing transmission fluid

Transmission oil must be changed at regular intervals, usually every 15-20 thousand kilometers. However, it may exhaust its resource earlier. This can be determined using a probe. Take a piece of white cloth and use a dipstick to transfer a drop of oil onto it. It is necessary to change the lubricant in cases where a drop of oil:

colorless or has a black tint;
contains metal particles or grains of dust;
opaque and viscous;
sticky to the touch;
absorbs into fabric for a long time;
cloudy or foamy.

Most often, reverse gear is difficult to engage if the oil has become cloudy. This is a sure sign that it has entered the engine. If the problem is not detected in a timely manner, you will soon need to carry out a complete gearbox repair or even an expensive transmission replacement.

Recommendations from experts

Sometimes the driver is forced to drive a car with a faulty gearbox in order to get to the repair site. But how to turn on the speed if the clutch is faulty or the synchronizer is worn out?

If first gear does not work, you can carefully move away in second gear.
If difficulties arise when turning on the engine while the engine is running, you can do this with the engine stopped and then start it. But this method can only be used by experienced drivers, as it can damage the transmission.
Double squeezing and re-gasping. It is necessary to set the gearshift knob to the neutral position, then press the clutch pedal, and lightly press the gas (up to 2500 rpm according to the tachometer). After this, you need to slow down and disengage the clutch again, and then engage the gear. If this does not work, then you need to repeat all the operations again. While driving, experienced drivers know how to change gears without a clutch mechanism.
When engaging reverse, the lever may not reach all the way. Then you need to slightly release the clutch pedal, the gear will turn, the teeth will engage, and the handle will reach the end.
After pressing the pedal, it is recommended to wait 3 seconds and then engage reverse gear.
You can try turning on the reverse by first setting the handle to 4th, then to the rear.
Repeatedly squeezing the clutch and returning the gearshift lever to neutral sometimes also helps solve the problem.

First gear is not engaged when driving

Often when you put the car into first gear while the car is moving, it gets stuck and doesn't work. Once you start moving there is no problem. Some "experts" have even theorized that first gear should just start moving and should not be used during maneuvers.

This problem occurs because the injectors do not have time to equalize the torque of the gears, and the driver forcibly tries to connect them. The flywheel rotates much faster than the drive shaft and the teeth can fly if the force is high.

READ Replacing crankshaft oil seal VAZ 2115 8 valves

Don't be in a hurry to press the lever. Move it to neutral, push it lightly into the first gear position and wait for the synchronizers to do their job and the transmission begins.

For old boxes there are instructions for replacing gas. When downshifting while driving, move the lever to neutral, press the accelerator to increase speed, and then shift smoothly. This method is used by owners of preserved vintage cars, the price of which has increased significantly in recent years.

Source

Often, trying to engage the transmission will result in a loud grinding noise from the gears, and if the transmission can be engaged, the transmission will make noise when moving in reverse. Other owners encounter a situation where the gearshift scenes are fully advanced, but the rear derailleur does not work. No complaints about the forward shift.

Changing the gearbox oil

Replacing the gear selection mechanism

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