What is the reason for the strange behavior of the VAZ-21124 car during acceleration and quiet driving, interests many motorists. Unexpected jerking on the ups and downs make them worry about the technical condition of the vehicle. After all, no one wants to have problems on the roads, and God forbid that this drawback be the root cause of the accident. Consider the most common causes that may be directly or indirectly related to this problem.
Twitching cars can be divided into three types:
- twitching at the beginning of the movement of the car VAZ-21124;
- when driving, the car twitches ;
- during acceleration.
To establish the causes of these malfunctions, you may need special equipment that can be found in the service. However, practice shows that there can be many causes of jerks and twitches of the machine. And they may not necessarily be caused by insufficient fuel in the fuel rail or a malfunction of the throttle position sensor .
Preventive action is better than repair
But first of all, it is necessary to find the answer to the question of why the VAZ-21124 twitches during acceleration. In appearance, it seems, is not quite an ordinary question. But in fact, such jerking is not at all funny. You start to feel especially terribly when the VAZ-21124 twitches during acceleration and the check lights up. Trouble has become a reality.
It has long been known that any breakdown is easier to prevent than to eliminate. Therefore, try to pay more attention to your vehicle while driving. And here a problem appears: not every driver can feel the car and determine this reason in time.
It’s worth immediately deciding on the sequence of actions:
- Checking the car for twitching while driving at idle is unacceptable. This must be done only when driving.
- Inspection should begin on the most level and safe section of the track where there is no violent movement.
- To check, start in turn to carry out a gear shift by pressing the accelerator pedal on each of them.
- If the vehicle starts to twitch without your participation, therefore, the root cause of the problem must be sought in this problem.
Causes
Why does the VAZ-21124 twitch during acceleration? You started the test, increase the speed, and the car begins to shake and twitch.
Her move lost smoothness. What is the problem? In the unstable supply of fuel to cars. In other words, it goes there periodically. Since the fuel pump delivers fuel to the car, then most likely you need to look for it.
How to cure a car?
First you need to diagnose a gas pump:
- remove the cover from it and carefully inspect visually, focusing on the place near the valve;
- if there is no o-ring, take measures to eliminate the defect.
In this case, there was a depressurization of the fuel pump, and fuel outages began to occur. It is with this that the malfunction of the car is connected. After restoring the tightness, the VAZ-21124 car (16 valves) will again begin to smoothly move along the road. You can replace the o-ring yourself, most importantly, find the right ring and tools.
The duration of this work takes about 5 minutes. So finding the problem of why the VAZ-21124 twitches during acceleration is not so difficult.
Problems at low speeds
Consider jerking at low speeds. In case the VAZ-21124 twitches during acceleration at low speeds, diagnostics of the injector and tow functionality is necessary. If it is located on the fuel pipe, there is a possibility that it could fray, which could cause a short in the wiring and shut off the injection nozzles. The solution to the problem is a complete replacement of the wiring. Do not ignore this problem, as it can lead to big trouble.
The car is twitching - check the spark
Often a car malfunction is associated with the formation of a spark, and therefore begins to behave strangely.
The easiest way to determine this problem when descending from a hill or on a fairly flat area. To prevent this, it is necessary to check the candles (VAZ-21124). In case of failure, overheating or unstable operation - replace. The price of candles (VAZ-21124) is about 700 rubles per set.
So, what are your actions if the car starts to twitch when you press the gas. In order to fix the problem, you must first find it. For example, if a car runs on gas, the problem may lie in the vacuum regulator.
Where is this part located?
It is located on the distributor. If a punched regulator is detected, carb replacement will not help. Most likely, replacing the regulator will help fix the problem.
The next culprit in periodic jerking cars may be the accelerator pump atomizer. To prevent damage, remove the diffusers and press the lever to evaluate the operation of the pump in each of the chambers. If at least one of them exhibits unstable operation, this is a reason for the VAZ-21124 to twitch while driving. Removing the sprayer completely to clean and purge it will help solve this problem. After the procedure, the cleaned part should be installed back. If this was the main reason for the jerking of the car, then the problem is solved.
VAZ-21124 twitches during acceleration. Perhaps this is a diaphragm malfunction
An insufficient amount of fuel, which is caused by the most elementary blockages of fuel filters, can provoke such shocks.
To determine the technical condition of the filters, it is necessary to disconnect the rubber hose and blow the mesh.
When performing this action, do not forget that the fuel tank cap must be removed.
After a certain time, the procedure should be repeated, and the washing of the fuel tank must be added to the filter cleaning. These steps will help avoid the next clogging and extend the filter's life. If the cause persists and the car still twitches, pay attention to the fine filter. You may even have to replace it with a new one. For the unhindered flow of fuel into the tank, it is necessary to fill it with the specified part and start the power unit. To do this, replace the fuel hose with a translucent tube and begin pumping fluid into the filter. Finally, reinstall all parts and make a few presses on the hand pump. Only after the engine factory can you fully check its operation. The implementation of this action contributes to the rapid filling of the filter with fuel.
Driver actions in case of twitching of the car with carburetor engine
The reasons for jerking cars are outdated fine filters. If the indicated problem happened to you on the way, then the best way would be to contact the auto repair shop. The best way out of this situation is to replace them.
The reason for jerking is the control unit
The alleged cause of the shocks lies in the gear shift. To understand the essence of twitching is difficult enough.
Therefore, if you notice that the VAZ-21124 twitches during acceleration or driving - it is better to contact the car repair shop for diagnostics. In the auto center, they can easily determine the cause, since it is much easier to see the problem on the lift. The movement of the car at idle makes it possible to understand not only why the car is constantly pushing, but also to track the smoothness of revolutions. Sometimes this problem is much more complicated than it seems, and to find it, it will be necessary to create special operating conditions, which is completely impossible to accomplish while riding.
Jerking machine while engine is running normally
This indicates that the engine is working, and the problem lies elsewhere. In this case, check the following points:
- reliability of fastening the power unit;
- check racks for integrity;
- wheel tightness.
If the problem is not found, you will have to look for specialists to conduct diagnostics and stop driving for a while.
findings
As can be seen from the above, the reasons for twitching the machine during its operation are many.
And you do not need to be an expert in the automotive business. Any damage to your car should be fixed by anyone. If you notice strange behavior of a car, including jerks with twitches, you should definitely seek advice from a car service or ask automotive professionals who have more than one year of practice behind them.