The VAZ 2109 carburetor stalls idle. The car engine stalls while driving

One of the problems that a car enthusiast with domestic car VAZ 2109 - the carburetor stalls while driving. A large number of articles are devoted to this topic, but real experience will solve the problem faster, since there are several reasons for this.

So, professionals who had experience solving the VAZ 2109 problem with carburetor engine It stalls at idle and found several reasons and ways to solve them.

Causes and solutions

When the VAZ 2109 carburetor stalls at idle, that is, when your foot is on the gas pedal, the car works flawlessly, and as soon as you lower it, it stalls, you should look for the cause in the idle speed solenoid valve. To find the reason, you need to understand the meaning of the machine. Thus, the carburetor of the car has an idle system, which consists of a fuel channel with a nozzle, an air channel and a solenoid valve. When the car is idling, fuel moves through a special idle passage into the engine. To ensure that the car operates at idle speed, there are holes on the nozzle.

What kind of malfunction causes the idle speed to disappear?

There may be two reasons:

Problems with fuel supply at idle.
There is an air leak in the system, which disrupts the optimal proportion of air and gasoline in the combustible mixture.

In the first case, the responsibility falls on the idle air solenoid valve. If it malfunctions, fuel will not be able to flow into the engine.

To eliminate the cause, you should remove air filter, from which the cover is then removed. After this, a mini service check is carried out. With the ignition on, remove and place the chip on the valve. The serviceability of the coil is indicated by characteristic clicks that are heard during manipulations. But to be completely sure of serviceability, you should unscrew the valve. To do this, use key No. 13. Then remove the jet and check for contamination. Blowing air through your mouth, see if it passes through it normally. After such a check, you need to close the hole in the EAC (hereinafter the idle speed solenoid valve) with your finger and turn on the ignition. This procedure will blow out any debris that has accumulated in front of the fuel jet, if there is any there.

You should also check the integrity of the rubber seal. If there is damage, deformation or a loose fit, air will be sucked in, which is why the machine will malfunction when idling.

If there is no characteristic click when removing and putting on the chip, then you should check whether there is voltage. If it is missing, you should check the carburetor throttle economizer.

If there is voltage, but there is nothing to replace the valve with (the breakdown occurred on the road), then you can take emergency measures that will allow you to complete the route. To do this, you need to remove the nozzle and break off the plastic needle and put the nozzle in place. In this case, there is no need to put a wire on the EPHH.

If all the manipulations carried out did not help eliminate the malfunction, then the problem lies in air leaks, which are not so easy to detect.

In this case, the procedure is as follows:

You should check the tightness of the carburetor cover, as well as the serviceability of the paper gasket between them.
Check all hoses for damage and cracks.
Check for a plug on the tube located at the rear of the carburetor. If it is missing, make sure that air is not sucked in. To do this, you just need to put your finger on it. If an air intake is detected, then the car is turned off and a bolt is screwed onto a tube of the appropriate diameter, and the other end is put on the carburetor outlet.

It is known that when air leaks, this is one of the most common reasons. As you can see, the faults that cause the VAZ 2109 carburetor to stall while driving , You can find it yourself, even if you don’t have special skills. And most importantly, you can also eliminate them yourself.

Since the purchase of the 99 (1.5 liters, 68 hp, Solex carburetor (21083), 2000 onwards) the same problem has been observed - the car pulled poorly during dynamic driving - when high speed and a significant load on the transmission (for example, during long climbs), the valves began to “burrow” (knock). There was a feeling that the engine was reaching its limit.

2 times in a year the car started up with the following symptoms: it starts at half a turn, you turn on first, you start to move away and the engine suddenly stalls. Because I didn’t really understand the carburetor yet - the first time I left it as a last resort, but in the meantime, in order to determine the cause, I successively changed the fuel pump, fuel pump rod, spark plugs, wires, slider - nothing helped. Then I removed the air filter housing, checked the throttle adjustment, whether the accelerator was spraying - everything was ok. I took off the carburetor cover and lifted it and found no dirt in the float chambers. After that, I put everything back together and the car drove off as if nothing had happened, although it still didn’t pull very well.
The second time happened right in the forest. On the way to the forest, the car pulled poorly; when the gas pedal was released, the dynamics temporarily (2-3 seconds) improved, i.e. You let off the gas and the car goes faster. Well, how to drive home - the old song - it starts up clearly, but when driving - it immediately stalls. Moreover, it does not twitch, does not choke, but stalls immediately.
From the moment I bought the car I carried a carburetor repair kit with me. By some inspiration, I decided to change the membrane of the power mode economizer - it was just that the membrane was the first one that came into my hand when I took out the repair kit (although in theory, I wanted to change the membrane of the accelerator pump). I changed the membrane (the old one looked intact and quite functional), and voila - it was as if the machine had been replaced. The dynamics have improved significantly. Finally, the pleasure of driving such a wonderful car as the VAZ 2109 has returned - after all, the “chisel” is a fairly balanced and dynamic car with a precise and fairly light steering wheel, simple and understandable like an AK-47. The knocking of the valves disappeared, which made me very happy, otherwise I was already preparing for the “overhaul”.
Naturally, as soon as I found myself in the immediate vicinity of a spare parts store, I immediately purchased a power mode economizer membrane for my machine “first aid kit.”
In general, if you have similar symptoms (the car starts easily, but refuses to move and immediately stalls), or the engine dynamics are upset and valve knocking is regularly heard under load, change the economizer membrane (issue price is 50 rubles).
P.S. I decided to note this for myself on the site, because... when trying to find a solution to the problem, when I first got up, in fact, I couldn’t find anything other than “look at the carburetor” or “go to the carburetor guy” on the forums of “vazovodov”. Although I tried different search phrases: “VAZ 2109 carburetor stalls when moving”, “VAZ 2109 carburetor stalls under load”, “VAZ 2109 carburetor valves knock when loaded”, “VAZ carburetor stalls”, “VAZ 21083 carburetor stalls”, “VAZ 2109” carburetor problem." And the carburetor, not the injector, will sooner or later pose a problem again - so you won’t run into specialists. In addition, in Last year life increasingly hints that no one can do better than themselves, even for a lot of money. As one of my good friends (Vital, hello) said, “this is mechanics - we’ll fix it right now!!!”

Sometimes such a nuisance happens on the way, the driver finds himself in a situation where the engine of a VAZ 2109 stalls in the middle of the road and it is impossible to start the car further. The most interesting thing in such a situation is that there were no traces of any signs warning (foreshadowing) these problems, the car drove as usual, there was no “sneezing” or “shooting in the muffler.”
Since the problem is common, our instructions will tell you what to do in a situation such as a sudden stop of the engine and poor starting. We will consider in detail all the main reasons that cause the engine to stop at idle and while driving.
And also the reasons why it does not start when warm and how to solve this kind of problem.

Engine stalls at idle

On a VAZ 2109 the engine stalls at idle for the following reasons:

The most common of them is -, on which they directly depend idle speed motor

Checking it is quite simple. When the car does not start due to rotation of the starter, then also work with the gas pedal, the engine should start
In the case when the speed immediately begins to fluctuate, after removing your foot from the gas pedal, 99% out of a hundred, that the reason lies precisely in the regulator, so the price of the issue here is ridiculous
The solution is simple - replacing the regulator, this takes any VAZ owner a minimum amount of time
The second most likely reason why the VAZ 2109 engine stalls when idling is a problem with opening the throttle valve
The cure for such a “disease” is trivial - clean the throttle valve
When cleaning the damper does not solve the problem, suspicion falls on a malfunction; when it is faulty, the engine will also stall at idle
We solve the problem by replacing the TPS, this procedure is not difficult and can be easily done with your own hands

The engine stalls while driving

It’s a fairly common case that the engine stalls while driving, suddenly and for some unknown reason.
Therefore, below we list the problems in which the engine stalls on a VAZ 21093, and ways to eliminate them:

Check the fuel level in the tank visually or with a dipstick, do not rely only on the sensor
Refueling, that's the solution
When there is fuel in the tank - the first and most obvious one is low-quality fuel, this is where you should start searching when your engine suddenly stalls while driving
You will be incredibly “lucky” and the engine starts to stall almost immediately after refueling, then the reason is definitely fuel
Eliminated by draining fuel from fuel system, tank, replacing the filter and refueling with new fuel (at another gas station)
The next suspects are the spark plugs, right after the fuel of course.
Everything is clear here too - we unscrew the spark plugs, inspect and check the condition, replace them if necessary

A clogged fuel filter also causes interruptions in the supply of gasoline, as a result of which you accelerate and the engine stalls.
Troubleshooting

When everything is in order with the fuel filter, check it (many car owners for some reason forget to check it periodically)
If the filter is clogged, then air does not enter the combustion chambers, therefore, the combustible mixture in the cylinders turns out to be over-rich in fuel and the spark plugs turn out to be flooded. In addition, due to lack of air, the engine begins to “choke”, its power drops, and the process internal combustion weakens in the cylinders, the engine will eventually stall
Replacing the air filter solves this problem (at worst, blow out the filter element with a hand or foot pump, so you can get to the nearest store)

Another suspected unit is the fuel pump. When there are problems with it, the car will stall or not start at all.
Solves the problem by repairing or complete replacement fuel pump (photo below)

The battery in the case when the engine suddenly stalled on a VAZ 2109 is also no exception
Oxidized battery terminals or poor contact can also cause the engine to stop unexpectedly.
Be sure to check the battery terminals, clean them if necessary or replace the battery

If the engine stalls while driving and does not start again, then the cause can be sought in the electric generator
When the electric generator stops working, the car's network begins to be powered entirely by the battery, and it will not last long (even if new and fully charged)
On and at work in cars, this is not displayed in any way until the battery charge runs out
The situation will be corrected by repairing or replacing the electric generator and charging the battery (you can replace the battery to get to the nearest service station, if you have something)

In modern fuel-injected cars, the reasons often lie in various sensors
However, if you do not understand this, and all the components listed above are working normally, and everything is in order with the fuel, it is better to turn to professionals at a service station than to mess up the electronics by tinkering at random

Why does a warm engine stall?

There are situations when the engine stalls when it is already warm.
The most likely cause is a problem with the carburetor:

As the car moves, a flow of air passes through the carburetor, due to which the carburetor is thoroughly cooled, and the gasoline passing through it is also cooled.
As a result, the carburetor temperature is much lower than the engine temperature.
Because of this, problems arise when, after a long drive, you turn off the engine and stop, the carburetor at this moment begins to quickly heat up from the engine body
Gasoline in the carburetor chamber begins to evaporate under the influence of temperature, filling voids such as the air filter, the carburetor itself and the intake manifold with vapor.
In this case, air pockets appear and fuel disappears from the float chamber.
Solving the problem is very simple - press the gas pedal halfway several times and start the engine again
With these actions you will release excess vapors and combine the supersaturated combustible mixture
It should be noted separately that similar problems arise in fuel pump or fuel line
As a rule, this happens in hot weather; due to the evaporation of gasoline, air pockets appear in the system or pump, which prevent gasoline from entering the carburetor
You can fix the problem with the pump by dousing it cold water or cover with a wet cloth

Second possible reason When a warm engine stalls, there is a problem with the starter:

Check if the starter turns the engine when you start it, or just clicks, or even does not respond at all.
If our worst fears are confirmed, the starter does not turn - we need to find the reason
When you're on the road, checking usually comes down to visual inspection and checking power wires
You can start the car without a starter, you need help to push your car
If you get home, remove and fully check the starter
If the starter is faulty, then repair or replacement is needed.
Another reason when a warm engine does not start is a dead battery, the solution has already been described above

When the engine does not start due to water ingress

This problem most often occurs during rain or driving through a puddle:

It turns out that water gets on devices and wires
You'll have to wait until the water evaporates
For the future, it is recommended to insulate the ignition coil and distributor cover

The engine stalls on an incline

What to do if the engine stalls on an incline:

Check the fuel level, it may need to be topped up; when driving on an incline, the fuel flowed to the side and the fuel pick-up stopped reaching
When the tank is full of gasoline, open the cap on the carburetor and drain the gasoline that got there due to the car being skewed
You will need a syringe or a special bulb

Have you forgotten anything!? Then that's all, I hope our article was useful to you in solving the problem and problems in the future. If the description is not enough, watch the video.

Recently I encountered the following problem: VAZ 2109 stopped idling. The car starts on choke and runs. Everything is fine, you can drive, but as soon as you remove the choke and take your foot off the gas pedal, the VAZ 2109 stalls. Of course, the car is running, but it is very difficult, especially at traffic lights when driving around the city, when you constantly need to either accelerate or slow down and drive without idling. When the car warms up to , it may not stall at idle, but shake terribly at idle, the engine speed is about 500-600 rpm. We urgently need to restore the normal idle operation of the VAZ 2109, let's look at how.
There are many articles on the Internet explaining the reason why the idle speed on the VAZ 2109 does not work. 90% of such articles only consider manipulations with. Indeed, problems with the valve very often cause the idle speed to disappear on the VAZ 2109, but there are other reasons. I’m sharing my experience because I myself spent many hours searching for normal material, but I only came across hundreds of articles that dealt with EPHH in one go.
So, let's go in order: your VAZ 2109 has lost idle speed, with the gas pedal pressed the car works, as soon as you release it it stalls. The reason for this phenomenon is as follows. The carburetor of the VAZ 2109 car has a special idle system: an idle fuel channel with a jet, an idle air channel and a solenoid valve. When the car is idling, the combustible mixture enters the engine through the idle passage. The throttle valve is closed, and therefore the vacuum in the engine is huge and it sucks the combustible mixture into the engine through the idle channel. The fuel and air nozzles have special holes of a certain diameter, which are selected for stable engine operation at idle. Why does the idle speed disappear?
It's simple: either No fuel flows through the idle fuel channel, or somewhere there is an air leak in the system and the incorrect gasoline/air ratio in the combustible mixture is maintained.
The idle speed solenoid valve (hereinafter referred to as ESV) is responsible for the fuel supply. If the valve does not work, fuel will not flow into the space at idle. throttle valve carburetor

VAZ engine

Engine stalls at idle

On a VAZ 2109 the engine stalls at idle for the following reasons:

Idle speed sensor (regulator)

Checking it is quite simple. When the car does not start, due to rotation...

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The VAZ 2109 car is equipped with two types of engine power systems - an injector and a carburetor. As is known, carburetor system, due to its heavy design, is more often susceptible to any malfunctions that affect the driving and technical performance of the car. Therefore, in this article we will consider the carburetor type of power supply.

Causes of the problem

Quite often, VAZ 2109 owners are faced with a problem when the carburetor does not hold speed while idling, and the engine simply stalls. There can be many reasons, and they are all united by a number of characteristic features.

The first reason is a clogged idle jet. Even though the fuel supply system has 2 filters (coarse and fine cleaning), even one speck may be enough to clog the nozzle.

fine filter

Also, the fine filter itself may become clogged. This often happens when the filter was not changed on time...

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Does your VAZ 2109 constantly stall at idle? Everything can be solved - fix it yourself. There may be several reasons that lead to a situation where the VAZ 2109 stalls at idle. The most common ones are a clogged fine fuel filter or jet, as well as a malfunction in the speed control system on the carburetor.

All reasons relate to easily repairable breakdowns on our own, in a garage or in a parking lot.

The 2109 also stalls at idle due to insufficient time to warm up the engine, but experienced drivers do not have this problem. Therefore, it is worth concentrating efforts to find defects in two directions - checking the patency of the fuel supply line and adjusting the carburetor for idle mode.

Fuel line

Stable operation of the carburetor in idle mode is controlled by a jet. If the nozzle malfunctions, it must be unscrewed and purged with air under pressure, thereby surprising the particles...

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Probably every happy owner of a copy domestic auto industry, at least once in his practice he encountered a problem when his car stalled while driving. This unfortunate misunderstanding can overshadow the anticipation of a carefree weekend, or have an extremely negative impact on your career if you are in a hurry to get to work, where a strict boss is waiting for you.

There may be several reasons for a breakdown. The car enthusiast’s task is to identify it and try to eliminate it in “camping” conditions.

Reason 1 – interruptions in fuel supply.

If your car has a fine filter, it must be changed regularly and, most importantly, in a timely manner. A filter clogged with sand can cause a lot of trouble. If this is the reason, then simply remove the filter and connect the gas line directly.

Leaky connection of fuel hoses allowing air leaks. If the edges of old hoses become cracked, they need to be cut off and all clamps tightened after installation.

Reason 2 –...

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VAZ 2114 stalls at idle

How this happens Causes Idle floating speed on the carburetor

The “fourteenth” model from the domestic automaker AvtoVAZ gained enormous popularity in its time due to its reliability, workmanship, responsiveness and agility of the power unit.

Of course, this car cannot be called ideal. Therefore, problems may arise from time to time. It is not uncommon for the rpm to fluctuate at idle. Such phenomena irritate the driver and lead to unpleasant scenarios on the road. For example, at any moment the engine may simply stall.

It is unlikely that you will be able to solve the problem for a long time by pressing the accelerator pedal in order to maintain speed. Therefore, more drastic actions need to be taken.

How does this happen

If the car is running normally, all you need to do is start it and wait until the engine warms up to the optimal temperature. Tachometer indicator in...

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VAZ 2109 21099 2108 carburetor stalls at idle. Reasons, how to fix it.

Problems and solutions

Quite a common problem carburetor cars VAZ 2109 21099 2108, the car does not hold idle speed, stalls. The reason is most likely in the idle speed solenoid valve or in a speck that has gotten into the carburetor; you need to check it; to do this, remove the air filter. Cleaning the carburetor to remove debris did not help.

Video example, reasons, how to solve:

As you can see, the cause is a malfunction of the idle air valve; a quick (temporary) repair is indicated; we pull out the jet and break off the needle. Everything worked.

Comments to...

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The engine stalls at idle speed VAZ-2109 2108

Does the engine of your VAZ-2109 or VAZ-2108 stall at idle?

There's nothing wrong with that. We will tell you what to do in this situation when the engine does not idle. Of course, theoretically, there can be many reasons when the engine stalls at idle. For example, the carburetor solenoid valve may fail, or the carburetor solenoid valve control unit may burn out, or there may also be faults in the electrical wiring. But more often than not, everything turns out to be banally simple. Nothing burned out or failed, but the jet that opens the solenoid valve was simply clogged.

It would seem how this could happen, because an additional fine fuel filter is installed in front of the carburetor, and the carburetor also has a gasoline filter. Debris can get through the air filter if it is not installed correctly and there are...

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Recently I encountered the following problem: the VAZ 2109 carburetor stopped working at idle. The car starts on choke and runs. Everything is fine, you can drive, but as soon as you remove the choke and take your foot off the gas pedal, the VAZ 2109 stalls. Of course, the car is running, but it is very difficult, especially at traffic lights when driving around the city, when you constantly need to either accelerate or slow down and drive without idling. When the car warms up to operating temperature, it may not stall at idle, but shake terribly at idle, the engine speed being about 500-600 rpm. We urgently need to restore the normal idle operation of the VAZ 2109, let's look at how.
There are many articles on the Internet explaining the reason why the idle speed on the VAZ 2109 does not work. 90% of such articles only consider manipulations with the idle speed solenoid valve. Indeed, problems with the valve very often cause the idle speed to disappear on the VAZ 2109, but there are also...

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Sooner or later, almost any driver will definitely encounter such a problem. When the idle speed fluctuates, it is quite difficult to operate the car. At a traffic light, it may stall or fail on a descent using neutral gear. From time to time you have to “help” the engine by pressing the gas pedal to prevent the car from stalling. The tachometer needle now and then shows different revolutions (from 500 to 1200). In addition, engine shaking bothers the driver and passengers, and low speed significantly reduces engine life. Today you will learn about the most common causes of unstable engine idling and ways to eliminate this problem.

A successful solution to this difficult problem is absolutely impossible without making a correct “diagnosis”, and, therefore, the car enthusiast should be well aware of the full list of “symptoms” indicating incorrect carburetor operation:

Independent drop and rise in engine speed....

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VAZ 2109 stalls at idle. What to do?

Today I encountered this problem. Approaching a traffic light and shifting into neutral, the car began to stall. I had never encountered this before, so at first I was confused, but good friends helped. And so, the car increased speed It works fine, but as soon as you go to idle it starts to stall. What is the problem and how to deal with it?

There may be many reasons, as they explained to me, BUT! 99% of these types of problems happen due to the fault of one small mechanism called the Regulator Idle move(RHH). This mechanism is an electric motor, is inserted into the carburetor and performs the same function, i.e. regulates idle speed.

Checking its performance is quite simple. We unscrew it (with the ignition off) with a key set to 14, then turn on the ignition and touch the end of its body to the metal parts of the engine, and you should hear characteristic clicks. If they are not there, then he came to...

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