Vaz 2109 carburetor stalls at will. The car engine stalls while driving. How does this happen
The VAZ 2109 car is equipped with two types of engine power system - an injector and a carburetor. As you know, the carburetor system, due to its heavy construction, is more often subject to any malfunctions that affect the driving and technical qualities of the car. Therefore, in this article, we will consider exactly the carburetor type of food.
Quite often, the owners of the VAZ 2109 are faced with such a problem when the carburetor does not keep speed during idle move and the motor will just stall. There can be many reasons, and all of them are united by a number of characteristic features.
The first reason is a clogged idle jet. Even though there are 2 filters in the fuel supply system (coarse and fine), even one mote may be enough to clog the jet.
Also, the fine filter itself may become clogged. This often happens when the filter has not been replaced with a new one in time. Less commonly, there are failures in the idle system.
There is no difference between the symptoms, for any of the causes of the problem, at all. It is possible to determine what exactly needs to be cleaned or changed only with the help of a visual inspection, or diagnostics.
Also, sometimes the speed not only disappears completely, but also floats. At the same time, the VAZ 2109 car does not stall. In this case, to the above reasons, one should add: a faulty solenoid valve, or an idle speed sensor.
Troubleshooting
In order to fix this problem, you need to determine its culprit. After you have located the place where the problem occurred, you can begin preparations for the repair work. First of all, check how well the carburetor is set up. To do this, tighten the quality screw and the quantity screw until it stops, and then unscrew it as indicated in the carburetor factory settings (often, the carburetor settings are: quality screw - 2.5 turns, quantity - 4 turns). If there are no changes and the engine still does not hold idling, or even stalls, then you need to look for the cause, choosing from the above.
To determine the cause, the carburetor of the VAZ 2109 car will need to be disassembled. Having removed its upper part, a float chamber will open in front of you. Check the level of gasoline in it. It should be about 25 mm. If everything is in order with the level, then we will go directly to the jets.
The idle jet located in the float chamber must be removed and checked for debris or mote. If debris was found in the jet hole, then it must be blown out and washed with gasoline. If, however, there is no debris in the hole, then we continue to look for the cause further.
We examined the carburetor, now we can move on to the fine filter. Look at the condition of the gasoline in the filter sump. If there is no precipitation at the bottom, the filter is still in good condition. If, however, there are at least some particles at the bottom, it must be urgently replaced.
After you have cleaned the carburetor and changed the fine filter, start the VAZ 2109 car and check its operation at idle. If the RPMs are still floating, or the engine stalls, then the idle speed sensor may be the cause.
You can check the sensor in the following way: disconnect the wires from it, and check with a voltmeter. Negative wire, put on the ground, and plus - to the block connector. We turn on the ignition, and follow the readings of the device. The sensor should output 12 volts. If there is no such current strength, then the sensor is most likely faulty.
If, after the procedure, it turns out that the sensor is in a normal state, but there are still no changes (the revolutions float and the engine stalls), then the last option remains - the solenoid valve. It is quite difficult to check it, therefore, it is easier to put in a new one.
Now, your VAZ 2109 car should work stably, both at idle and while driving. If, however, the engine still stalls, although the speed no longer floats, then the reason is much more serious, and most likely, special diagnostics and specialist intervention will be required.
VAZ engine
Sometimes such a nuisance happens on the way, the driver finds himself in a situation where the VAZ 2109 engine stalls in the middle of the road and it is impossible to start the car further. The most interesting thing in such a situation was that there were no slightest signs warning (foreshadowing) these problems, the car was running as usual, there was no “sneezing” or “shooting in the silencer” was heard.
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 a bad start. We will consider in detail all the main reasons that cause the engine to stop idling and in motion.
As well as the reasons why it does not start in a warm state and how to solve such problems.
Engine stalls at idle
On the VAZ 2109, the engine stalls at idle for the following reasons:
Idle speed sensor (regulator)
Checking it is easy enough. When the car won't start, from spinning...
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The VAZ 2109 car is equipped with two types of engine power system - an injector and a carburetor. As you know, the carburetor system, due to its heavy construction, is more often subject to any malfunctions that affect the driving and technical qualities of the car. Therefore, in this article, we will consider exactly the carburetor type of food.
Causes of the problem
Quite often, the owners of the VAZ 2109 are faced with such a problem when the carburetor does not keep speed during idling, and the engine simply stalls. There can be many reasons, and all of them are united by a number of characteristic features.
The first reason is a clogged idle jet. Even though there are 2 filters in the fuel supply system (coarse and fine), even one mote may be enough to clog the jet.
fine filter
Also, the fine filter itself may become clogged. This often happens when the filter has not been changed in time ...
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VAZ 2109 constantly stalls at idle? Everything is solved - fix it yourself There may be several reasons that lead to a situation where the VAZ 2109 stalls at idle. The most common are such as clogging of the fuel fine filter or jet, as well as a failure in the speed control system on the carburetor.
All causes are easily repairable breakdowns. on their own, in the garage or in the parking lot.
2109 stalls at idle also due to insufficient time to warm up the engine, but experienced drivers do not have such a problem. Therefore, it is worth concentrating efforts to find defects in two directions - checking the patency of the fuel supply line and setting the carburetor for idling.
fuel line
Stable operation of the carburetor in idle mode is controlled by a jet. In the event of a malfunction in the functioning of the jet, it must be unscrewed and blown with air under pressure, thereby surprising the particles ...
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Probably, every happy owner of copies of the domestic auto industry, at least once in his practice, faced a problem when his car stalled on the go. 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 work, where a strict boss is waiting for you.
There may be several reasons for the breakdown. The task of the motorist is to determine it and try to eliminate it in "marching" conditions.
Reason 1 - Interruptions in the supply of fuel.
If a fine filter is installed in your car, then 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 that allow air leakage. If the edges of the old hoses are cracked, they must be cut off and, after installation, tighten all the clamps.
Reason 2 -...
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VAZ 2114 stalls at idle
How it happens Causes Idling floating speed on the carburetor
The "fourteenth" model from the domestic automaker AvtoVAZ won immense popularity at one time due to its reliability, workmanship, responsiveness and agility of the power unit.
Of course, this car can not be called ideal. This is why problems can arise from time to time. It is not uncommon for idle speeds to float. Such phenomena irritate the driver and lead to unpleasant scenarios on the road. For example, at any moment the engine can 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. That is why more drastic actions need to be taken.
How does this happen
If the car is running normally, you just need to start it and wait for the engine to warm up to optimal temperature. Tachometer pointer in...
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VAZ 2109 21099 2108 carburetor stalls at idle. Reasons to fix.
Problems and Solutions
A fairly common problem of VAZ 2109 21099 2108 carburetor cars, the car does not keep idle, stalls. The reason is most likely in the idle solenoid valve or in the mote that got into the carburetor, you need to check it, for this we remove air filter. Cleaning the carburetor did not help.
Video example, reasons, how to solve:
As you could make sure the cause is a malfunction of the idle speed solenoid valve, its quick (temporary) repair is shown, we pull out the jet and break off the needle. Everything worked.
Comments on...
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The engine stalls at idle VAZ-2109 2108
Does the engine of your VAZ-2109 or VAZ-2108 car stall at idle?
There is nothing terrible here. We will tell you what to do in this situation, when the engine does not keep 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, there may also be malfunctions in the electrical wiring. But more often than not, everything turns out to be tritely simple. Nothing burned out or failed, but the jet that opens the solenoid valve was simply clogged.
It would seem how this can happen, because an additional fine fuel filter is installed in front of the carburetor, and the carburetor also has a gasoline filter. Mote can enter through the air filter if it is installed incorrectly and there are...
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Recently I encountered such a problem: the VAZ 2109 carburetor stopped idling. The car starts up and runs. Everything is fine, you can drive, but as soon as you remove the suction and take your foot off the gas pedal, the VAZ 2109 stalls. Of course, the car is on the move, but it is very difficult, especially at traffic lights when driving around the city, when you constantly need to either accelerate or slow down to 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 is about 500-600 rpm. We urgently need to restore normal idling VAZ 2109, let's look at how.
There are many articles on the Internet explaining the reason why the idle speed does not work on the VAZ 2109. 90% of such articles consider only manipulations with the idle speed solenoid valve. Indeed, problems with the valve are very often the cause of the loss of idling on the VAZ 2109, but there are also ...
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Sooner or later, almost any driver is bound to face such a problem. When the idle speed floats, it is quite difficult to operate the car. At a traffic light, it can stall or let down on the descent using neutral gear. Periodically, you have to "help" the engine by pressing the gas pedal so that the car does not stall. The tachometer needle now and then shows different speeds (from 500 to 1200). In addition, engine shaking bothers the driver and passengers, and a low number of revolutions significantly reduces the life of the motor. Today you will learn about the most common reasons unstable work engine idling and how to fix this problem.
A successful solution to this difficult problem is absolutely impossible without making the correct “diagnosis”, and, therefore, the motorist must be well aware of the full list of “symptoms” indicating the incorrect operation of the carburetor:
Self-decreasing and rising engine speed ....
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VAZ 2109 stalls at idle. What to do?
Today I faced such a problem. When approaching a traffic light and shifting into neutral, the car began to stall. I didn’t encounter this before, so at first I was confused, but good friends helped. And so, the car at high speeds works fine, but as soon as you switch to idle, it starts to stall. What is the problem and how to fight?
The reasons, as explained to me, can be many, BUT! 99% of these kinds of problems are due to one small mechanism called the Idle Air Control (IAC). This mechanism is an electric motor, inserted into the carburetor and performs the function of the same name, i.e. regulates idle.
Checking its performance is quite simple. We unscrew it (with the ignition off), with a 14 key, then turn on the ignition and touch the end of its body to the metal parts of the engine, while you should hear characteristic clicks. If they are not, then he came to ...
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There may be several reasons that lead to a situation where the VAZ 2109 stalls at idle. The most common are such as clogging of the fuel fine filter or jet, as well as a failure in the speed control system on the carburetor.
All causes relate to easily repaired breakdowns on their own, in the garage or in the parking lot.
2109 stalls at idle also due to insufficient timehowever, experienced drivers do not have such a problem. Therefore, it is worth concentrating efforts to find defects in two directions - checking the patency of the fuel supply line and setting the carburetor for idling.
fuel line
Stable operation of the carburetor in idle mode is controlled by a jet. If the jet malfunctions, it must be unscrewed and blown with air under pressure, thereby removing dirt particles. In case of serious blockage, you can resort to flushing with a diluted mixture of gasoline or acetone.On some VAZ models 2109 install valve jets, which has electromagnetic control. Such a valve regulates the supply of the fuel composition to the jet. During normal operation, fuel supply stops at engine speeds above 2100 rpm. Valve re-opens when RPM drops up to 1900 rpm.
It is possible to diagnose its breakdown only with the use of special equipment at the service station. However, there is also a "folk" method of verification. To do this, with the engine running, it is enough to quickly disconnect and connect the power supply wire on the valve.
At the moment of such manipulation with the wire in the valve, you can hear a click, which will indicate its good condition.Fine filter The fuel mixture is installed on the fuel line in front of the pump for supplying gasoline to the carburetor. According to the regulations, it must be replaced by "2109" every 15,000 km, but this. Uneven engine operation (jerks) at idle and high speeds can mean its clogging.
In this case, it must be replaced, purge may be effective only when it is necessary to drive to a car dealership to buy a new filter.
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Carburetor setting
On the VAZ 2109, a domestic design and assembly was installed. To adjust the supply of the fuel mixture to the engine, you will need a screwdriver with a long sting and a portable device for measuring engine speed.
There are two adjusting screws on the carburetor, one is responsible for the quality, and the other screw for the amount of fuel supplied.
The setting conditions for starting the adjustment procedure are:
- adjusted ignition system;
- engine warmed up to 90°C. (winter 85°C)
- the screw responsible for the volume of fuel is tightened until the engine stalls;
- for the same screw, two full turns are made in reverse side and start the engine;
- if the engine does not start, the screw makes another full turn;
- on the tachometer, the number of revolutions should be in the area of \u200b\u200bthe mark of 1020 rpm;
- having achieved the necessary tachometer reading, you can begin to manipulate the screw responsible for enriching the mixture;
- this screw must be rotated until the speed reaches 850 rpm;
Note: drivers who are not accustomed to long engine warm-ups should idle at around 900 rpm, since 850 rpm is optimal for a well-warmed engine.
The above manipulations with setting the carburetor and cleaning the fuel supply line will be effective if the engine stalls at idle not regularly. With the constant occurrence of an idling problem, in a service station.
List of reasons for stopping the carburetor engine of VAZ 2108, 2109, 21099, 2105, 2107 cars and their modifications while driving (on the go). This problem may occur due to malfunctions in various engine systems: fuel, ignition, etc.
List of the main faults that lead to the fact that the car engine stalls on the go
- The fuel tank has run out.
In one case, the readings of the fuel level sensor may simply be incorrect (it is out of order). In another case, even if the sensor indicates that there is some fuel left in the tank, the fuel pickup in such a situation draws water, dirt, sediments and deposits from the bottom of the gas tank. The engine will not work on such a mixture and will stall even on the move, even at idle. It is recommended, in order to avoid the occurrence of such a problem, for prevention, periodically and.
- Breakage or clogging of the fuel line.
Loose metal and rubber fuel lines can break and fray over time. This will cause the engine to leak or cut fuel, causing it to stall while the vehicle is in motion. As a preventive measure for the occurrence of such malfunctions, it is recommended to periodically visually inspect the fuel lines throughout their entire length. It is also worth focusing on the persistent smell of gasoline that occurs in this case.
In addition, as described above, any dirt and water can be drawn into the fuel lines from the tank. In the cold season, the presence of water in the fuel lines can cause them to freeze.
fuel hoses, the breakage or damage of which is most dangerous, since fuel can get on the hot manifold and cause a fire, the condition of these hoses must be constantly monitored - Disconnection of the central high voltage wire (armored wire).
A loose center high voltage wire from the ignition coil to the distributor cap can come off (jump off) while the vehicle is in motion, causing the spark to disappear and the engine to stop. In some cases, this situation is accompanied by a pop in the muffler. It is necessary to visually verify the integrity of the central wire and the tightness of its lugs in the sockets of the coil and cover.
- Wire break in the low voltage circuit.
First of all, these are low-voltage wires of the ignition system (going to the coil, distributor, other devices of the ignition system, plugs of the fuse mounting block). Secondly, it is a “mass” wire connecting the battery and the body (“ground”) of the car. Its breakage or loose connection will cause the engine to stop while driving, with the simultaneous disappearance of light in the instrumentation on the panel, the failure of direction indicators, sound signals, etc. wires. To help the scheme of the ignition system and.
- Violation of the angle of the ignition timing.
Sudden destruction of the elements of the ignition distributor (breakage or jamming of the springs of the centrifugal regulator), loosening of the fastening of the elements and their displacement. Loosening the fastening of the distributor itself will lead to a shift in the ignition timing in one direction or another and the engine will stop while driving. Only a visual inspection of the distributor and troubleshooting will help in such a situation, followed by setting the ignition timing (or).
distributor of cars 2108, 2109, 21099 - Breakdown of the capacitor to "mass".
Malfunction for cars VAZ 2105, 2107 with contact system ignition. The capacitor on the distributor can suddenly fail, and the engine will stall on the go. This error is accompanied by The capacitor must be checked and replaced if defective. As a temporary measure, it is recommended to disconnect its wire from the "K" terminal of the breaker and move on. You can also use a horn capacitor. We connect its wire to the “P” terminal of the ignition coil, and the body to “ground”.
- "Sucking" of extraneous air into the power system.
The fuel mixture in this case is very depleted and the engine stalls. A poorly fixed carburetor (air is sucked under its flange) or an intake manifold can lead to this. The malfunction is eliminated by tightening the carburetor and manifold nuts or replacing the gaskets under them. For more information on suction, see
One of the problems that a motorist who owns a domestic VAZ 2109 car may encounter is that the carburetor stalls on the go. There are many articles on this topic, but real experience will solve the problem faster, since there are several reasons for this.
So, professionals who had experience in solving the problem of the VAZ 2109 with carbureted engine stalls at idle found several reasons and ways to solve them.
Causes and remedies
When the VAZ 2109 carburetor stalls at idle, that is, when the 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 solenoid valve. To find the cause, you need to understand the meaning of the machine. So, the carburetor of the car has an idle system, which consists of a fuel channel with a jet, an air channel and a solenoid valve. When the car is idling, fuel is transported to the engine through a special idle channel. To ensure the operation of the car at idle, holes are located on the jet.
What kind of malfunction leads to the fact that idling disappears?
There can be two reasons:
- Problems with the flow of fuel at idle.
- The system is leaking air, which violates the optimal proportion of air and gasoline in the combustible mixture.
In the first case, the responsibility lies with the idle solenoid valve. If it fails, fuel will not be able to enter the engine.
To eliminate the cause, remove the air filter, from which the cover is then removed. This is followed by a mini-check. With the ignition on, remove and put the chip on the valve. The characteristic clicks that are heard during the manipulations testify to the health of the coil. But to be completely sure of serviceability, the valve should be unscrewed. To do this, use the key number 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, it is necessary to close the hole in the EPHH with your finger (hereinafter, the idle solenoid valve), turn on the ignition. This procedure will blow out debris that has accumulated in front of the fuel jet, if any.
You should also check the integrity of the sealing gum. 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 if there is tension. If not, the economizer should be checked. throttle valve carburetor.
In the event that there is voltage, but there is nothing to replace the valve (the breakdown happened on the road), then you can take emergency measures that will allow you to complete the route. To do this, remove the jet and break off the plastic needle and put the jet in place. In this case, there is no need to put a wire on the EPHH.
If all the manipulations performed did not help to eliminate the malfunction, then the problem lies in air leakage, which is 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 or cracks.
- Check for a plug on the tube located behind the carburetor. If it is missing, make sure that air is not sucked in. To do this, just stick your finger. If an air suction 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 causes. As you can see, the malfunctions due to which the VAZ 2109 carburetor stalls on the move , you can find yourself, I don’t even have special skills. And most importantly, you can also eliminate them yourself.
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