Lada Granta 8 valve troits when cold

Spark plug

Check the spark plugs first. They are the most common cause. Even if the spark plugs were changed not long ago, still unscrew and inspect.

A properly functioning spark plug does not have black deposits on the electrodes and insulator. The candle body is white, without black stripes or dots. The presence of defects indicates that the spark plug has been struck by a discharge and will no longer work correctly. Carbon deposits interfere with the normal formation of a spark and the engine will fail.

Carbon deposits on the spark plug electrodes are the main cause of combustion in an internal combustion engine.

The second reason is incorrectly selected candles. Buy those recommended by the car manufacturer. Too much or too little clearance can cause one or more cylinders to fail.

Recommended spark plugs for Lifan cars

The main reasons for this malfunction in Kalina

When you find out that the power unit is running rough in the Lada Kalina, this means that out of 4 cylinders in the engine, only 3 are working. Naturally, this indicates a malfunction of the engine, and this manifests itself while driving and strange noises appear. It happens that the engine stalls when cold.

What indicates signs of “triple” in Lada Kalina:

A qualified auto mechanic can identify a problem with an engine by the way it operates, or more specifically, by the sound it makes.

If you see one or more of the above listed signs in your car, then this is a signal for you to completely stop using the car and carry out a comprehensive diagnosis. The above symptoms can be the cause of a wide range of power unit problems that fall under other non-serious faults. So, it is necessary to promptly determine the causes of the problem.

For example, you notice that the candle has turned black. You clean it or replace it, and continue driving the car. However, the cause of the incident has not been identified, and the longer you drive, the more likely the engine will suffer serious damage.

The case when the automatic diagnostic system of the Lada Kalina indicates a malfunction deserves special attention. If you notice that the check engine light is on on the instrument panel, then the best option is to stop. The car should be transported to the service center by tow truck. After all, it is specialists who, under appropriate conditions, will be able to quickly and accurately determine the cause of the signal from the sensors and eliminate the machine malfunction.

When a car owner continues to operate his vehicle, knowing that the engine is running rough, he must understand that this will lead to serious wear and tear on the parts working while driving, this applies to the cylinder, piston and rings. In any case, the same faulty cylinder receives gasoline, which washes away the oil protective layer. As a result of this, if you're lucky, the entire cylinder will have to be replaced, but if things get worse, the entire engine will need to be repaired or replaced.

High voltage wires

Checking high-voltage wires is mandatory when diagnosing an engine when it is tripping. There should be no traces of breakdown on them. Spark plug tips must be clean and free of carbon deposits.

After visually inspecting the spark plugs, check the high-voltage wires. There should be no traces of breakdown: black dots or stripes. Due to the breakdown, the current does not reach the spark plugs. This defect is the next reason for the tripping of an internal combustion engine.

Checking the wires yourself will not cause difficulties. They are tested with a conventional multimeter. It is necessary to measure the resistance of each wire.

Video of checking BB wires

Check the wires with a multimeter. Measure the resistance of each wire. It differs for different car brands, but does not exceed 20 kOhm. Good wires have the same resistance. If one of them shows much less or more, then it is faulty and because of it the power unit is tripping.

Malfunction of the injector or nozzles

The injection engine fails in the following cases:

1. The injector is faulty, but this is very rare.
2. Bad gasoline was poured in or fuel system cleaner was used incorrectly.
3. Clogged injectors.
4. The electrical power supply circuit for the injectors is open or shorted.

Engine diagnostics and a competent motor mechanic will help eliminate such malfunctions. To independently check the injector and nozzles, you need experience and special equipment.

Low compression

Trouble the engine due to insufficient compression in the engine cylinders. The decrease occurs: when the rings are stuck on the pistons, the valves burn out. Some car models allow valve adjustment. Incorrectly set gaps are the cause of tripping of an injection engine.

If you have trouble with the engine and one or more cylinders are not working, do not rush to go for computer diagnostics. A scanner check will detect a misfire, but will not indicate the cause. The cylinder is not working - this is already obvious. Before going to a car service center, check the spark plugs and wires. They are most often to blame for engine trouble.

Other engine and system malfunctions

1. Compression in the engine cylinders is low.
2. The cylinder head gasket is damaged.
3. The engine control system is faulty.
4. The valves of the gas distribution mechanism are burnt out and leaky.
5. The exhaust system is leaking.
6. The valve clearances are not adjusted (8-valve engines only).
7. The hydraulic pushers are faulty.
8. The engine air filter is dirty.
9. Vacuum hose connections are leaking.

Have you encountered power failures or observed unstable engine operation? What was the reason? We solve similar power unit problems in the comments or on the forum. Let us remind you that along with misfires, other engine malfunctions may appear, for example, floating speed.

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As you know, the injection engine has replaced the carburetor engine mainly due to its efficiency, as well as the reduced amount of harmful emissions into the atmosphere. This became possible as a result of flexible adjustment of the operation of the internal combustion engine using the electronic control system of the ECM.

Note that the indicated “check” lights up for various reasons. In this article we will talk about why the check light blinks, the engine stalls, or the power unit is unstable in different modes, and such operation is accompanied by a lit internal combustion engine fault indicator.

Read in this article

Description of signs and causes of engine tripping

Car owners of cars of various models often experience problems with the engine, among them there is such a type of defect as engine tripping (missing). A malfunction in the functioning of one of the four cylinders is what the engine is experiencing.

Only if you have experience and certain knowledge about the internal structure and operating principle of gasoline carburetor and injection internal combustion engines (ICE), can you determine the reason for the malfunction of the engine.

What is engine “triple”? This term appeared due to the four-cylinder design of the internal combustion engine, because when one cylinder fails, three working elements remain. The appearance of six-cylinder and twelve-cylinder engines did not change the existing terminology for defining this defect, contrary to the requirements of the Russian language.

Signs indicating a missing engine

You can find out what is wrong with the engine by examining the following signals:

• increased vibration of the engine - this means that the engine is shaking at idle or at low speeds;
• change in the color of the spark plugs, they become dark, covered with soot and carbon deposits;
• a characteristic exhaust sound indicates that some engine cylinder has lost its function and the engine is running rough;
• the appearance of thick white, black smoke from the exhaust pipe;
• there is not enough strength to accelerate the car;
• increase in gasoline consumption;
• the check blinks, indicating unstable speed;
• increased intermittent shocks during acceleration, as well as during uniform movement.

A certain sound of an altered stroke in a running engine can also be a consequence of the fact that this is causing the engine to throttle.

The symptoms that occur at low speeds, at high speeds and at idle are similar. How to find out the real reason? If the engine revs intensely at high and also at medium speeds, it means that the valves that allow the gap to increase when the engine reaches operating temperature are faulty. If it throttles at low speeds, the valve clearance increases until it warms up, and then restores.

It helps to determine that the engine has started to stall by the presence of changes in the sounds it makes during operation. Failures are most noticeable when a person is positioned near the exhaust pipe.

The presence of any of the listed symptoms indicates problems in one, two or three cylinders. If the engine periodically fails, then ignoring a serious defect will certainly lead to a major overhaul of the car.

Other reasons for unstable engine operation Grants

Floating speeds and tripping are not the only problems associated with the functioning of the Lada Granta engine. There are other situations.

Engine does not develop power

This problem is not relevant if the car is new and is being run-in. Until 5 or 8 thousand kilometers, the engine should not gain maximum power. And for the first 2 thousand kilometers, it is not at all recommended to raise the tachometer needle above the 3000 rpm mark.

It happens that when accelerating a car:

These are signs of low pressure in the fuel system. It is recommended to replace the fuel filter with a new one. The cause may also be low-quality gasoline. The Grant is equipped with an electronic gas pedal - its malfunction can also cause insufficient engine power.

Engine knock

A knocking sound in the engine may occur due to vibration of the crankshaft pulley. There is no point in repairing it; it is better to replace it with a new one. If the cause is a loose timing belt, you can fix the problem by tightening it. A knocking sound in the engine may occur due to a loose flywheel, but this happens quite rarely. Wear of connecting rods, bearings, pistons and crankshaft also leads to a characteristic dull knock. If the problem is with these components, then they require replacement.

Unstable engine operation can occur due to the natural wear and tear of engine parts or improper running-in. In any of the described cases, it is necessary to carry out a comprehensive diagnosis, with the help of which the exact cause can be established and then eliminated. To carry out self-diagnosis, you need a special scanner.

If the engine is misfiring, then it is not recommended to delay solving this problem. Driving with the engine partially working or not working at all is prohibited, as it can lead to more serious malfunctions and expensive (possibly major) repairs of the internal combustion engine.

Source

Causes of cylinder failure

The appearance of missing is caused by the following factors:

• failure to adjust the ignition start;
• air intake in the brake system;
• accumulation of carbon deposits and breakdown of spark plugs;
• the integrity of the electrical wire leading to the spark plugs is broken;
• the appearance of malfunctions in the capacitor;
• violation of the integrity of the intake manifold;
• piston valve wear;
• the piston rings have become unusable;
• failure to adjust the gas distributor valves;
• violation of the integrity of the gaskets in the fuel pump head;
• wear of oil seals;
• adjustments in the carburetor are broken;
• air filter clogged;
• violation of the vacuum membrane of the advance regulator;

Inconsistency between the spark plug sizes and this type of engine can cause serious malfunctions in its operation.

When a cylinder stops functioning, the engine fails, the reasons that caused this defect entail a loss of power of the power unit, an increase in fuel consumption, and a malfunction of all vehicle systems.

How to determine which cylinder has failed

To determine a blocked cylinder, carry out the following steps:

1. Disconnect the ends of the high-voltage wire from each spark plug one by one.
2. Record the change in sounds in the operation of the engine with the spark plugs turned off; the previous sound indicates that the inactive cylinder has been turned off; we can conclude that this particular element has failed.

When disconnecting explosive wires, an electric shock may occur. To avoid injury, it is necessary to use a dielectric material in the form of a rubber mat or a dried wooden platform under your feet. When disconnecting, you need to grab the wire, but not the cap, and you cannot touch the car body.

Why does the engine shake at idle?

If you find that your car’s engine is running rough at idle, that is, only some cylinders are turned on, you need to take the car for diagnostics and try, as soon as possible, to eliminate the cause of the malfunction. If you don’t do this and continue to drive the car, then in the very near future you may encounter even more serious breakdowns, which will cost much more to fix.

It is worth noting separately that the very phrase “engine troits”, today, is no longer absolutely correct, since its meaning is that out of the four cylinders of the engine, only three work. However, no matter how many cylinders a modern car has, the essence of this expression remains clear to all motorists.

Some modern engines even have a special system that, in forced mode, turns off some of the cylinders if there are no maximum loads when driving. This is done to save fuel. And this is considered completely normal, since in this case there will be no shaking, which usually appears on the steering wheel and in the car dealership. However, spontaneous shutdown of cylinders is a serious problem that must be diagnosed and eliminated in a timely manner.

Is the engine in your car shaking?

How to determine that the engine has started to stall? To accurately diagnose this fact, today special tools are used that are found on any modern car.

If you own an older car model, then checking for this malfunction can be done by removing the high-voltage wires from the spark plugs one by one and observing how the engine behaves. As a result, it is easy to identify the reason why the engine idles at idle speed.

The essence of the method: 1) when the wire is disconnected from the spark plug of an idle cylinder, the sound of the engine will not change, the speed will not decrease; this indicates that this cylinder is not working; 2) when the wire is disconnected from the spark plug of a working cylinder, the engine, on the contrary, will begin to sound differently and the speed will decrease.

What are the signs that the engine is starting to stall?

To determine, without special checks, whether your car’s engine has started to stall, you need to know several signs of this breakdown:

Conclusions obtained after diagnostics

When carrying out a thorough diagnosis, special attention must be paid to the appearance of the spark plugs. The presence of the following signs is unacceptable:

• carbon deposits;
• destruction of insulators;
• worn caps;
• failure of explosive wires;
• switch failure;
• The ignition coils have failed.

If an insufficient amount of fuel is poured into the cylinder, it means that the parts and components of the fuel pump are faulty. Increased fuel supply indicates that the fuel injectors are dirty and have become unusable. Impaired settings of the electronic control unit are also the cause of the engine shaking.

Such situations are often observed, as a result of which the engine can also trip:

• air filter contamination;
• throttle valve wear;
• Air flow sensor malfunction.

The lack of engine compression or its low level is the most difficult defect. This type of engine failure can indicate the following facts:

• burnout of pistons;
• valve failure;
• complete wear of the piston rings.

The car owner needs to determine why the engine is stalling and what to do next. It is necessary to seek professional help from the nearest service station, where qualified computer diagnostics of the car’s power unit will be carried out.

Unstable engine operation

If the engine runs unstably and stalls when idling, then there are reasons for this. It is quite possible that we are talking about insufficient pressure in the ramp. We also talk about the difficulties in the functioning of the electronic gas pedal.

In the first case, it is worth checking the pressure regulator. Just keep in mind that in new Lada Granta models this regulator may be located in conjunction with the fuel pump. As for the second situation, the check should concern the electronic part of the car, including the power unit adjustment system.

Air supply problems

The problem may also be that there is an air leak in the system. It may be located on the crankcase ventilation hose that connects the inlet pipe to the brake booster. You should carry out additional tightening of the fastening clamps. And, if the need arises, the hoses must be replaced with new ones.

If the problem concerns violation of valve clearances, then the solution requires contacting a service station.

If you own a Granta with an 8-valve engine, it is worth adjusting the timing valves every twenty thousand kilometers.

Or it could be different. If the air filter is clogged, it will be more difficult for air to get through and an overly rich mixture will flow into the injectors. In this case, diagnostics and replacement of the air filter is necessary.

Spark plug

The problem could be the spark plugs.

And, of course, the reason may relate to a malfunction of the ignition system. We are talking about the source of the problem in the form of spark plugs or individual coils. If you have localized the source of the breakdown, then the faulty part must be replaced. On 16-valve engines, AU17D spark plugs are installed from the factory.

More details in the materials:

An indirect factor that may indicate problems with the spark plugs is increased fuel consumption. However, increased consumption may also appear for a number of other reasons; for more details, see the material: reducing the fuel consumption of a Lada Granta car.

Determining the causes of miss in gas engines

Car owners whose cars run on gas are faced with the problem of the engine tripping; the indicator light begins to flash. If the engine fails on gas, the reason is hidden in the following defects:

1. Failure of gas filters; if necessary, they need to be replaced with new ones.
2. The spark plugs have become unusable.
3. Violation of the integrity of high-voltage wires.
4. Incorrect settings, contamination of gas reducer filters.
5. Wear of rubber gaskets in the gas reducer.
6. Malfunctions in the functioning of gas injectors, leading to an increase in gas consumption and the appearance of engine detonation and tripping; after washing the injectors, measures to eliminate defects, and calibration, the missing goes away.

Vehicle owners should not neglect the alarming symptoms that appear, as they can become sources of major financial and temporary problems. It is necessary to conduct thorough scheduled and extraordinary computer diagnostics of the power unit in order to identify emerging defects in engine operation.