Engine cranks but won't start. The starter turns the motor, but the engine does not start. ICE start. How does this happen

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Turning the ignition key, the driver observes the same picture every time. The indicators light up first. dashboard, indicating the presence of fuel and battery charge. V extreme position the starter turns on and starts turning the crankshaft. To start a serviceable engine, a few revolutions of the crankshaft are enough, but what to do when, when the starter is working, but the car stubbornly does not want to start? The culprit of this situation can be a variety of malfunctions, because the normal operation of the motor is ensured by several automotive systems at once.

ICE start. How does this happen?

car engine works only if several conditions are met:

Enough air-fuel mixture enters the cylinders.
At a certain moment (at the end of the compression stroke), the candle generates a spark of the required power.
The crankshaft and camshaft rotate with strict interaction, ensuring the timely filling of the cylinders with a combustible mixture, the correct functioning of the gas distribution system and the operation of the gasoline pump in carburetor internal combustion engines.

By turning the ignition key, the driver energizes the starter solenoid relay, which turns on his electric motor and ensures engagement with the crankshaft flywheel ring gear. As it rotates, the crankshaft converts angular momentum into reciprocating motion of the pistons and drives the camshaft (or shafts). The latter ensures the timely opening of the valves, due to which the combustion chambers are filled with the fuel mixture at the right time.

The engine power system is responsible for its preparation and delivery. As soon as the piston reaches the top point at the end of the compression stroke, the finely dispersed fuel mixture is ignited by a spark formed on the candle (in diesel units, ignition occurs due to strong air compression). After that, the microexplosion acts on the piston, which moves down and makes the crankshaft rotate - this is how the engine start circuit looks like.

Why does the starter turn normally, but the engine does not catch, does not start?

In half of the cases when the car refuses to start, the starter is to blame. At the same time, the other half falls on situations where the starter regularly rotates the crankshaft, and the engine starts only after repeated attempts or is completely silent. This could be due to a variety of reasons.

Driver inattention or negligence

The notorious human factor can manifest itself in the most unexpected way. For example, a banal lack of fuel or an alarm that blocks the fuel pump. And it also happens that some "well-wisher" scored exhaust pipe, or a negligent driver, turning back, stuck in a pile of soil or a snowdrift. Such reasons do not belong to the category of technical malfunctions, but a lot of nerves can be spoiled.

Technical problems - starter malfunctions

Every little bit experienced driver will distinguish the sound of a starter that regularly rotates the engine, from the useless buzz of its electric motor in the absence of engagement with the flywheel. When starting troubleshooting, you should definitely make sure that the starter is functioning normally, and during its operation there is no extraneous knocks, clicks and crashes.

The starter is considered defective in such cases:

The bendix gear cannot engage with the flywheel ring gear. This manifests itself in a loud metal rattle that appears when the starter is turned on. The reason for this phenomenon is the wear of mating surfaces, chipped teeth, etc. The solution to the problem is to install a new flywheel or crown. The latter can be rotated 180° and thus dispense with the purchase of a new part.
Overrunning clutch or retractor relay stuck. At the same time, the starter motor hums, but it does not make any attempt to start the engine. In some cases, repeated attempts to turn on the starter help, but this only postpones the need for repair or replacement for a while.
Loose crown. A similar malfunction happened on cars at the end of the past - the beginning of this century, including the popular "nines". In this case, the starter engages with the crown and starts to turn it, but it turns on the flywheel with a rattle. Only replacing the latter will help.

Video: Watch everyone who has problems turning on the starter. Helpful advice from an auto electrician.

Problems in the fuel system

Even the most "peppy" battery and a new serviceable starter will not be able to start the car if there are problems with the fuel supply to the cylinders. For this reason, the next thing to check is the engine power system.

1. Fuel pump

For carburetor and diesel engines, this unit is located directly next to the head or cylinder block. Injection power plants equipped with an electric pump, which is installed in fuel tank. Their work is judged by a short buzz that appears after the ignition is turned on. As for the gasoline pumps of carburetor engines, they are mechanically driven by a cam mounted on a camshaft.

Checking the performance of the fuel pump is easy - to do this, remove the hose from the carburetor inlet fitting and lower it into a suitable container. After that, fuel should be pumped up with the manual pumping lever or by turning on the starter. If the result is negative, we check the passage of gasoline through the fuel line and clean the mesh located in top cover pumps. If this does not help, then inspect the membrane and valves of the fuel pump. After replacing damaged and worn parts, the device's performance will be restored.

2.Fuel filters

Along the way the fuel passes from the tank to the engine, there are several filter assemblies - meshes coarse cleaning located on the fuel receiver, in the fuel pump and carburetor, and in addition, paper filters located in the section of the fuel line. The intensity, and even the possibility of supplying fuel to the internal combustion engine, depends on their purity. If you find a blockage, clean or replace the filter elements.

3. Throttle and nozzles

Gasoline ICEs run on fuel mixture, which is prepared in the carburetor or intake manifold (in injection cars). In the first case, the fuel passes through a whole system of channels, jets and sprayers that are in the carburetor. In the second, it is supplied by nozzles according to signals coming from electronic block engine control (ECU).

The air supply is dosed using a throttle valve, which, depending on the design of the engine, can be mechanically or electrically driven. Clean the parts of this assembly and the throttle itself. Also, check if fuel is being supplied to the cylinders. If you are dealing with an injection car, then press the fitting spool located at the bottom of the fuel rail - while gasoline should flow from there under pressure. If the trickle is too weak, then we check the filters, the fuel line and the fuel pump pressure reducing valve.

In carburetor engines, the fuel supply can be judged by sharply opening the throttle - in this case, a portion of fuel will be injected into the diffuser from the sprayer of the accelerator pump. In addition, for gasoline power units, inspect the spark plugs - they should not be dry. Otherwise check up presence of a control signal on atomizers. If everything is in order with this, then you should unscrew the fastening of the ramp and move it away from the manifold in order to inspect the spray nozzles when starting the engine. The absence of fuel streams or their low intensity indicates the need to clean or replace the nozzles.

As for diesel engines, they supply fuel under high pressure, and a much more complex pump (high-pressure fuel pump) and specially designed nozzles are responsible for this. To repair these units, special equipment, so in this case it is better to contact specialists.

Something else useful for you:

Video: Starter buzzes, but the engine does not turn

4. Malfunctions of electronic systems

To check the ignition system, we turn out and remove the candle from one engine cylinder. Having installed a tip of a high-voltage wire on its contact nut, touch the cylinder head with a candle skirt and scroll the engine with a starter. In this case, a powerful spark of purple or blue hue should appear on the contacts. If the spark is too weak (or not at all), then we check the operation of the computer, ignition coils and distributor (in the ICE of the old design).

Other causes of difficult starting when the starter is running

The timing belt is torn, or loose and jumped a few teeth - in this case, the valve timing is knocked down, due to which the engine cannot start. It is enough to replace and set the belt according to the marks, unless such a nuisance ended with a meeting of the pistons with the valves - in this case it will be required overhaul engine.
Crankshaft rotates with a noticeable effort, which can be caused by various mechanical damage to the crank mechanism and the cylinder-piston group. Check if the engine turns over when trying to start it in top gear "under tow" (for manual gearboxes) or rotation by the crankshaft pulley of cars with automatic boxes gear changes. A relatively slight rotation indicates that the cause of the malfunction is hidden elsewhere.
One of the mounted units is jammed, which creates increased resistance to the rotation of the motor shaft. For searching " weak link» it is necessary to loosen and remove the belt, and then try to manually turn the pump, generator, air conditioning compressor or power steering pump. If the breakdown occurred far from the service station, then you can get to the nearest car service only on those cars in which the pump is driven timing belt. On other engines, you can try to connect the crankshaft and coolant pump pulley with something suitable - a rope cut from car camera rubber strip, etc.
Failure of sensors connected to the computer - crankshaft position (DPKV), Hall, etc. Due to their breakdown or malfunction, the engine control unit does not properly regulate the combustible mixture or injects and ignites the fuel at the wrong time .
Sometimes the cause of a failure or incorrect interpretation of the signals of a particular sensor is electromagnetic interference from the starter and other electrical components. In this case, it is difficult to identify the malfunction, so it is possible that you will have to turn to specialists for advice.

Seal

Often, car owners are faced with the fact that when ignited, the starter only clicks, but does not turn, and, as a result, the car does not start. But it happens that the starter turns properly, which is heard by the characteristic sound, but the car still does not start. What to do in such a situation?

Reasons why the car won't start

Any modern car at its core, it represents a kind of symbiosis of numerous components, systems and mechanisms, as a result of which not only its characteristics are improved, but there is also a greater chance of encountering a situation where the car simply does not start. The localization of such problems can be different and, as a result, the causes vary. Among these are:

Lack of gasoline, oil and other automotive fluids;
Discharging the battery and / or the formation of rust (oxide) marks on its marks that prevent the transfer of charge;
Problems with candles, injector (carburetor);
Malfunctions in the electronics system;
Problems at work fuel pump;
Clogged fuel and/or air filters;
Throttle blockage.

In some cases, problems manifest themselves differently - car won't start, starter spins. The reasons for this are usually in the fuel system or ignition system, which is why it is important to immediately diagnose them.

INTERESTING! Some automotive companies undertake the full Maintenance over a specified period of time. So, in case of any breakdown, the owner just needs to call the warranty service center and specialists will immediately arrive to carry out repairs.

The starter turns, but the engine does not start. How to find the reason?

The reason for situations in which engine cranks but won't start there can be several factors, however, in case of such problems, first of all, it is necessary to pay attention to the correct operation of the ignition system and the power supply system, that is, the fuel supply.

IMPORTANT! It is advisable to carry out diagnostics of these systems only in cases where the operation of the starter proceeds without jerks and unnecessary sounds. In this case, the problem, as a rule, lies in the starter itself.

Diagnostics of the ignition system

First of all, you need to unscrew the candle and check for spark. To do this, put on a turned off candle high voltage wire, and her skirt touches the metal part of the engine. If a spark appears during the rotation of the engine, then the candle is serviceable and does not require replacement - that is, the problem lies elsewhere.

INTERESTING! Depending on the type of engine, the absence of a spark indicates problems of various localization. So, problems in an injection car indicate a malfunction of the ignition module, in a carburetor - a malfunction of the ignition coil.

The ignition module, due to the design and execution features, is almost impossible to check on your own, which cannot be said about the coil.

To diagnose the ignition coil, you need to remove the central wire of the distributor cover and bring it to a distance of about 5 mm to the metal part of the engine, excluding any contact. If there is no spark after the engine is cranked by the starter, the coil is out of order.

If the coil is good, you need to perform the last check of the ignition system - remove the cover of the distributor and check it for defects and damage. If the diagnostics of the ignition system did not give the expected result, and the starter still works, but the car does not start, you need to proceed to the next step - diagnostics fuel system.

NOTE! In most cases, problems of this nature lie precisely in the ignition system, so all diagnostic steps should be carried out as carefully as possible.

Fuel system diagnostics

This assembly must be checked sequentially, starting from the fuel pump and ending with the injector (carburetor).

In vehicles with an injector when the ignition is turned on, the sound of the electric fuel pump running should be heard in the cabin. If this sound is not present - the reason is in the pump motor - either it burned out or does not receive voltage. Therefore, first of all, you need to check the pump itself and its safety system.

Machines with a carburetor are more difficult to diagnose, since the pump is driven by camshaft. In view of this, to check, you will need to disconnect the end of the hose from the inlet fitting. So, if after that you swing the pump priming lever several times, then fuel should pour out of the fitting or hose.

When the starter turns, but the car does not start, the problem may also lie in the injector rail, or rather, the presence of gasoline in it. To check, it is enough to press on the valve of the fitting that connects the pump - gasoline should come out of it.

An essential part of the diagnosis is check the fuel filter for blockages. This is not surprising, because situations often arise when, due to a lack of fuel, the car does not start, the starter turns, the relay clicks.

Also follows check throttle valve , which, if contaminated, can cause idle move starter.

What to do when the engine does not start, but the starter clicks

Often, car owners are faced with a problem such as “turned off the car and does not start, although the starter turns”. The implementation of the measures and recommendations indicated above, in the vast majority of cases, can solve the existing problems. However, sometimes the relay may be faulty. To eliminate and eliminate problems of this kind, you should also diagnose the relay, after which you may have to repair or replace it.

Starter Relay Diagnosis

"The car does not start, the starter is spinning"- the cause of such problems can often be identified and eliminated on their own at an early stage, but for this you need to responsibly and carefully diagnose the starter relay.

To check the condition of the retraction relay, it must first be carefully removed from under the hood. After that, the starter must be cleaned of dust, dirt, mechanical debris. Oxidized contacts are processed with fine sandpaper.

The next step is to place the starter in close proximity to the battery and prepare two wires of the required length. It is advisable to use wires with "crocodiles". Then, with one electric drive, you need to connect the positive terminal of the battery with a similar output on the solenoid relay. After that, they do the same with the second wire, connecting the "minus" contacts. If a characteristic click of charge sounds when the wire is connected to the relay, then it is working and can be installed back. Otherwise, it should be repaired or replaced.

Relay repair or replacement

Repair and replacement is a fairly simple process:

Summing up, we can conclude that situations when it did not start car and starter twists, although they cause some inconvenience, but often they are not critical, since they can almost always be resolved on their own.

But do not forget that it is better to prevent the situation than to courageously solve problems, so the first rule of the car owner is to regularly check the correct operation of all systems and mechanisms of personal transport.

Malfunctions that appear at the time of starting the engine are a fairly common occurrence during operation. vehicle regardless of the type and design features of the installed power unit(gasoline, diesel, or motor, etc.). One of the frequent situations is that after turning on the ignition and turning the key in the lock to the start position, the starter turns normally, but the engine does not start.

A feature of breakdowns of this kind is a certain difficulty in localizing the fault. The fact is that it is much easier to look for a problem if, for example, the starter makes a sound, but does not turn the engine, or the fuel pump does not pump after the ignition is turned on. In any case, the existing problem needs to be solved. Next, we intend to talk about why the engine may not start when the starter turns well.

Read in this article

The car does not start with a normally working starter: possible causes

To begin with, at the beginning of the test, you should once again make sure that the starter is working. During its operation, when trying to start the engine, there should be no clicks, hum and other extraneous sounds. A serviceable starter should turn the motor with a characteristic buzzing of the starter electric motor, and do it smoothly, without gaps or failures. If during attempts to start the internal combustion engine the indicated signs are noticed, then the malfunction should be looked for in the starter.

After making sure that the starter turns and the engine does not start, it is necessary to proceed to a detailed check of certain vehicle systems. You should start with diagnosing the engine power system, as well as checking the ignition system and some sensors in the electronic ICE control. In other words, an engine with a working starter most often does not start as a result of the fact that no fuel enters the cylinders or the fuel does not ignite for certain reasons.

Fuel system check

Causes of difficulty starting a cold engine. List of faults. What you need to check to diagnose and more accurately determine the problem.

How to determine why the fuel pump does not pump or does not work well. Pressure in the fuel rail, pump diagnostics. Wiring, relay, fuel pump fuses.

You need to know what is the reason when the car does not start, the starter turns, but does not catch. There can be many reasons - these are malfunctions of the ignition system, fuel supply, starting (directly the starter), battery and electrical wiring. And each breakdown has its own characteristics, sometimes it is difficult to identify them, but if this is done, it is possible to carry out diagnostics without a special tool, only by ear. And you need to start such a diagnosis with the simplest, and finish with more complex ones. As practice shows, very often the malfunction lies on the surface, you just need to take a closer look.

Carburetor engine failure

If the starter turns, but the engine on the carburetor engine does not start, there may be several reasons for this:

clogging of the fuel filter (located in the engine compartment);
malfunction of the fuel pump;
clogging of jets or carburetor mesh;
malfunction of the carburetor - the level is incorrectly set in float chamber, the idle valve is broken;
clogged air filter.

The fuel filter is installed directly in front of the pump and should be inspected for damage or blockages. Replace if necessary. If it is not possible, rotate it around its axis (if it is in the form of a cylinder).

Usually the lower half is clogged, the upper remains clean.

You can get to the nearest store.

The pump may have the following faults:

Membrane destruction. Fixed by installing a new one from the repair kit.
Destruction of the diaphragm return spring.
Violation of the intake and exhaust valves. Very often, when heated, they jam, so you need to cool - put a wet rag on the pump housing or pour water on it.
Physical damage to the fuel pump housing.
The cam drive shaft is worn out. In this case, there are two ways out - replace with a new one or remove one of the gaskets under the pump.

Repair kits for fuel pumps have a relatively low cost. And the replacement of all components occurs quickly enough, but their quality is not very good, so the service life is sometimes limited even to a few days. It is much better to purchase the product assembled and install it on the car. The pump will work for at least two years, and if there is a defect in it, there is a guarantee.

The jets are cleaned by completely disassembling the carburetor. But if this is not possible, you can cheat a little. Swap the second and third armored wires and try to start the engine. If there is a blockage, it will go away. Sometimes the needle and float disengage. Then the motor starts, but can stall at any moment. But it also happens that it is not possible to start it. The electrodes of the candles are dry, the float chamber too. There is a cleaning net at the entrance. When using low-quality fuel, it quickly becomes clogged. It sometimes needs to be removed and cleaned with a toothbrush.

But if the starter does not turn the engine at all, then the problem is clearly not in the fuel system.

And another node that affects the operation of the carburetor engine is the idle valve. If its jet is clogged or the winding is burned out, the power is cut off, then it is necessary to carry out appropriate repairs. To do this, the first step is to check the presence of voltage on the power wire (with the ignition on). If there is, then test the operation of the valve - when voltage is applied to it, a characteristic click should be heard. If not, there is a winding break. If there is, then check the jet. Unscrew the valve and blow out the seat and holes in the jet. See if anything is preventing the needle from moving.

Malfunctions of the injector injection system

Everything is more complicated here, since anything can break. But if the starter turns, but the engine does not start, you need to look at all the sensors and actuators that are part of the power system. Main faults:

A non-working electric fuel pump leads to the fact that there is no pressure in the fuel rail. At the same time, the characteristic hum of the motor is not heard when the ignition is turned on. The electric motor may not work due to the failure of the windings or the fuse, the electromagnetic relay, which are in the power circuit.
If the fuel pump runs constantly without stopping, the starter turns and does not start the engine, then you need to check the integrity of the check valve (excess pressure) installed in the rail. The same symptom is in the case of a clogged filter on the fuel pump housing.
Malfunction of fuel injectors. Usually this clogging occurs due to the use of low quality fuel. At the same time, the starter turns, the car does not start, since the air-fuel mixture either does not enter the combustion chambers at all, or it is extremely small. The problem is solved by flushing the nozzles under high pressure.
Malfunctions of the electronic control unit, sensors. If any sensor fails, a signal is sent to the computer, which generates an error code corresponding to the malfunction and outputs it to the panel on-board computer or diagnostic scanner.

Breakdowns in electrical wiring

The most common fault in most older cars. Every car has two sources of power - the battery and the alternator. The battery is needed to start the engine. After that, all electrical equipment works at the expense of both sources. And the generator keeps the battery charged at the proper level. There may be the following breakdowns in electrical equipment:

Failure of one or more fuses. If voltage is not supplied to vital components - sensors, ECU, fuel pump, the engine will never start.
Breaks in the power supply circuit of the injectors, control unit, sensors and actuators.
Low battery - when the starter is turned on, a crack or click is heard. Sensation as if the solenoid relay could not work. But why the starter turns slowly can be understood by checking the battery charge and the quality of the ground wires.
The presence of secret anti-theft. Some motorists install hidden buttons that turn off the power to the pump or ECU, switch (on carburetor engines). Similarly, alarms block the operation of car systems and prevent starting. It is necessary to carefully check the integrity of the security system.

Finding a fault in the wiring is very difficult if the break is somewhere in the harness. Therefore, it is better to contact an experienced electrician who has not only tools, but also experience in troubleshooting such faults.

The following breakdowns can occur in the ignition system:

Switch failure on carburetor engines. The crankshaft rotates, but the engine does not start, as there is no spark on the electrodes of the candles.
Destruction of the coil (coils if there are several) ignition.
Failure of the ignition module on injection engines.
ECU malfunction.
Failure of the ignition distributor on carburetor engines. Destruction of the cover of the distributor, slider, Hall sensor or wiring.

Starter malfunctions

Here are the following breakdowns:

Retractor relay failure. At the same time, the starter does not turn at all, even a click is not heard.
Break in the stator or rotor winding. Can be diagnosed after complete disassembly. In this case, the click of the retractor is heard, but the rotation does not occur.
A similar symptom in case of failure of the brushes, jamming of the rotor. Only in this case, excessive heating of the stator housing will be observed.
If the starter rotates at an incredibly high speed, then we can conclude that the bendix or flywheel ring is malfunctioning. In the first case, there will be no extraneous sounds, the rotor simply rotates and does not grab the crankshaft. The reason lies in the failed overrunning clutch. In the second case, sometimes the starter will seize, rattle and crunch are heard. These are the teeth of the bendix clinging to the ring of the flywheel.
And another malfunction is the destruction of bushings and power buses. Check the ground, due to poor contact, it will feel like the battery is low. At the same time, the car does not start, the starter turns very slowly. The lights in the dashboard light up either normally or as in the case of a dead battery.

Some breakdowns are fixed quickly. But when replacing the flywheel crown, you will have to dismantle the gearbox. And it does not depend on the make and model of the car.

Malfunctions of the gas distribution mechanism

On cars of the classic VAZ 2101–2107 series, the valve system is very finicky, requiring constant attention and adjustment. The frequency of checking the gaps is 15,000 km. Newer front wheel drive vehicles do not have this problem. And if there is a hydraulic compensator system, then the driver will never adjust at all. But on the classics, the engine may not start if the gaps are set incorrectly. Gas distribution cycles are violated and ignition occurs with open valves. This is wrong, the engine will not be able to work in this mode.

An open timing chain or timing belt is an infrequent breakdown, but it happens.

And if changing the belt is a matter of ten minutes, then with the chain everything is more difficult. But not all belts break without consequences, on some motors the valves bend. And you will need to dismantle the cylinder head, install and grind in new valves. A sign that the timing belt has broken is that the crankshaft is turning the crankshaft too fast. That is, the entire starting system works, but the camshafts do not rotate. It is impossible to start without the operation of the timing unit.

Diesel engines

share passenger transport with diesel engines is quite small. The reason for this is the complexity of the engine and its systems. Most of breakdowns that occur in gasoline engines, available for diesel engines. This is clogging of nozzles, filters, failure of the engine control system. But there are specific breakdowns that are associated with just this type of engine. If low-quality fuel is used, then it can freeze in a big frost. This will make it impossible to start.

One of the main components of the power system is the high pressure pump.

Its incorrect operation affects the starting of the engine. Self repair such a mechanism is sometimes impossible, it is better to contact a mechanic. Possible failure of the glow plugs. In this case, the crankshaft will rotate, all systems work, but the car will not start. Therefore, before sinning on the pump, it is necessary to diagnose their operation. But air brings great harm. If there is suction in the line or pump, it is necessary to fix the problem. In some cases, it will be necessary to pump the entire power system.

AND possible reasons. It is no secret that difficulties of this kind are always an unpleasant and unforeseen surprise for any driver. Surely each of us had to witness a situation when the car does not start, the starter turns but does not catch. Let's try to figure out why this happens in order to have an idea how to behave in such a situation. The fact that the starter is already turning well means your accumulator battery healthy. Read how to check the condition of the battery.

Not a single car engine is immune from such a situation. It doesn't matter what the outside temperature is. We will analyze in sequence what to do for various types of power units.

In case of carbureted engine it is a little easier to determine the causes of difficult starting. First, let's try to pull the choke handle (choke control) towards us. If this does not help, then proceed to the search for a spark. Poor contact, oxidized or burnt terminals can make it difficult to start the motor. The same goes for poor coil-to-ground contact. If everything is in order with the spark, and there is fuel in the gas tank, then there are problems in adjusting the starting device.

The procedure will be as follows:

The injector is distinguished by its own characteristics, which manifest themselves in case of problems with starting. With such symptoms, you need to start by checking the fuel pump. This may be due to oxidation of the power terminals. After that, it is necessary to check the level of fuel pressure in the fuel rail. Find the side to which the fuel supply is connected. On the side opposite from it, a valve is placed under the cap. We click on it and expect that fuel will run from there. If this does not happen, we begin to check the performance pressure reducing valve fuel pump and fuel filter condition.

What could be the reason that I twist the starter, but injection motor does not start - blog readers often ask me? One of the possible troubles is related to flooded. This often happens in cold weather. You have to wait until they are dry enough. The engine can be turned with a starter by removing the injector connectors before that.

Diesel

Most difficult to launch diesel engine. The fuel in it ignites according to a slightly different principle. The chambers in which diesel fuel burns warm up to very high temperatures, after which diesel fuel is supplied to them along with air, which is ignited by compression. In cold weather, it is advisable to warm the air in the cylinders with glow plugs. If this is not done, then the car may start, but immediately stalls or works unstably until it warms up.

Even the slightest frost or freezing temperatures can be enough to cause starting problems. V diesel engine You need to start by checking the condition of the glow plugs. We start by checking the glow plug control unit. To do this, we need a control lamp. We connect it to the mass and power of the candles, and then turn the key in the ignition. In the case of a working unit, the indicator lamp will light up.