In a situation where the starter turns, but the car does not start, many motorists find themselves. Reasons there may be several. it damp candles and an inoperative ignition coil, lack of fuel supply to the engine cylinders and a weak battery, failure of the part itself, etc.
Eliminate the breakdown, in fact, much easier than discovering what led to it.
What to do when the starter cranks without grabbing
First of all, you should make sure that the starter is not broken. At faulty starter, when trying to start the engine , unusual sounds will come from under the hood: crackle, knock, hum, clicks.
If the starter is working properly, the characteristic hum of the electric motor of the starter itself will be heard. Thus, you need to act by the method of elimination.
If everything is in order with the components, the malfunction is different.
Regardless of whether the car is runningon gasoline or on diesel fuel , the supply of fuel to the cylinders is carried out through a carburetor or an injector. The engine of the car may not start, with a properly functioning starter, due to problems with this unit.
If a car with a carburetor
Define, is the carburetor working properly?, you can in this way. With a sharp opening of the throttle, a portion of the fuel should be injected into the diffuser from the sprayer of the accelerating pump. If this is not the case, then gasoline is not entering the combustion chambers. Both the carburetor and other elements of the fuel system may be faulty.
Carburetor models suffer from this. VAZ 2106, 2107, 2109, 21099, 2114, 2115, Niva, UAZ.
If on injection auto the starter is spinning, but the internal combustion engine does not start, it can be assumed that there is a breakdown in the fuel supply system.
Check if there is fuel in the rail (ramp). It is equipped with a special regulator valve... You need to click on it. If fuel is supplied to the injectors, the fuel supply system is functioning normally. Otherwise, you need to check the filter for clogging.
This problem is common in cars. VAZ 2110, 2112, Kalina, Priora, Granta, Daewoo Nexia and Matiz... But the injectors of modern foreign cars Opel Astra, Chevrolet Lacetti, Hyundai Solaris and Accent, Toyota, Ford, Peugeot and Kia do not have such diseases.
What to do with a diesel
Car owner with a diesel power unit, first of all, if the starter turns, but the engine does not start, you should check if there is air leaking into the system... This is especially important during the winter. The fact is that under the influence of low temperatures, solarium waxes (freezes). In this state, the fuel will simply not physically enter the combustion chambers of the internal combustion engine.
Search for possible causes
If the actions described above do not bring results, you will have to proceed to further diagnostics cars. We check the ignition system, the flow of fuel, the starter relay, and, if necessary, - change it, in case of failure, we continue to search for other possible reasons.
Diagnostics of the ignition system
It should be understood that elements such as high-voltage wires and spark plugs simply cannot fail at the same time.
To check the first ones for proper functioning, you need to do the following manipulations:
- Unscrew one spark plug from the engine head;
- Put a high-voltage wire on it;
- Apply the candle with a skirt to the surface of the cylinder block;
- Try to turn the motor from the starter.
If there is a spark, the ignition system functioning properly... Otherwise, you need to use another candle, obviously working. If the spark is ultimately absent, a breakdown of the ignition coil of the engine with a carburetor, or the ignition module, if the engine is with an injector, is possible.
The coil of the carburetor internal combustion engine is checked as follows:
- The central wire is taken out, its end is brought to the metal (the distance between them should be from about 5-7 m millimeters).
- The engine is cranked by the starter.
The absence of a spark in this case indicates that the coil is out of order.
Checking the fuel system
One of the elements of the fuel supply system - fuel pump ... For carburetor and diesel cars, it is located next to the engine block or its head. Have injection internal combustion engines, the pump is placed in fuel tank... In the latter case, its correct operation is evidenced by a short buzzing, which is heard at the moment the engine is started. Diaphragm for diesel and carburetor pump power unit driven by a cam on the camshaft.
Verify, is the pump broken? is simple enough. For this:
- The hose is removed from the carburetor inlet and lowered into a suitable container prepared in advance.
- By means of a lever manual paging or by means of a starter, fuel is supplied.
If the result is negative, you should check passing fuel through the fuel line, and also clean the mesh, which is located in the upper cover of the pump. If the manipulations carried out did not correct the situation, you will have to inspect the pump valves and the membrane.
The presence of damage on these elements implies their replacement, which can solve the existing problem.
Starter relay diagnostics
One of the reasons why the engine does not start when the autostart turns the starter may be relay break... To check this element for performance, you need:
- Remove the starter, clean it of dirt, debris, dust, and also process the contacts with sandpaper;
- Prepare a pair of wires of the required length and place the starter near the battery;
- Use one of the cables to connect "a plus" a power supply with a similar contact on the solenoid relay;
- Connect in a similar way "minuses".
If at the moment of touching the wire a characteristic click is heard, the relay is working. Otherwise, it must be replaced or repaired.
Relay repair
Step by step renovation process DIY relay looks like this:
- Battery disconnects power
- The contact is removed from the thrust bolt.
- The screws that fix the relay with ground are unscrewed.
- The relay is removed.
- The core is removed and a new one is installed.
- In the reverse order, the starter is installed on the car.
The last stage is to check the functionality of the node.
Other possible causes
Among other possible reasons, it should be highlighted, first of all, the likelihood that there may be depleted battery... In this case, the energy of the power source will simply not be enough to turn the flywheel through the starter.
Another likely reason that the starter cranks, clicks, but does not grasp is oxidation of terminals and contacts... If a similar problem is found, they should be thoroughly cleaned.
The so-called “ human factor... For example, backing up, you can drive into a snowdrift, which will lead to clogging exhaust pipe... In addition, the reason may be a banal blocking of the fuel pump, due to the included alarm.
The video presents possible reasons the fact that the car engine does not start, although the starter turns.
author
For 15 years I have been repairing all kinds of cars, including brands such as Vaz, Uaz, Chevrolet, Mazda, Kia and many others. Everything related to the gearbox, engine or chassis. You can write me your question below in the comments and I will try to answer it in detail.
Among the many surprises that a motorist can present to his car is a refusal to start the engine. There are many reasons for this misunderstanding. One of them is a starter malfunction.
Also, when the car does not start, the starter does not turn, the reason may lie in some auxiliary systems. The fault may be the battery, problems in the electrical circuits, or a malfunction of the solenoid relay.
Car engine starting mechanism
The mechanism for starting a car engine is a system that requires special attention and is directly responsible for starting the engine itself.
Modern cars are mainly equipped with a starter engine starting system. The starting mechanism is directly related to electrical equipment.
The mechanism is powered by direct current car battery. The triggering mechanism includes the following elements.
- Connecting wires.
- Ignition lock (read also about).
- Drive mechanism.
- Traction relay.
Reasons for starter failure
The rotation of the engine crankshaft occurs due to the creation of the required starter torque. It's kind of Electrical engine with constant current.
If it turns out that the starter does not turn, it is necessary to determine the cause of the breakdown and understand what exactly the malfunctions in the engine starting system are characterized by.
Sometimes the starter does not turn or click due to disconnected peripherals. In this case, you also do not need to discharge the battery, and start looking for the problem.
Lack of sufficient charge in the battery
When considering the reason when the starter does not respond to turning the ignition key, most often motorists focus on the lack of power. The battery is either disconnected or discharged. If this is indeed the case, there will be no signs of life from the starter.
If the problem with the battery is confirmed, the terminals on the battery should be carefully checked. Often the lack of power occurs due to an insufficiently strong connection.
Malfunction of the electrical circuit of the ignition system
If the starter does not turn, but the battery test showed no malfunctions, you should look for the reasons elsewhere. Often to blame for the problem are breaks in the wiring, that is, the electric wires either spark when the engine is started, or they are completely disconnected from the battery.
Often the same problem occurs due to oxidized terminals. This "disease" is typical for batteries of any model.
Malfunction of the solenoid relay
In some cases, the starter solenoid relay clicks, but the circuit does not close. Sometimes you can save yourself by closing contacts, but not always. If a characteristic crackling sound is heard in the engine area, the bendix is likely to break.
It's easy to find out Bendix. It looks like a small gear located on the rotor shaft. When voltage is applied to the bendix, the relay starts to operate, which controls its movement, coupling it with the flywheel.
If the bendix is worn out, the entire procedure described becomes impossible, since the relationship between the part and the flywheel teeth will not be achieved. The impossibility of this procedure provides the characteristic crunch.
Starter malfunction
Although most often the reason for not turning the starter is a lack of energy and a lack of charge in the battery, often the reason lies in the very details of starting the engine.
In this situation, the identification and elimination of the malfunction will take significantly more time and effort. The most common launcher problems are:
- if there is a smell of burning, or the starter is smoking, it is possible that the winding burned out when it was closed;
- breakdown of the electrical system of the launcher;
- failure of the retractor relay;
- the teeth of the bendix are worn off;
- damaged contacts;
- burned out wires.
Usually, when the starter clicks, but does not turn, it is sent for repair to a service, but it is not always possible to repair it. For example, if the cause of the malfunction is a breakdown of the solenoid relay or a malfunction in the functioning of the bendix, the device can be repaired. If the problem is with the electrical system, the starter will probably have to be replaced.
Incorrect alarm operation
How to start the car if the starter does not turn, if everything is in order, the battery is charged, and the wiring is not damaged? There is a possibility of malfunctions in the process of work as a result of malfunctions of car alarms and immobilizers.
The characteristic factor of the presence of a problem in the anti-theft device is that the car does not start, the starter does not turn, the relay does not click. Either the car started up, but then it stalls. The engine does not respond to starting from the key, and does not start with the key fob. If all these factors, or selectively, are present, then either a complete or partial blocking of the system has occurred.
What can be done?
Any motorist knows about the generator available in the car for charging the battery. This is a special device that transfers electricity to the battery and the on-board system from the motor.
Thanks to this technological process, the battery can be additionally charged. Full charging of the battery in this way is impossible for a number of nuances:
- The battery cannot be fully charged during operation as it must be at rest.
- This technology only allows charging to start the engine.
- The charging process itself is very weak.
- If the generator is running, the battery is under heavy load.
Therefore, when the car does not start, the starter does not turn, the relay clicks, you should not really count on charging the battery in this way.
It is much more efficient to replenish the battery charge in the standard way, using charger... All energy will be restored in just a few hours, and the battery will be ready for use again.
If the situation is urgent, charging with a charger is still more relevant. Literally 20 - 30 minutes and the battery will be partially charged.
In case of detecting problems with the power supply system, it is necessary to take some actions:
- using a screwdriver with a rubberized handle, unscrew the battery terminals;
- take sandpaper of zero fraction, and thoroughly clean the connecting wires and terminals;
- also sandpaper the contacts on the battery itself;
- check the battery charge;
- assess visually the connecting wiring supplying the starter for integrity;
- securely fasten the battery terminals, making sure they do not come off;
After carrying out all these manipulations, you should turn on the engine and evaluate the operation of the starting system.
If the starter does not turn, the relay clicks and cracks, it is necessary to check the retractor relay. For this, the voltage must be applied directly from the storage battery to the control terminal. It is not difficult to recognize it. Usually a thin wire leads to it. In the case of normal cranking of the engine, the fact of failure of the solenoid relay will be confirmed.
Most often, burning of contacts is noted in the relay. To eliminate the malfunction, it must be dismantled, the contacts must be cleaned and reinstalled.
A repaired solenoid relay, by definition, will not last long. The fact is that the factory processing provides for the application of a layer that resists erosion to the contact pads.
Under normal conditions, this layer cannot be applied, therefore the next burning of the contacts is possible at any time.
Conclusion
There are many reasons why the car does not start, the starter does not turn, clicks, etc. Moreover, all these reasons are often in no way related to each other. The reason why do not twist the starter can be caused both by ordinary aging of the metal, and by many other factors, up to and including improper operation.
The car does not start, the starter turns - an unpleasant situation that anyone can get into. Basically this is a problem of used, well-worn cars, such a situation will force any novice driver to understand at least a little about his car. What are the reasons and what to do, we will try to understand the details.
What is required for the engine to work?
In order for the engine to work, it needs certain conditions, namely:
- Fuel availability
- Availability of air
- Compression
- Timing timing
- Ignition (spark)
If something from this list is faulty, the engine will not start, no matter how hard you try. Hence, we need to check that all conditions are met. You also need the starter to turn, otherwise the engine will not start, but cars with manual transmission you can start with a pusher, with a machine gun this will not work.
Timing
If the starter turns pretty quickly and evenly, and the engine does not start, most likely the belt has broken or there is no compression. Under normal conditions, the engine is cranked by the starter as if by jerks - compression interferes. If you unscrew the candles, then nothing will interfere with him. When the timing belt breaks, some valves remain open, others bend and do not fully adhere - air passes through them perfectly. The pistons go up and down and there is no resistance in the form of compressed air, hence such agility at the starter.
Therefore, first of all, check if something has happened to the belt. If everything is in order with him, we look for the problem further.
Ignition system
There must be a spark, otherwise the fuel will not ignite. The spark comes from the ignition system. On modern cars this is all checked through computer diagnostics - connect the computer to the connector, and see the malfunction. But this is on the service. At home, everything is done by hand.
How to see if there is a spark? Not a problem, we unscrew the candles from the engine, put high-voltage wires on them, put them on the ground - on the body, on the engine, no matter what - and try to start the engine. The spark should be clearly visible, especially if the area is dark. If the spark There is a problem most likely not in the ignition, if there is no spark, we are looking for where it was lost - bad candles, piercing wires, distributor, coil, power cut, control unit - depending on who has which system.
Fuel
With fuel, everything is also simple - either it is there or it is not. With the plugs unscrewed, when scrolling with the starter, gasoline flies through the plug holes just fine! If nothing arrives, fuel does not enter the cylinder. Maybe someone drained all the gasoline at night? In any case, one must look for a reason. The most harmless is the fuse for the fuel pump, which has accidentally blown out. A penny part and easy to change (if you have a carburetor, don't worry, you don't). Sometimes the alarm can turn off the fuel pump, especially if it turns off or the battery is discharged - this is their standard function.
And then any part of the fuel system can break down - the filter can get clogged and not let the fuel through, the pipe will burst somewhere, the wire will oxidize or burn out, all this must be looked for. It is best to check the fuel pressure in the rail, if there is fuel under pressure, and in the cylinders it is dry, then the injectors do not work. If there is no fuel in the rail, then the pump does not pump, or fuel is lost somewhere along the way, through the same crack in the tube.
Compression
Everything is clear here, there is no compression - the gas will simply fly out of the cylinder, and will not push the piston. As a rule, this is immediately visible, the engine, when scrolling with the starter, starts to turn very cheerfully, with almost no effort, you have to look here, if you don’t find it, take a bucket and go to your neighbor in the garage, let it sprinkle some compression.
In principle, you can think of a bunch of reasons why the starter turns, and the engine does not start, but these are all special cases and there can be thousands of them. We have considered a more systematic troubleshooting.
Often, car owners are faced with a situation when the starter works in its normal mode, and the car refuses to start. Such an unpleasant situation can be taken by surprise at the most inopportune moment. To quickly solve this problem, you should familiarize yourself with the main causes of such malfunctions and adopt the most effective methods their elimination.
Why with a working starter, the internal combustion engine may not start
Uninterrupted engine start is the result of well-coordinated work of all units and systems serving it. Each of them needs systematic care and diagnostics. Nevertheless, even when carrying out all the declared types of services, no one is safe from failures in their work.
So, problems with starting the engine, provided that the starter is working properly, can be caused by malfunctions:
- ignition systems;
- power supply systems;
- cylinder-piston group.
Ignition system
According to the convictions of many experts, most of the malfunctions occur in the ignition system. In the presented case, first of all, it is advisable to check the spark supply. To make sure that the coil is emitting a spark, it is necessary to remove the central armor wire and bring it to the engine ground. If, when the ignition switch is turned in the "st" position, a spark jumps between the wire and the ground, everything is in order.
The next step is to check for sparking at the spark plug electrodes. This procedure is practically no different from the previous one. The candles are in turn brought to the mass, and if a stable spark discharge is traced on each of them, then this problem is excluded.
Difficulty starting the engine can also be affected by gaps in the spark plugs. If they are higher or lower than the set value, problems may arise with the ignition of the combustible mixture, which, one way or another, will affect the effective start of the motor.
If the car is installed contact system ignition, which is typical for outdated models, there is a possibility that the problem lies in contact group... During operation, the contact surface burns out, which prevents the passage of current. In addition, you should monitor the gap between the contacts. It must match the set value.
An important role in this case is played by the distributor drive. Significant backlash in the seats indicates increased wear. Operation of this unit in this condition can cause serious interruptions in the operation of the engine.
Supply system
During operation, the elements of the power supply system are subject to mechanical wear and clogging. It should be noted that the timely replacement of consumables in this case will significantly reduce the likelihood of failure of the fuel system components.
One way or another, the diagnosis of malfunctions of this kind should be started by checking the fuel pump. If it is equipped with a manual priming mechanism, you can try manual priming. If the pump does not have such a function, then in order to make sure that it works, it should be dismantled. The main working element of the pump is the diaphragm. If external damage to its surface is observed, it will be replaced.
The quality of fuel in the vastness of our vast Motherland leaves much to be desired. In this regard, timely replacement of all filter elements should be carried out. It is possible that poor engine start is associated with a clogged fuel filter.
This issue should be treated responsibly:
- check the mesh elements in the fuel pump, carburetor and fuel tank,
- inspect the fine filter,
- make sure the throughput of the fuel line.
Cylinder-piston group
A worn-out cylinder-piston group also negatively affects engine starting. The key indicator of a serviceable CPG is the presence of a set operating pressure at the time of the compression-compression stroke.
In order to check the compression, it is necessary to use a compressometer. This device is equipped with an indicator with a scale and a tube with a fitting. The latter is screwed in instead of the spark plug. When the engine is started, the pressure gauge registers the pressure in the cylinder.
By alternately checking the compression in each cylinder, we can conclude about the degree of wear of the CPG. Average compression gasoline engine should be about 10 -12 atmospheres.
Checking the ignition system and electronics
Checking the ignition system involves a certain sequence of actions. Such a step-by-step diagnostic principle allows you to significantly save time and quickly eliminate the malfunction.
This stage involves checking the following components and elements of the ignition system:
- babina;
- spark plug;
- distributor (breaker-distributor);
- distributor condenser.
The ignition coil is used to generate the high voltage required to ignite the working mixture. If she starts to be "naughty", the engine may not start. To make sure that it works, you need to "throw off" the central wire of the distributor and "short" it to the engine weight.
If a spark jumps, the coil is good. If not, the bobbin should be replaced. In most cases, coils deteriorate as a result of normal wear and tear. But, there are times when her "death" occurs after replacement high-voltage wires for non-standard analogs.
If the coil is not in doubt, we will observe the operation of the spark plugs. First you need to unscrew them and conduct a visual inspection. Particular attention should be paid to the working part where the electrodes are located. If the candles "lead a healthy lifestyle", their surface is distinguished by the presence of a barely noticeable bluish bloom.
If the electrodes are "smoked", the mixture is over-enriched. If the electrode is white, the engine is starved of fuel.
After a visual inspection, you need to make sure if the spark is coming from the distributor to the candles. Each candle is brought to the mass of the car at the minimum possible distance.
When cranking the engine with a starter, a spark discharge should occur in the gap between the electrode and the mass.
Trambler
One of the key ignition mechanisms that affect the effective start of the engine is the distributor.
Diagnostics of its performance is reduced to checking the following elements:
- slider;
- contact Group.
The slider is responsible for supplying a spark to the contacts of the spark plug wires. Therefore, if it fails, the spark will stop supplying directly to the spark plugs. It often happens that a resistor installed in its case burns out. In this case, after replacing it, the malfunction is eliminated.
The contact pair consists of a movable and a fixed contact. Each of them has the so-called "pyataks". During operation and external influences, they wear out and characteristic traces appear on their surface, the so-called shells. This significantly reduces the current carrying capacity, which negatively affects sparking. If the degree of wear is insignificant, the contacts are cleaned, after which a gap between them is set with a feeler gauge. When they are critically worn out, they must be replaced.
Capacitor
A capacitor is located on the distributor body. It is designed to generate more voltage on the secondary winding of the coil. It won't take much time to check if it works.
To do this, you should use a regular 12V car bulb. A lamp is connected to the gap between the coil and the capacitor. If it is on, the capacitor is defective. The lamp does not light up - the capacitor is operational.
Malfunction of the fuel system
Most of the problems of this nature are caused by untimely replacement fuel filters. As a rule, as a result of their clogging, the raw fuel flows through the bypass directly to the carburetor or, in the case of an injector, to the fuel injectors.
So, the revision of the fuel equipment and all consumable items should be carried out by checking the filter parts. To do this, it is enough to check the throughput of the fine filter, as well as to revise the fuel receiver installed in the tank of the car.
If replacing the filters did not lead to the desired result, it becomes necessary to check the following components of the power system:
- gasoline pump;
- carburetor;
- nozzles.
Due to long-term operation, the diaphragm and the fuel pump valve can deplete their resource. Due to the fact that they belong to consumables, to eliminate such a malfunction, you will only need to replace them.
In the case of the carburetor, the situation is somewhat more complicated. To check its serviceability, you will need to remove at least its upper part. If there are trash particles in the float chamber in the form of heavy fractions, the carburetor needs a comprehensive cleaning. It involves purging its nozzles and channels.
In addition, due to the ingress of foreign particles into the cavity of the shut-off needle, there is a possibility that it has fused. Blowing out the duct with compressed air will solve this problem.
Malfunctioning injectors is often caused by clogged calibration holes.
A clear sign of such a defect is low level spray nozzles. Simply put, the fuel is delivered unevenly, in the form of a jet. In this case, they need to be washed. It should be noted that comprehensive diagnostics of injector operation is performed only at a special stand.
Other motor starting problems
In addition to the above malfunctions, there are a number of other problems. Their appearance may be due to various factors related to the conditions and manner of vehicle operation.
The car may not start due to:
- overheating of the engine;
- unjustified choice of fuels and lubricants;
- lack of fuel;
- clogging of elements of the exhaust system.
What to do if the car won't start in winter
It is fraught with various difficulties. This is especially true for car owners, whose cars are forced to spend the winter in the open air.
In order to significantly facilitate starting the engine at subzero temperatures, you need to adhere to some requirements:
- use synthetic lubricants declared by the manufacturer;
- insulate the engine compartment with special means;
- enjoy preheaters and auxiliary devices;
- depress the clutch pedal before starting the engine;
- monitor the health (check the density, level and charge of the electrolyte).
What if the attempts to start the engine in severe frost were unsuccessful? Let's say the battery is still alive. In this case, you need to unscrew the candles and ignite them properly. If they are "smoked", then the owner pressed the gas pedal too hard and simply flooded them. So, the candles are calcined and screwed into the head.
Before starting, “ventilate” the intake manifold by holding the gas pedal in the fully depressed position for a few seconds. We twist the starter and observe the behavior of the engine, while the air damper should be closed by 1/3.
If after a short operation of the starter "flashes" appear, you should not "drive" the starter until you are completely exhausted. The attempt must be repeated after a while, gradually enriching the mixture by overlapping the carburetor working chamber with an air damper.
Effective starting of the engine depends on the correct operation of all its life support systems. Each system requires systematic maintenance and repair. Such diagnostic measures will eliminate the occurrence of unforeseen breakdowns and failures and will have the most favorable effect on the operation and starting of the engine, regardless of external factors.
A faulty starter motor is one of the most common reasons why a car engine won't start. However, in practice, it is often found that the starter turns, but the car still does not start. What is the reason for such a whim and what needs to be done to eliminate the malfunction? It is to these questions that we will provide you with answers today.
Often there are situations when the starter turns, but the car does not start the first time. Of course, it is absurd to consider such a machine to be serviceable. The first thing to do is go to the service station and find the cause of the malfunction. If the starter turns, but the engine of your car still refuses to start, we advise you to check:
1. Fuel system... Sequentially, starting with the fuel pump and ending with the carburetor / injector, check fuel system... If, when you turn on the ignition, you do not hear the operation of the fuel pump motor, then here it is - the root of all evil. V best case you can get by with replacing its fuse, at worst - the replacement of the unit itself is inevitable.
2. Fuel filter... We think it's superfluous to talk about the low quality of fuel and the presence of all kinds of impurities in it, because it is not a secret even for a novice car enthusiast. As a result, the fuel filter becomes clogged, the engine does not supply enough gasoline and refuses to start.
3. Ignition system... Pay attention to the high voltage coil and ignition distributor first. Look to see if the candles are filled, because it is often because of this that the engine starts to be capricious. Unscrew the candles and check to see if there is a spark on them. If there is no spark on injection car, then you will have to replace the ignition module, if the car is carburetor, then you should check the ignition coil. Do not overlook the distributor, the simplest thing is to inspect its lid, it should not have cracks or other defects, a spring-loaded graphite rod should flaunt on the lid inside.
4. Throttle valve... Hammered throttle, similar to the hammered fuel filter, is often the reason for the engine failure to start when the starter turns.
5. Battery and its terminals... A dead battery and oxidized terminals are other popular reasons for preventing a car from starting.
6. Wiring... It is obvious that breakdowns in the car's wiring can also cause the car to fail to start.
Often, after checking the indicated units, it is possible to establish the reason why the engine does not want to start with a working starter. However, the described is often not enough, then it is necessary, as they say, "to drip deeper". The list of reasons why the engine may refuse to start with a torque starter can be supplemented with the following:
Faulty defective ignition switch... Turn on the headlights, if they have dimmed or gone completely out when you try to start the engine, then the reason for the car's refusal to start should be looked for in something else, but not in the defective ignition switch.
Violation of the integrity of the fuses... We will not be cunning, very rarely the car stops starting due to the indicated reason, but you should never write it off.
Corrosion on any electrical component, especially at the starter.
No spark from the ignition coil... The problem is solved by replacing the failed coil with a new one.
Condensation under the hood... Yes, do not be surprised, but sometimes, due to excessive moisture under the hood, the engine may refuse to start.
It is possible to search for the cause of engine failure to start according to the algorithm proposed above only when the starter turns smoothly, without jerking. Otherwise, problems with the starter itself can become the basis for the whim of the motor. In particular, sometimes jerks in the operation of the starter indicate insufficient contact of the contacts, this may be due to wear of the starter brushes, oxidation of the contacts of the electric drive or terminals. If the standard starter was replaced quite recently, and now it shows its character, then, perhaps, the reason is poor-quality wiring installed on the starter during assembly.
As you can see, there are quite a few reasons for the engine failure to start with a torque starter. You, of course, can define them yourself by following the advice above, but if you doubt your abilities, we recommend asking for help from the workshop masters, who face similar problems in their practice almost every day. When contacting real professionals, you can save time and nerves, and sometimes money.
Love your car and take care of it! If your iron friend began to be capricious, then do not postpone a visit to the car service.
