Problems when shifting gears in a car lead to a decrease in driving comfort. Malfunctions of this kind are usually associated with the transmission and errors made during its operation. In this article, we will analyze for what reasons the first gear on Priore does not turn on well and how this problem can be solved.

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Why are transmissions bad?

First, we suggest finding out what is the reason why reverse or first gear is sometimes or systematically activated with difficulty.

If, when you press the clutch pedal and try to turn on the speed, a crunch is heard from the car box, this indicates problems in the operation of the unit.

The reasons why the transmission is difficult to turn on may be different, we will consider them in detail:

1. If the first and second gears are hard to switch, the problem may be that the clutch is not fully activated. On the VAZ Priora, the reason often lies in the damage or disconnection of the cable on the pedal. You can identify such a problem by diagnosing it. If the pedal is sunk into the floor, the cable must be replaced.
2. Breakage of the drive rod for controlling the gearbox gear activation mechanism.
3. Damage or incorrect work jet thrust transmission.
4. Loose fixing bolts on the gear selector lever or on the hinge. It is necessary to determine the reason why the screws may have loosened.
5. Making mistakes when adjusting the gear activation drive.
6. Failure or damage to the plastic components that are installed on the box control drive gear Lada Priora.
7. Mistakes made when adjusting the backstage. This node on the VAZ Priora is designed to connect the gearbox to the selector in the car. As a result long-term operation plastic bushings may have worn out on the wings.
8. Failure of the synchronizing elements. These mechanisms are made in the form of brass bushings, which are used for more simplified gear shifting. Brass is a soft metal and wears out over time. If the first and reverse speeds turn on tightly, and the reason lies in the synchronizer elements, when you try to shift gear, an unpleasant crunch or rattle will be heard. When there are no problems with gear activation, but there is an uncharacteristic sound during the operation of the gearbox, then in the future you will encounter difficulty shifting gears.
9. Failure of bearing elements as a result of damage or wear. Such a malfunction is not common, but over time the bearings wear out, so every car owner can face it. When a part breaks, one of the transmission pulleys is no longer able to rotate, which leads to problems when activating speeds. Usually it is only the first gear.
10. Failure of the box shaft. This assembly is not subject to wear or critical stress during its lifetime, but it may fail due to a manufacturing defect. Even minor mistakes made by the manufacturer when assembling the vehicle can lead to shaft breakage. Because of this, the car owner will face the problem of not only difficult engagement of the first gear, but also a breakdown of the transmission unit as a whole.
11. The reason may lie in the pillows of the motor of the machine. The power unit hangs on them and connects to the transmission. With prolonged use, the auto mount fails or unscrews from seat. This leads to sagging of the car's engine or transmission. As a result of subsidence, damage to the backstage may occur.
12. Clutch fork failure.
13. Clutch basket malfunctions. This assembly breaks due to wear or damage to the petals. The “spider” of the basket can also fail. This element is a bearing mechanism, which is fixed on several stretch marks. If they are torn, they cannot fully hold on to the basket, which leads to difficulties in switching speeds. Due to damage to the petals, the clutch disc cannot be pressed. If the disk itself is worn out, this will lead to the appearance of development. When the wear of the part is too great, it will not be possible to turn on the speed.
14. Damage to the ball joint or spherical spring.
15. Often these problems appear as a result of replacing transmission fluid. The main feature of the Priora gearbox is that gear ratios at the first and second stages of the unit differ as much as possible. When the driver switches gears, in the process it is necessary to wait for the input shaft to slow down. If it slows down longer than usual, the reason may be the use of a low viscosity lubricant or a slight underfill.

User Sergey Tsapyuk made a video in which he spoke about the problem of poor gear engagement on Priore.

How to fix the problem

If the gearbox on the Lada Priore refuses to work normally, it is necessary to disassemble and repair the unit. The following are instructions that will prompt you to solve some problems.

How to remove manual transmission

The dismantling of the transmission is carried out as follows:

1. Drain the gearbox oil. Drive the car on a flat surface in a garage with a pit or on a flyover. Climb under its bottom and find a drain plug working fluid, under the hole, install a container into which the "working out" will merge. Loosen the bolt with a wrench and wait about one hour until the fluid is completely out of the system. After that, the transmission is dismantled.
2. The next step is performed in the salon. Under the control panel is the cable housing mounting nut, it is connected directly to the pedal. Unscrew the nut with an 8 wrench. After unscrewing, you can remove the stop from the bracket.
3. Remove the locking assembly, as well as the housing of the driven pulley lining wear compensation mechanism, these components are connected to the so-called pedal pin. For dismantling, use a Phillips screwdriver, pry the mechanism with a tool. Dismantle the plastic sleeve from the pedal, carefully inspect it. The presence of damage and defects indicates the need to replace the part.
4. Then the seal is removed on the cable sheath, this component is located in engine compartment. Remove the tip from the fork by moving it forward in advance in the direction of travel of the machine.
5. Remove the nut that secures the handpiece to the bracket in the gearbox. This nut will require a 17 wrench. Dismantle the cable end from the mounting hole. After that, it can be removed. Remove the plastic plug and remove the plug with wires from the speed controller.
6. Unscrew the three screws securing the crankcase cover, this will require a 10 key. The cover is dismantled. A reliable support should be placed under the power unit of the machine. Remove the nut that secures the rear of the engine mount to the bracket, this will require a 15mm wrench.
7. Remove the upper limiter of the rear motor support cushion. Unscrew the screws that fix this element to the car body. Remove the cushion together with the restrictive device.
8. Remove the nuts securing the rear motor mount to the transmission. To unscrew, you will need a 13 wrench. The number of nuts depends on the year of manufacture of the car. Using an 8 wrench, unscrew the upper fixing screw, and then dismantle the rear support bracket.
9. Remove the plastic plug and remove the block with wiring from the optics activation mechanism reversing. Unscrew the screw fixing the hinge of the gearshift device on the rod, here the speed is selected. Use a 10 wrench to remove.
10. Unscrew the screws fixing the jet thrust. Also unscrew the bolts that hold the front wheel covers and remove them using a flat head screwdriver. There are rubber seals on the removed parts, make sure not to lose them.
11. Using a 30 wrench, unscrew the screws securing the wheels and the hub nuts. When performing this task, the vehicle must be on the ground and not on a flyover or lift. Lock the machine in place by lifting the lever parking brake. Place chocks under the rear wheels.
12. Using a jack, raise the front of the car and remove the wheels. Then finally unscrew the hub nuts and remove the washers installed under them. Dismantled parts (we are talking about nuts) must be replaced. Disconnect and remove rotary devices from the suspension arms, first unscrew the fixing screws, use a 17 wrench. Dismantle both drives by pressing them out of their seats. Place a support under the gearbox so as not to damage the unit.
13. Remove the screws securing the transmission to the motor, this will require a 19 wrench. Then move the unit as far as possible. The procedure for removing the gearbox is completed. Assembly is carried out in reverse order.

User Andrey Florida made a video about replacing the gearbox on the Priore, this video will allow you to understand the process of dismantling the unit in garage conditions.

How to change the bushings of the gearbox lever axle?

If the reason for the poor engagement of the first gear on the Priore is the failure of the bushings of the lever axis, the elements are replaced as follows:

1. Remove the tunnel lining on the floor of the machine.
2. Using a 13mm wrench, remove the nut that secures the gear lever axle.
3. Remove the screw fixing the axle support, after which the lever is moved to the side and dismantled as an assembly with the assembly.
4. Before you are two plastic and one remote bushings. If these elements fail, the parts must be replaced. Please note that plastic bushings are split by design, do not confuse a cut with damage.
5. Install all elements in reverse order. Before installing the bushings, lubricate with Litol.

How to change oil?

If you have filled the car with oil that does not meet the specification of the gearbox, it will have to be replaced:

1. The car is driven into a garage with a pit or onto a flyover.
2. Unscrew the screws securing the mudguard power unit, then dismantle it.
3. Locate the drain hole on the gearbox under the bottom of the car. Substitute a container under it in which you will collect used oil. Remove the plug with a wrench and wait for the fluid to come out of the transmission. Lid drain hole after dismantling, it must be cleaned, all wear products and traces of dirt must be removed from it.
4. Assess the quality of the drained oil. If it is too dirty, then it is advisable to flush the transmission unit. First, about 1.3 liters of flushing agent is poured into the crankcase of the box, the filler neck is closed. After that, the front wheels of the car are hung on a jack, the engine starts. The motor should run at low speeds, while turning on the first speed. Repeat the procedure for draining the flushing agent. If necessary, perform cleaning again.
5. Remove the dipstick from the inspection hole. The procedure for filling in fresh liquid is carried out by means of a syringe with a connected hose. So much lubricant is poured into the gearbox housing so that its level is in the region of the MAX mark on the meter. This will require about 3.1 liters of liquid. Then the probe is installed in the technological hole to the end.
6. Install the motor mudguard. Carry out a test drive on the machine, wait until the transmission cools down, then check the lubrication level again.

1. Remove the drain plug and drain the oil 2. Remove the dipstick and use a syringe to fill the hole with fresh grease

How to replace the clutch cable?

The repair procedure is as follows:

1. Follow the first five steps in the transmission removal instructions. Remove the damaged cable from its seat.
2. The new part must be passed through the technological hole located in the front panel.
3. Fix the body of the compensating mechanism on the so-called pedal pin. Previously, this element is processed by Litol.
4. Install the end of the cable sheath in the transmission mount, tighten the fixing nut.
5. Install the drive cable to its original position. When installing, remember that the distance between the leash and the fork should be no more than 27 mm.
6. Press the clutch pedal five times, then check the distance again. If it has changed, adjust the mechanism.

How to change the ball joint and spherical washer?

These parts are replaced as follows:

1. Repeat the first three points from the instructions for dismantling and changing the arm axle bushings. This will allow access to the retaining ring, this element is pry off with a flat-tip screwdriver.
2. Remove the ball joint from its seat. At the same time, remove the spring element.
3. Perform a visual inspection of the reverse lock mounting pad. Inspect the plastic axle stop, if it is damaged, then change it. To dismantle the lining, it is necessary to unscrew the fixing screw and nuts.
4. By doing this, you have access to the spherical washer. By moving it, you can remove the support. Damaged items must be replaced. The same applies to the spring, which must be changed. All components are assembled in reverse order.

One of the popular Russian market manufactured by AvtoVAZ is budget car LADA Priora. As is typical for all cars, Priora has undergone many improvements and changes since entering the market, but vulnerabilities unfortunately remained. Therefore, further will be considered weak sides, illnesses and shortcomings of the domestic car Lada Priora. In this material, there will be no mention of the engine and gearbox, since there are cases of failure of individual elements of these units, but this is not a mass phenomenon.

Weaknesses of LADA Priora

• Thermostat;
• Electric power steering;
• Electronics in general;
• CV joints and thrust bearings;
• Sensors;
• Ignition coil;
• Fuel pump fuse;
• Voltage regulator.

Now more…

The thermostat is one of problem areas engine cooling system Lada Priora. Even before the required service life of the thermostat, the thermostat valve may fail to operate. Therefore, the most unpleasant thing is to constantly monitor the engine temperature indicator. The main reasons why a thermostat can fail are scale, dirt and corrosion. When buying, you need to ask the owner when the last replacement of this element in the cooling system was. And for the future, it is necessary to fill in only high-quality coolant.

Electric power steering.

Before buying, it is necessary to check the operation of the electric amplifier during a test run. If there are jerks or when turning, it becomes noticeably harder to steer, then these are the most important signs of a failure of the electric power steering. It is important to know that on most Priora cars, the malfunction may not be in the electric power steering itself, but in the contacts. Therefore, in the future, in the event of a similar problem, it is necessary to check and clean the contacts.

Electronics.

As in earlier releases of Priora, electronics to this day does not surprise the owners of these cars with its quality. First of all, power windows can fail. Further, the heater fan, etc., can bring trouble. It is important to remember that eliminating “jambs” in electronics is not such an expensive job, but in this case one thing causes irritation - this is the frequency of their manifestation.

CV joints and thrust bearings.

The problem with CV joints is known firsthand to all owners of these cars. Indeed, quite often CV joints cause a lot of trouble, although the manufacturer is assured that CV joints are made of durable materials. Therefore, we can conclude that this is a design flaw. When inspecting and checking a car before buying, you must also drive, listen and feel if there is a characteristic crunch when cornering or sharp acceleration. It is important to remember that often even with a run warranty car CV joints failed in the region of 2000-5000 km. run.

With bearings, too, everything is clear. But in this case, I would like to say that this element is subjected to heavy loads and is the main working element of the upper support. front shock absorber. But again it was possible to put more wear-resistant bearings. A characteristic sign of the failure of the “support” is knocks in the upper part of the rack when driving over bumps.

Sensors in particular engine.

Sensors are a really serious disease of Lada Priora. Moreover, these elements can fail, regardless of the period of operation and mileage of the car, and periodically repeat. Before buying a car, you need to know about this.

Voltage regulator.

The voltage regulator can be said to be not finalized. There is no getting away from this and you will have to put up with it, although some craftsmen are working on it themselves and the problem with the frequent discharge of the battery disappears. Therefore, before buying, you need to know about this and ask the seller if any work was done in this direction during the period of its operation Priora.

Fuel pump fuse.

Often, the fuel pump fuse may fail on the Priore. It is worth noting that this element is not an expensive thing, but it causes problems. A sign of failure is a noticeable phenomenon for everyone - it's just that the car will not be able to start.

Ignition coil.

Everyone knows such a thing as an engine troit - therefore, the ignition coil must have failed. The motor does not start to work at full power.

Like most domestic cars LKP on Priore is not famous for its quality. The arches of the front and rear wheels, as well as the bottom of the front and rear doors. When buying a car, you need to ask if the previous owner treated it with anti-corrosion mastic. Otherwise, it must be done after purchase.

The main disadvantages of Lada Priora (VAZ-2170)

1. Very poor sound insulation;
2. Poor build quality inside ("crickets", etc.);
3. Uneven distribution of air flows from the driver when the stove is turned on at the feet;
4. Low resource of spare parts;
5. Little space for rear passengers.

Output.

In conclusion, we can say that, according to the majority of owners of LADA Priora this car worth your money. Yes! There are frequently broken individual elements, but their price is not cosmic. When buying, the most important thing is to responsibly inspect and check the car for the absence of visible and invisible defects.

P.S: Write in the comments about the shortcomings and weak points your car.

Weaknesses and shortcomings of Lada Priora (VAZ-2170) was last modified: October 19th, 2018 by Administrator

Did you let the car down?

Car owners complain that their car does not start well when hot. If in the morning the vehicle can be started well, then after a slight drive and a plug to start the engine, you will need to turn the starter by pressing the gas. At the same time, it starts to smell like gasoline and troit for a few seconds.

• fuel and air filters,
• installing a thick textolite gasket under the fuel pump,
• nozzles,
• ignition module,
• water temperature sensor.

If the car does not start well when cold, then the problem may be due to the use of low-quality gasoline. In this case, it is necessary to refuel only at proven gas stations. Another reason why Priora starts up worse in cold weather is the loss of part of its capacity by the battery. The starter turns harder. The oil loses its viscosity, becoming thick. At low temperatures it is recommended to pour synthetic.

As a rule, it takes 1-2 rotations of the starter armature shaft to start the car. A vehicle that is in good condition will not start badly when hot or cold. To do this, auto mechanics advise owners of Lada Priora to adhere to the following recommendations:

Advice	clarification
Pour a lot of gasoline into the tank.	Otherwise, condensation will form. Water cannot enter the fuel.
Before you start the car in the cold, you need to turn on the high beam for a couple of seconds.	This step will allow in cold weather to restore part of the capacity of the machine due to the vehicle processes.
If there is an injector, then you will need to turn on the ignition and wait. At the carburetor it is necessary to pump up gasoline manually.	During this time, normal pressure will be created in the fuel system. In any case, you do not need to overdo it, as the spark plugs will flood.
You can add some gasoline to the oil before leaving home.	The car will cool down, and the oil will not lose its viscosity. When the car starts, the gasoline evaporates. The main thing is not to pour fuel.

Check all components of the ignition system

Working in winter - problem solving

Auto mechanics recommend Priora owners to start the car correctly in the cold season. When starting the car, do not turn the starter for more than 20 seconds. Otherwise, the battery will quickly run out, but the Lada will not start. To warm up the car, you need to turn on the dipped beam for 1-2 minutes.

Availability injection engine does not include pressing the gas pedal at start-up. For mechanical box gears, you will need to depress the clutch pedal before starting. You can not start Lada with a push, as this can harm her.

If the car does not start, then you need to open the hood and check the spark plugs, and also see if the wires are attached to the battery. An extreme method of starting an engine is to use an ether compound. It must be injected into intake manifold. You can buy this tool in a specialized car shop.

Main reasons

First, check the battery

“I start the Priora, but the starter does not turn.” How to solve this problem, not all car owners know. There are several reasons for this condition. The battery needs to be checked first. If it is faulty or not charged, respectively, the starter does not turn. Contacts must be well tightened and oxidized. If a click occurs when the ignition is turned on, then the wires are normal and power is supplied. The battery will need to be charged. If the lights go out when the ignition is turned on, then you need to charge the old power supply or install a new one.

The starter does not turn and there is no click - the main reasons for checking the battery on another machine. In the case of a quick start of the car, you will need to check the wiring on the first vehicle. Often the power supply is working, but the starter does not turn. In such a situation, the nickels in the solenoid relay are checked, as well as the generator brushes. If there is smoke coming from the starter, then it will need to be replaced.

Due to a break in the ground wire connecting the body to the power unit, the car will not start. This is due to the heating of the brake cable, clutch or gas. This happens when, after repair, it is not put in place. If the starter turns, but the engine does not spin, then the ring in the gearbox of the first unit has burst and needs to be replaced.

Hot work

Problems with the engine arise not only in frost, but also in the freshly working Lada. Many car owners are faced with a situation where a hot engine does not start after a stop. Some drivers start to turn the starter, discharging the battery.

Smoke is a warning sign

The main problem is that when the engine is running, a large amount of air passes through the carburetor, due to which the engine cools. The same happens with gasoline. When the engine is running, the carburetor temperature is lower than the engine temperature. This difference is only stored during the workflow. As soon as the engine stops, the carburetor begins to heat up intensely from the red-hot engine case.

Since there is no air flow, it heats up to the temperature of the motor in a couple of minutes. Remaining in float chamber gasoline begins to evaporate rapidly due to high temperature, thus filling the voids, including the intake manifold, carburetor and air filter. Gradually, the fuel evaporates, and nothing remains in the float chamber.

The duration of this process depends on the idle time after a long trip, including the ambient temperature. If the engine is started within 5-30 minutes, then a mixture enriched with fuel vapor will enter the combustion chamber. As a result, the spark plugs will flood, and the car will not start.

Solving major problems

In order for the engine to start well on a hot one, it is necessary to follow certain instructions. The main task is to combine the mixture to start the engine. When starting a hot engine, depress the gas pedal halfway. With frequent pressure on the gas, the situation can become more complicated.

In some cases, Priora stalls during her movement. Usually this phenomenon is typical for summer weather, when the ambient temperature exceeds +25 degrees. The main reason is gas plugs in the fuel pump. They do not give normally. As a result, nothing remains in the float chamber, since no fuel enters it.

This problem can be solved by cooling the fuel pump. To do this, you need to take a damp cloth and wrap it around fuel pump. This method is relevant for Priora with an all-metal fuel pump. Models in which glass is used, this method is ineffective, since the glass will burst from temperature changes. If prolonged cooling did not contribute to starting a hot engine, then the problem is in the fuel pump.

Engine starting problems

Many Priora car owners are faced with a situation where the starter turns, but the car does not start. Before finding out the reasons for the breakdown of this transport, it is recommended to find out the principle of operation of the starter. This device is presented in the form of an electric motor with a gear that engages with the engine flywheel and rotates it when it starts. On the case there is a retractor relay, which is designed to control the course of the gear and auto start electric motor.

When the ignition key is turned to the start position, power is supplied to the relay and is drawn in by the electromagnet, moving the gear and at the same time closing the contacts. Thus, the electric motor is started. When the ignition key is released, power is no longer supplied to the relay magnet. The last element works in the opposite direction, opening the contacts. As a result, the operation of the electric starter stops.

If the starter turns, the battery is in good condition, but the car does not start, then it is recommended:

• touch the wires that come from the power supply. In case of their heating, the contact in their connection with the battery is checked,
• put the clamps in place
• check the connection of the earth terminal with the body,
• turn the ignition key to the “start” position and measure the voltage at the connector using a tester,
• check if power is supplied to the relay from the ignition switch by disconnecting the connector from the solenoid relay.

Spark plugs may be faulty.

Otherwise, you will need to remove the starter. To do this, disconnect the terminals from the battery and unscrew the air filter. After dismantling it, it turns away and removes the positive wire from the starter terminal. After disconnecting the connector from the relay, the fastening nuts of the last unit are unscrewed.

An important point in this matter is to check the operation of the relay. With the help of emergency wires for “lighting up”, the negative wire from the battery is connected to the electric starter housing. Positive - closes to the relay connector. In this case, the last element should work by throwing the gear forward. Otherwise, the relay will need to be replaced.

Lada Priora is a family of cars of the Volga Automobile Plant, which replaced the Lada 110 family of cars. Priora has been significantly improved and refined. But like most cars domestic production, with it very often there are problems. One of the most common problems is that the car does not pull.

Pulling a car or not pulling depends on many factors, most related to work power plant. Although there is a possibility of failure of other mechanisms of the Lada Priora.

Loss of traction not related to the engine

The engine is the tireless heart of the car

If the engine does not arouse suspicion, and the car does not pull, then this indicates a clutch malfunction. Destruction of the lining of the clutch disc or damage to the springs leads to the fact that the clutch transmits torque from the engine to the gearbox only partially, slipping of the clutch occurs.

With such a malfunction, any car, including Priora, pulls very badly.

It is quite easy to identify this error. When slipping, the lining of the driven disk overheats greatly, and a specific smell appears. The malfunction is eliminated by replacing worn or damaged clutch elements.

Loss of thrust due to a power failure

But still, if a drop in power is noticed, and the car pulls poorly, you need to look for the cause in the power unit.

As with most cars, in the event of a malfunction such as loss of power, the check must begin with the engine power system, the ignition system and the gas distribution mechanism.

Cause	Description
Poor quality fuel	Such gasoline, having a large amount of impurities and water, causes engine interruptions and loss of power. In order to get rid of the consequences of using low-quality gasoline, it will be necessary to flush the power system.
Gasoline pump	.In some cases, when the car drives normally at low speeds, and a drop in power is observed only at high speeds, it indicates that the performance of the fuel pump does not correspond to these speeds. To eliminate the malfunction, you need to check the condition of the fuel pump, if necessary, flush it and check the performance.
Fuel filter	With severe contamination, its throughput is significantly reduced, and the required amount of fuel does not enter the cylinders.
nozzles	In case of malfunction of these elements of the power supply system of the power unit, its unstable operation and a drop in power occur. Often the problem of injector malfunction is solved by flushing the power system.

Diagnostics of the fuel pump

If all fuel supply mechanisms are working properly, the air supply system should be checked:
Need to check status air filter, if heavily soiled, it is replaced.

After checking the filter, you need to pay attention to the performance of the sensor mass flow air and throttle position sensor.

When they work incorrectly the electronic unit control, they give readings that do not correspond to the driving mode, which leads to a loss.

If everything is in order with the power system, but the car does not pull, you should check the oxygen concentration sensor in the exhaust gases, also known as the lambda probe. If it malfunctions, the car begins to consume fuel and lose power.

Loss of traction due to faulty ignition system

Followed by . Glow plugs are checked first. They must supply a spark to the cylinder at the right moment. If interruptions in the operation of the candle are noticed, you should also check the ignition coil, which supplies voltage to the faulty candle, at the same time, it is quite possible that the malfunction lies in it.

After checking the candles and coils, you need to pay attention to the crankshaft and camshaft position sensors. Incorrect data from these sensors, which they transmit to the control unit, can cause interruptions in engine performance. In case of detection of interruptions in the functioning of these sensors, they are replaced.

The electronic control unit (ECU) is checked last in the ignition system, since it is responsible for the fuel supply and the correct timing of sparking. Violation in his work often leads to a significant loss of power. In some cases, in order to restore the efficiency of the computer, it is necessary to carry out its firmware. Often the firmware removes the problem of power loss of the power plant. But there are times when a replacement control unit is required.

Loss of traction due to improper assembly or engine wear

Often the problem of power loss of the power unit is a mismatch in the position of the label camshaft with a mark on the body, due to which the valve timing is disturbed in the engine.

First, the coincidence of the camshaft marks is checked. With the correct position of the marks on the camshaft, you should also check the coincidence of the marks and on crankshaft. Often a mismatch in labels occurs on it.

The classic way to start a broken car

Incorrect adjustment of the valve clearances of the gas distribution mechanism can also cause a loss of power of the power plant. If the gaps are set incorrectly, the valve timing is disturbed, which leads to a decrease in the power of the power plant. To eliminate the malfunction, check the valve clearances and, if necessary, make adjustments.

Finally, you should check the compression in the engine cylinders. With heavy wear compression rings compression in the cylinders drops, which leads to a decrease in engine power. The fault is eliminated by replacing the rings.

Priora engine resource: we study design and resource features

The solution to the problem comes from the cause of the malfunction. If you leave the battery in the cold in the car, its discharge may be the best possible outcome.

Therefore, do not be lazy to remove the battery and take it to a warm apartment for the night if your car lives on the street or in an unheated garage.

Concerning engine oil- This is a common mistake novice motorists make. Bought a car in the summer summer oil, and even with mineral, but before the frosts did not drain. Here it also freezes, and quickly enough. If you are faced with such a problem - there is nothing to do. There is a temporary solution, but quite dangerous. It is necessary to pour a little gasoline into the oil filler neck and crank the crankshaft with the starter several times, then leave the car for 24 hours. The oil will become less thick, but in this case you will soon have to change:

1. Rings.
2. Oil caps.

Therefore, immediately advice for novice motorists: with the onset of frost, drain mineral oil from the engine. The sooner you do this, the lower the risk of a problem. Experienced drivers it is advised to pour semi-synthetics for the winter, which can withstand much lower temperatures.

Other reasons why the car won't start

If you are sure that everything is in order with the battery and oil, then you need to consider other likely causes of the failure. It is possible that they will require additional time and effort from you. Consider the most common occurrences:

• problems with fuel system. There can be many reasons for this, ranging from problems with the gasoline pump to freezing water in the fuel rail;
• failure of the antifreeze temperature control sensor, which also prevents the engine from starting on a cold one. In this case, it will need to be replaced;
• lack of tightness in the nozzles. Depressurization is allowed at the level of 1-2 drops per minute, but no more. If a depressurization occurs, the pressure in the fuel rail will quickly decrease after the engine is stopped, so if you manage to start, be sure to follow this up. In this case, you will have to install new nozzles.

Separately, it is necessary to consider such a case as a drop in compression in the cylinders. Symptoms of a malfunction are easy to notice by the behavior of the car: engine power and dynamic qualities drop significantly. The engine can triple and absorb more fuel. It is not difficult to identify the problem; this requires a special device - a compression gauge. It is recommended to visit the service station, where you will be measured in compliance with all the rules, or you can take it at home.

If the pressure in the cylinders has collapsed, this often indicates the wear of the engine as a whole. Actually, there is a fairly simple way to check the guess. It is necessary to pour 1 tablespoon of oil into the hole for the candle, and then repeat the measurements. The results may be as follows:

1. Sudden jump. This suggests that piston rings depressurized.
2. Indications unchanged. There can be a lot of reasons here, ranging from the lack of tightness of the valves to the burnout of the combustion chamber.

If the pressure of the cylinders is normal, then you need to deliver the car to the service station and conduct an in-depth engine diagnostics, the problem is very serious.

Car doesn't start well

If the car does not start well when cold, then everything is not so bad. The reasons are completely removable even at home. As a rule, the problems lie in the following:

• disgusting quality of gasoline. If the refill has over-diluted it, there will be too much water in the tank. Try visiting another gas station;
• ignition problems. It is often difficult to start the engine due to problems with high voltage wires and spark plugs;
• oxygen sensor malfunction.