"Lada Priora" does not start: possible reasons

"Lada Priora" is a people's favoritethe Russian car. In general, this is a good machine. But sometimes it happens that "Priora" does not start. The owners of both new cars and good-mileage specimens can face this. For such "behavior" there are a number of reasons that need to be considered. This information will be very useful for novice drivers.

Why the engine does not start?

In order for the engine to successfully start,it is necessary that the four conditions be met. This is a sufficient speed of the crankshaft, a good level of compression, sufficient battery voltage, as well as the composition of the fuel mixture. Therefore, if the car "Priora" does not start, you can assume that some of the conditions are not met. To check this, you should analyze the situation.

If the unit does not want to start, then the first thingusually check - it's a starter, battery, high-voltage wires. Is the starter working normally, is there any suspicious sound in the process of its operation? Was there a replacement starter or battery? If the latter is discharged, then check the generator - how well it charges the battery. And maybe there are any problems in the electrical part? If you answer these questions, you can easily find out where the problem hides.

Starting the Priory engine and battery

What happens when a warrior turns a key inand try to start the engine? The starter starts, which cranks the crankshaft. If there is no reaction to turn the key, then look at the battery charge level. Most starters will not work if the voltage drops below 10 volts. However, low voltages do not necessarily indicate a malfunction in the battery. The battery could be corrupted due to long attempts to start the car. Also often in insufficient charge the generator is to blame. If there is no "Priora" and there are similar symptoms, then experts recommend charging the battery and after a while try again.

Further often, attempts are made to establish a powerThe unit with the use of a working battery or charging equipment. When the car starts and rides, then it should be assumed that the battery was discharged or defective. If the battery receives the charging current and passes all the tests, then check the efficiency on the charger.

Testing the generator

Correctly working car generatorproduces a voltage of approximately 14 volts at idle when the electrical equipment is off. At the time of the first start, the voltage should increase rapidly - it will be 2 V or more. Then the current growth gradually decreases and is equalized. This value will vary depending on how charged the battery is, what the load is on the botnet, and also on the temperature. The smaller it is, the higher the charge voltage. The charging current from the standard "Priora" generator can range from 12.9 V to 14.8 V in frosty weather.

If the generator does not produce the required voltage,most likely, "Priora" does not start because of him. But there can still be a breakdown in the current regulator. To check if the generator works correctly, it is connected bypassing the regulator. Also it is possible to conduct bench tests at the service station. If the generator voltage is increased,it is necessary to replace the regulator relay. Sometimes there are fluctuations if there is a problem with the computer. If the output voltage level does not change, the generator must be replaced. In the device there is a rectifying unit - one or several diodes in it regularly fail. The power of the generator falls. It will also produce tension. However, it will not be enough to fully charge the battery.

The starter does not rotate or turns slowly

It happens that the "Priora" does not start, and at the same timethe starter does not spin at all or rotates very slowly. In this case, it is recommended to focus on the element circuit. For quick diagnosis, headlights are switched on and observe what happens when the driver starts the engine. If the headlights start to go out, this may indicate the oxidized contacts of the traction relay and the mass. In this case, it is recommended to carefully check the contacts.

The reason why the starter rotates veryslowly, is the insufficient cross-section of the cable that is connected to the battery. Some inexpensive products are made of thin wire in a thick insulating layer. At first glance it seems that the size is correct, however it is not. If the headlights do not change their brightness during the start of the motor, and the starter does not spin, the reason is that the current does not reach the starter. In this case, check the starter relay, the "parking - start" switch and the ignition switch. Fuses could also burn out.

The starter clicks, the engine does not start

In this case, there is not enough current to scrollstarter, or it failed. The problems are in the wires or the relay. It is recommended to check the voltage on the relay and find out if the current flows from the battery through the ignition switch. If the relay receives a voltage, but the contacts do not close, then it must be replaced. When the starter rotates bypass, the cause is also in the relay.

Weak starter

If Lada Priora does not start, then the possiblethe reason is too weak an element. It simply can not rotate the crankshaft to a minimum of 300 rpm. In this case, the required compression is not provided. Even if the starter manages to untwist the crankshaft to the required speed, the engine still does not start, because for the unwinding the entire energy of the battery is taken. It is not enough for the work of the injectors and the ignition system.

If the "Priora" does not start, the starter turns, thenthere can be several reasons. The first step is to check the fuse. To do this, use the indicator in the form of a screwdriver. Also, the reason can be in a discharged battery. Such behavior may be the defects of the ignition switch or corrosion on any part in the electrical system. Often the starter itself is oxidized. It is recommended to test the ignition coil. To do this, use a tester or multimeter. In case of malfunction, the coil is recommended to be replaced, and then the problem will be solved.

Ignition system

"Priora" is not started, and for reasonsmalfunctions in the ignition system. It is quite easy to check the ignition. It is necessary to use the indicator of work of candles or to establish a high-voltage wire near to weight. If there is no spark, several faults are possible - failure of the ignition unit, problems with the crankshaft position sensor, distributor sensor. For a full diagnosis, you can use the "Ignition System Simulator". It will easily establish whether a coil and ignition unit can create a spark. If it is created, then look towards the distributor sensors and the crankshaft position. If there is no spark, then this is a block or a coil. With the help of measurements of primary and secondary stresses, this element can be eliminated on it.

Fuel supply system

This is quite a frequent reason.If the Priora machine is not started, it is recommended to check the pressure in the fuel system using a manometer. If the ignition is switched off, then check the gasoline pump and its relay, as well as fuses.

The problem can also be clogged upfuel line or a stuffed suction pipe in the tank. Also one of the popular reasons is the quality of the fuel. Often the gasoline contains a lot of alcohol or water. Among the reasons is the injectors.The driver, during their work, should hear a characteristic sound - clicking. If not, then check the voltage and ground. In this case, there may be a problem with the computer or the power system relay.

If fuel is supplied, there is a spark, but the engine does not start

If the "Priora" is not started in this case, the reasonscan be in the level of compression, flooded with candles. This phenomenon happens after a strong overheating of the motor. Fills the candles for almost everyone. In this case, you need to use a candle key to unscrew the elements and to diagnose them. Sometimes it's enough just to wipe the candles. But it is better to replace them entirely with new ones.

Conclusion

Naturally, this is not all the reasons why,why do not start "Priora". We have considered only the frequently observed ones. To exclude such cases, it is necessary to regularly service the car, and then the car will be started in any conditions.