"Lada Priora" does not start: possible reasons

"Lada Priora" is a popular Russian car that you love. 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. There are a number of reasons for this "behavior" that need to be considered. This information will be very useful for novice drivers.

Why does not the engine start?

In order for the motor to successfully start, it is necessary that the four conditions are 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, the first thing that is usually checked is the 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. Or 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 the warrior turns the key in the ignition and tries to start the engine? The starter starts, which cranks the crankshaft. If there is no reaction to turn the key, then they 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 the generator is to blame for the insufficient charge. 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 start the power unit using 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 takes charge current and passes all tests, then check the efficiency on the charger.

Testing the generator

A correctly working car generator generates 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. Charging current from a 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, it is likely that Priora does not start because of it. But still there can be a breakdown in the current regulator. To check if the generator works correctly, it is connected to bypass the regulator. It is also possible to conduct bench tests at the service station. If the generator voltage is increased, the controller relay must be replaced . 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. In this case, 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 thus the 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 the starter rotates very slowly 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, the current is not enough to scroll the starter, 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 around, the cause is also in the relay.

Weak starter

If Lada Priora does not start, then the possible reason is too weak an element. He simply can not scroll the crankshaft to a minimum of 300 rpm. In this case, the required compression is not provided. Even if the starter manages to unscrew the crankshaft to the required speed, the engine still does not start, since all the energy of the battery is taken to unwind. It is not enough for the work of the injectors and the ignition system.

If the "Priora" does not start, the starter turns, there 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. This behavior may result in defects in 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 the reasons of malfunctions 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 is easy to determine 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 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. Also, the problem may be a clogged fuel line or a stuffed suction nozzle in the tank. Also one of the popular reasons is the quality of 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 - a click. 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 arrives, there is a spark, but the engine does not start

If the "Priora" does not start in this case, the reasons can be in the level of compression, filled 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 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 "Priora" is not started. 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.