To start the engine, you need to ensure that a spark appears at a certain moment to ignite the air-fuel mixture in the cylinders. Problems with starting the engine occur if one or more elements of the system malfunction. The table lists possible reasons why the Priora does not start.
Why does the starter click and the engine does not start?
In this situation, most likely there is not enough voltage to make it start rotating. Sometimes such sounds indicate a breakdown of this unit. What apparently happened here:
- traction relay failure;
- broken wires;
- short circuit.
You need to find out whether the relay is receiving voltage and whether there is a contact in the ignition system. If there are no problems with the power supply, then the executing node itself has failed.
Connecting the starter directly allows you to make sure that it is the electromagnetic relay that is broken. It cannot be repaired, and therefore it will need to be replaced with a new one; fortunately, the cost of the element is low.
If the starter has recently been replaced, then perhaps the strength of the new one is simply not enough to rotate the crankshaft. In this situation it will work, but the engine will not start. At the same time, it drains the battery charge very quickly. This, in turn, will not allow the engine to start, even if it is possible to bring the revolutions to a minimum of 300.
The thing is that the injectors operate (as well as the ignition system) on electricity, but there simply isn’t enough of it.
Ignition
Ignition problems, as experts say, occur quite often in Priora. It is relatively easy to verify the functionality of this system. This is done by checking for the presence of a spark on the spark plugs. If it is not there, then it is possible that:
- the ignition unit is broken;
- The crankshaft and distributor sensors do not work correctly.
To conduct a full diagnosis, you will need to visit a car repair shop. Here, special equipment is used, through which it is easy to determine which element is causing the problem.
If there is no spark at the spark plugs, we can say with a high degree of confidence that they have failed:
- ignition unit;
- his reel.
Sources of the problem
Communities Lada Priora Lada Priora Club Blog what is affected by the clutch release switch
The reasons why the Lada Priora does not start may be a malfunction in the fuel system:
- clogged fuel filters;
- failure of the fuel pump;
- lack of gasoline in the tank;
- clogged injectors;
- condensate freezing in the fuel line.
Having certain skills, every car enthusiast can fix these faults with his own hands. First you should check whether gasoline is supplied to the ramp with injectors. To do this, you need to disconnect the fuel hose from the rail and connect the pressure gauge. Then ask an assistant to start the engine. When the fuel pump is running, the pressure in the fuel line should be 2.7 atmospheres. If the pressure is lower than specified, you should look for the cause in the fuel filters.
A complete lack of pressure when a voltage of 12 V is applied means that the fuel pump has failed. To fix the problem, you need to replace the fine filter, wash or change the fuel pump filter, or replace its electric motor.
If the pressure in the fuel line is normal, the cause should be sought in the injector rail. You need to remove it from the engine, wash it with a special liquid and blow out all the holes with compressed air. To prevent condensate freezing from causing a lack of fuel supply, repair work should be carried out in a warm room.
List of possible malfunctions related to the operation of electrical equipment:
- Insufficient battery charge.
- Battery terminals are oxidized.
- The starter does not work.
- The traction relay is faulty.
- The timing belt is broken.
- Malfunction of the electronic control unit.
- The valve timing is disrupted.
- Severe contamination of high-voltage wires or lack of contact.
- Pulse transformers are faulty.
- The fuses responsible for the operation of the ignition system and starter have blown.
- Spark plugs are flooded or faulty.
- Burnt ignition switch terminals.
- The immobilizer is faulty.
Before you start looking for these problems, you need to make sure that the contacts and connections of all wires are reliable, that there is no oxidation, breaks or abrasions.
Pay attention to electrical wiring
The correct position and connection of wires in the system are also important. Often the wire “comes off”, which causes ignition problems. The fix is simple: you need to connect it back and, in general, check that all connections are correct and that they correspond to the electrical circuit of the car.
The ignition system itself, either as a whole or its individual elements, is also subject to breakdown; it must be checked using a tester. Another common cause of problems with starting the power unit is irregularities in the fuel supply, the culprits of which may be the relay and fuse of the fuel pump. This is diagnosed by the absence of sounds from the pump, and the correct solution is to replace it.
Repair and replacement of the engine start switch
Lada Priora hatchback Logbook Steering rack repair
The ignition switch of the Lada Priora is an electromechanical device consisting of a contact group and electrical communications. This engine starting system component wears out when the tracks are switched on and off repeatedly. When they are mechanically damaged, current conductivity deteriorates, resistance and temperature in the contact area increase, which leads to their burning. Another reason for ignition switch failure is the breakdown of plastic parts.
Malfunctions associated with problems with electrical connectors arise due to overload of the contact group caused by the connection of additional high-power devices. Another problem is short circuit. On the latest car models, modified designs are installed that have a more reliable contact group. If these defects are detected, the Priora ignition switch with immobilizer assembly will need to be replaced.
First you need to disconnect the negative battery terminal, then remove the plastic steering column cover, the electrical connector of the main wiring harness and the instrument mode switch. The next step is the most difficult: you need to remove the screws securing the lock to the steering column. They have round tear-off caps that provide an additional degree of security for access to the ignition switch. For this reason, they should be unscrewed carefully, using a special sharp chisel, lightly tapping it with a hammer. It is enough to make one turn of the screw to be able to unscrew it by hand. By unscrewing all four fasteners, you can remove the lock fixing bracket. The final stage is to disconnect the plug of the contact group. After replacement, installation of the removed parts is carried out in the reverse order.
Why the engine won't start
LADA Priora 1.8L Premier
In order for the unit to start successfully, the following conditions must be met:
- normal crankshaft speed has been reached;
- appropriate compression;
- not bad battery charging;
- high quality fuel.
Thus, if the Priora’s engine does not start, you should suspect a problem with one of the points listed above.
First, understanding motorists inspect:
If the latter is fully operational, you should make sure that it rotates as usual. A problem occurs from time to time if the battery was recently changed, or other parts that allow for accounting (software) of the start-up.
The lack of voltage in the battery requires a check and a generator, since it must charge it. With all this, quite often over time, the contacts in the car’s electrical circuits oxidize, become dirty, or, in other words, simply become disconnected. We need to take this into account.
As practice shows, many reasons in most cases lie in the inability to start when cold.
Generator
When this element is working properly, it produces a voltage within 14 volts, provided that the engine is idling and there is no load on the vehicle's electrical system.
In this case, the first start leads to an increase in voltage by 2 volts. Later, stabilization occurs to standard levels. They are also affected by:
- battery condition;
- load;
- air temperature.
Problems with the generator are very often the reason for the inability to start the engine. In cold weather, the voltage can fluctuate from minimum values (12.9) to maximum values of 14.8 volts.
The 16-valve Priora in such a situation needs to have its generator inspected. It is easy to verify its functionality by connecting the power directly, bypassing the regulator. If it is possible to detect excess voltage, the latter relay needs to be replaced.
Why does the starter spin for a long time when starting? List of possible problems
- Long service life of the car and, as a result, severe wear of the starter brushes. The way out is to remove the starter cover and replace the two brushes;
- The entry of specks and various debris through the gas tank leads to the fine filter becoming clogged and limiting the fall of fuel into the combustion chamber. It is necessary to clean the tank using liquid aerosols, remove it and wash it, change the filter for a new one, go to a car service for a comprehensive repair, in case of a serious diagnosis;
- Depending on the operating conditions, the air filter has absorbed a large amount of dust and small particles, which is no longer capable of passing air flows to enrich the fuel. A complete replacement of such a unit is necessary;
- The age of the car, as well as the mileage, can cause the compression in the cylinders to significantly decrease. As a result, gases penetrate into the engine crankcase and the entire ignition process goes down the drain. It is advisable to carry out ring tossing or major repairs in advanced forms of the disease;
- Light brown color – working condition, original color;
- Black: rich mixture in the combustion chamber. Fuel overdose. The reason is the carburetor or injector;
- White soot: lean mixture. Lack of fuel. The reasons are similar to fortified formula;
- Brown: fuel quality is very low and contains metal impurities. Use something else (see the article “Which gas stations are best to refuel at”).
Troubleshooting Starter Problems
The starter is an important element of the engine starting system. Its task is to ensure vigorous rotation of the crankshaft, which transmits translational motion to the piston group, creating the necessary degree of compression in the combustion chamber and removing exhaust gases.
Basic starter malfunctions:
- short circuit in the traction relay winding;
- oxidation of wire tips;
- bendix jammed;
- break or short circuit in the starter winding;
- worn or damaged starter brushes.
First, you should conduct an external inspection of the Priora starter fuse: check the condition of the contacts, clean the oxidized terminals. It is necessary to evaluate the reliability of the ground connection with the engine and body. Then you need to try to start the car again. If the Lada Priora starter traction relay clicks, but it does not spin, the breakdown needs to be repaired.
If the device fails in the field, when it is not possible to contact a service station, you can jump start the car. For this you will need an assistant. Having accelerated the car with the ignition on, you need to quickly engage second gear and release the clutch: the car starts to twitch, but after two or three jerks it starts. This is the most popular method of starting the engine when the battery is dead or the starter is faulty, but it can only be used on vehicles with a manual transmission.
Repairing the Lada Priora starter can be done by removing it from the engine: this makes it easier to carry out preventive maintenance, unlock the bendex, and replace brushes. If a winding break occurs, you need to install a new starter assembly, and it is advisable to do this on a cold engine.
Some tips
Did your car fail? Car owners complain that their car has difficulty starting when hot. If in the morning the vehicle can be started well, then after a short drive and turning off the engine, you will need to turn the starter while pressing the gas to start the engine. At the same time, it starts to smell like gasoline and stops for a few seconds.
Auto mechanics recommend solving this problem by replacing the following parts:
- spark plugs,
- fuel and air filters,
- installing a thick textolite gasket under the fuel pump,
- injectors,
- ignition module,
- water temperature sensor.
If the car has difficulty starting when cold, then the problem may be due to the use of low-quality gasoline. In this case, you must refuel only at trusted gas stations. Another reason why the Priora starts worse in cold weather is that the battery loses part of its capacity. The starter turns harder. The oil loses its viscosity and becomes thick. At low temperatures, it is recommended to fill in synthetics.
As a rule, to start the car, 1-2 rotations of the starter armature shaft are necessary. A vehicle in good condition will not have difficulty starting hot or cold. To do this, auto mechanics advise Lada Priora owners to adhere to the following recommendations:
| Advice | Explanation |
| Pour a lot of gasoline into the tank. | Otherwise, condensation will form. Water will not be able to get into the fuel. |
| Before starting your car in cold weather, you need to turn on the high beams for a couple of seconds. | This step will allow, in cold weather, to restore part of the vehicle’s capacity due to the processes occurring in the vehicle. |
| If there is an injector, then you will need to turn on the ignition and wait. The carburetor must be pumped with gasoline manually. | During this time, normal pressure will be created in the fuel system. In any case, do not overdo it, as the spark plugs will flood. |
| You can add a little 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 overfill the fuel. |
Check all components of the ignition system If these recommendations do not help and the engine does not start, then you need to check the ignition system.
Why doesn't the engine start?
- The engine turns over, but does not start.
- The engine does not turn over.
- The engine does not start well.
| Possible cause of malfunction | Checking (diagnosis) of a malfunction | Troubleshooting methods |
| Battery is low | The battery voltage is below 6–8V (see checking the battery). A crackling sound appears under the hood. | Charge the battery, or replace the battery with a new one (see which battery to choose). |
| Poor contact at battery terminals (loose or oxidized) | When the starter is turned on, the voltage in the on-board network drops sharply (the control lamps go out), and the voltage at the battery terminals does not change during startup. A cracking sound appears under the hood. | Tighten the wires at the battery terminals, clean the terminals. |
| Crankshaft and attachments are jammed | Check the ease of rotation of the crankshaft, generator pulleys and cooling system pump. | Repair the internal combustion engine, generator, replace the pump. |
| Damaged starter clutch gear or flywheel ring teeth | Visual inspection. | Replace starter or flywheel. |
| The circuit of the starter solenoid relay is faulty (broken, oxidized, loose tips), contacts “30” and “50” of the ignition switch do not close. | When turning the key to the “starter” position, the retractor relay does not operate (there is no click under the hood). Check whether voltage is supplied to the control contact of the traction relay. | Clean and trim the wire ends. Replace the ignition switch or its contact part. |
| Short circuit or break in the solenoid coil of the starter relay. Relay armature jamming (armature misalignment, contamination, corrosion, etc.) | When the key is turned to the “starter” position, the solenoid relay does not operate (there is no click under the hood), and voltage is supplied to the control contact of the solenoid relay. Remove the starter, relay and check operation. | Replace the solenoid relay. |
| Contacts of the solenoid relay or wires are oxidized | When the starter is turned on, a clicking sound is heard under the hood, but the starter armature does not rotate. Check the resistance of the “battery - starter” circuit. | Tighten the wire ends, replace the relay. |
| Burnt commutator, stuck brushes or worn out brushes | Remove the starter and check the pressing force of the brushes to the commutator, their residual height and wear of the commutator. | Starter repair or replacement. |
| Open or short circuit in the armature winding | The short circuit is checked with an ohmmeter, or by darkening of the insulation. | Replace starter. |
| Open or short circuit in the holding coil of the starter relay | When the starter is turned on, a cracking noise is heard from under the hood. The battery voltage is within normal limits. The relay is checked with an ohmmeter, or by its excessive heating. | Replace the starter solenoid relay. |
| Freewheel slipping | When the starter is turned on, the armature rotates and the flywheel is stationary. | Replace clutch or starter. |
| The ring gear rotates on the flywheel | When the starter is turned on, the flywheel ring gear rotates, the flywheel is stationary. Squealing, howling from the clutch housing. | Replace flywheel. |
Priorik stalled while driving - logbook of Lada Priora Sedan Zelenka (Banditka2) 2008 on DRIVE2
The Priora stalled while driving, I was already expecting the worst, that the timing belt broke and the valves bent. But no, I open the hood, and everything is fine there. there is surprise and bewilderment on my face, what’s wrong with her? The car won’t start, even the starter doesn’t turn, when you try to directly close the starter, it turns, but the car still won’t start.(((They hook me onto a cable and tow me home, on the way I try to push start it and it starts and immediately stalls. First we actually replaced the bad connector on the crankshaft position sensor, and the sensor itself - no changes whatsoever(((
crankshaft position sensor
After spending half the night sorting through various options for the causes of the breakdown, we decided to turn to the Internet)))
There was no limit to anger when they found out that the problem was just one fuse responsible for the main relay circuit and the starter blocking.
It was this little thing that caused the whole problem.
Issue price: 380 ₽
Battery
As we know, when you turn the key, the starter
, which begins
to rotate
the crankshaft. If this unit does not respond to the described action, they immediately climb to the battery. It is well known that if the voltage drops to 10 volts or below, the starter, by and large, will not be able to work. But it is worth realizing that low performance does not necessarily indicate battery dilemmas. Quite often, unsuccessful attempts to start the engine lead to this. To avoid battery drain, you should not repeat them more than 2-3 times. The problem also appears due to improper operation of the generator.
As a result, the battery will need to be fully charged. Only then can you try to start again. In order not to waste time, it is best to replace the battery with a previously serviceable one.
You can ask permission from someone you know to connect to their battery directly. If the problem is solely in the battery, then the engine will start without much difficulty.
The starter turns, but the car does not move, why?
Here you need to inspect the fuses. Perhaps all the problems come from them. They must be checked for integrity visually or tested with an indicator screwdriver.
In addition, often the inability to start the engine is associated with:
- battery discharge;
- breakdown of the switch that regulates the ignition process;
- terminal oxidation;
- failure of the ignition system coil.
The last breakdown requires replacing the winding with a new one.
And finally, the immobilizer may not allow you to turn on the engine. This element is quite reliable and protects the car well from theft, but sometimes its electronic components malfunction and block the ignition.
Main reasons
So, a man finds himself in an unpleasant situation when the starter of his Priora spins, but the engine does not start. There could be a whole bunch of reasons for this. It’s worth talking about them in more detail.
- 1. The fuse has blown
. In this case, you will need to check its integrity. To do this, you can use a special indicator in the form of a screwdriver or a tester. If these tools are not at hand, you will have to wait for help from passing drivers; - 2. The terminals
on the battery have oxidized or it is simply discharged. This seemingly typical car malfunction can serve as another reason. If the battery does not have enough voltage, it will be able to turn the starter, but there will not be enough charge to power the engine. It is worth checking the device to rule out this possibility; - 3. Defective ignition switch;
- 4. Corrosion. It can appear on any electrical part of the Priora. First of all, it is worth checking the starter itself, because it is always open to the flow of moist air, and this is the main cause of oxidation;
- 5. The ignition coil is faulty. This can also be checked by calling. For these purposes you will need a tester. If this part malfunctions, it must be replaced.
- 6. Accumulation of condensate
under the hood of the Priora; - 7. Fuel supply system problems
. This is very common in this kind of trouble. There are a whole bunch of devices that are responsible for the smooth operation of the system. It is not always possible to fix the problem yourself, so it is better to turn to professionals; - 8. Candles are flooded. And this problem can arise for every car enthusiast. In this case, it is imperative to use a spark plug tool to remove the spark plugs and then check their functionality. Sometimes just wiping them is enough, but sometimes they may need to be replaced. It is better to carry them in the trunk for this occasion;
- 9. Engine overheating
.
This is another nuisance that can lead to the car's operation being suspended. There could be many reasons for this. For example, there may simply be a leak of coolant from the expansion tank. There are many tubes coming out of it, so each of them may be faulty. Unstable operation of the thermostat, which is responsible for starting the engine, can also lead to the inability to start it. There is only one piece of advice here
- immediate replacement of the unit. There is so-called internal overheating, which is much worse than external overheating. While all sensors will definitely report the second option, the second option is practically indeterminable. You need to immediately contact the service for help.
Fuel system
Problems here also very often prevent the car from starting when cold. First of all, you need to check whether there is the necessary pressure directly in the fuel rail. The pressure gauge is connected to the fitting installed on it. When, after turning on the ignition, it does not increase, then most likely the following has failed:
- gasoline pump;
- relay controlling it;
- fuses have blown.
You can simply verify that the unit is working – just listen in the cabin. If the pump starts, a characteristic sound will be heard from the rear seats.
After this, you will have to find out whether the suction pipe in the fuel tank is clogged and whether fuel passes through all the hoses.
Often, poor starting is due to the quality of the gasoline being poured being too low. It may, in particular, contain water or other foreign impurities.
It is important to pay special attention to the following point - if the injectors are working, clicks will be heard. If they are absent, you need to check the voltage in the on-board network and the presence of ground. It should also not be ruled out that the problem lies in the ECU or power relay.
It is worth checking whether the candles are wet. This happens quite often after the power plant has overheated. In this case, they are removed from the nests and examined. Quite often, simply wiping them dry is sufficient.
In the end, I would like to say one thing - in order for the car to continue to work without failures in the future, you only need to regularly care for it, carry out preventive maintenance and promptly prepare it for the winter period.
