Nissan Qashqai won't start
Content
During the operation of the Nissan Qashqai, there is always a risk of encountering a situation where the car refuses to start. This problem can be caused by reasons of a very different nature.
Some faults can be easily repaired by yourself, but some faults require special equipment.
Battery problems
If the Nissan Qashqai does not start, it is recommended that you first check the battery charge. When discharging, the onboard voltage drops when the starter is connected. This causes a characteristic click of the traction relay.
In most cases, the battery has trouble starting when the outside temperature drops. This is due to the fact that engine oil thickens in cold weather. Because of this, it is much more difficult for the starting node to turn the crankshaft of the power plant. Therefore, the motor requires a higher starting current. At the same time, the ability to return energy to the battery is reduced due to the cold. The overlap of these factors leads to launch complexity. In adverse conditions, it becomes impossible to start the Nissan Qashqai.
To resolve the low battery issue, use one of the following options:
- boot using ROM;
- using a charger, charge a conventional battery with a rated current or higher;
- "turn on" from another car.
If it was not possible to start the car due to the fact that the battery died once, then it is necessary to charge the battery and, regardless of the situation that has arisen, continue to operate the Nissan Qashqai. If problems with the battery occur periodically and often enough, it is necessary to diagnose the power supply. Based on its results, a decision is required to restore or replace the battery.
If the battery check showed its serviceability, but it is discharged often and quickly, then the car's on-board network requires diagnostics. During the test, a short circuit or a large leakage current may be detected. Eliminate the causes of its occurrence should be as soon as possible. If troubleshooting is delayed, there is a risk of vehicle fire.
The reason for the inability to start the power unit may be mechanical damage to the battery case. Electrolyte leakage leads to a decrease in the battery charge level. Diagnosis is made by visual inspection of the battery. If defects are found, a decision is made to repair or replace the power supply.
Security system and its impact on starting a car
Car alarm in normal mode protects Nissan Qashqai from theft. Due to installation errors or failure of its elements, the security system may make it impossible to start the engine.
All alarm failures are conditionally divided into software and physical ones. The former manifest themselves in errors that occur in the main module. Problems at the physical level in most cases are the failure of the relay. Contacts of automation elements stick or burn.
It is recommended to start diagnosing and troubleshooting problems with the alarm by checking the relay. After that, you can inspect the rest of the elements of the security system. A radical way to check the alarm is to completely remove it from the car. If, after disassembly, the Nissan Qashqai began to load, each removed module is subject to detailed diagnostics.
Problems in the ignition system
If problems occur in the ignition system when the engine is cranked, the starter turns as usual, but the power unit does not start. In this case, jamming and subsequent operation at unstable idle is possible.
The weak point of the Nissan Qashqai ignition system is its candles. They work in conditions of constant exposure to an aggressive environment. Because of this, the destruction of the electrodes is possible. Damage can lead to a situation where the car will not start.
In the absence of external damage to the candles, it is necessary to check the spark between the electrodes. It should be borne in mind that you can turn the crankshaft with a starter for no more than five seconds. Otherwise, unburned fuel will enter the exhaust gas converter.
Malfunctions of the power supply system of the engine
Among novice car owners, a popular reason for the inability to start the engine is the lack of fuel in the gas tank. In this case, the fuel level indicator on the dashboard may show false information. To solve the problem, you need to pour fuel into the gas tank. Other problems that occur in the power supply system of the power unit can be found in the table below.
Table - Manifestation of fuel system malfunctions
| Cause of failure | Manifestation |
|---|---|
| Filled with the wrong type of fuel | The inability to start the car appears almost immediately after refueling |
| Clogged nozzles | The complication of starting a Nissan Qashqai engine occurs gradually over a long period |
| Violation of the integrity of the fuel line | The car cannot be started immediately after receiving damage |
| Fuel filter clogged with bad fuel | Problems with starting the power unit occur after a short period of time after refueling |
| Malfunction of the electric pump of the fuel bottle | Nissan Qashqai stalls after driving and refuses to start |
Malfunctions in the starting system
The Nissan Qashqai car has a characteristic feature in the starting system, which leads to the inability to start the car. The connection of the earth cable to the motor was carried out with the calculated error. Already with a run of about 50 thousand km, the strongest oxides are formed at the point of contact. Some car owners complain that the mounting bolt usually falls out. Due to poor electrical contact, the starter assembly cannot rotate the crankshaft normally. To solve the problem, car owners recommend laying a new cable with a different bracket.
If the starter turns the crankshaft poorly, this may be due to the following problems:
- burning or oxidation of the traction relay contact pads;
- worn or clogged brushes;
- pollution or depletion of the reservoir resource.
To eliminate the above problems, it is necessary to disassemble the Nissan Qashqai assembly. After that, you need to disassemble it and perform troubleshooting of the elements. Based on its results, a decision is made to replace spare parts, repair or purchase a new mounting kit.
Another problem that can lead to the impossibility of starting the engine is the turn-to-turn short circuit. Its diagnosis is carried out with a multimeter. If a malfunction is detected, the anchor must be replaced, as it has poor maintainability. In some cases, it is more rational to purchase a starter mounting kit.
