What is the reason why the car starter does not start

What reasons why the starter does not start are as follows:1. The battery is insufficient.

2. The battery wire is loose, corroded or worn.

3. The starting relay is faulty, if it is an automatic transmission, the gear switch may also fail.

4. Fuse breaking.

5. Starter failure, including motor and magnetic switch failure, and other parts failure.

There are many reasons why the car starter does not start. The first thing we need to confirm is whether the gas car has electricity? If there is electricity and the starter does not respond. The first thing we need to do is find out if there is electricity at terminals 50 and 30.

The reason why the car starter does not start is that the battery is low, the ignition switch is in poor contact, the starting circuit is faulty, etc. , and most of them are caused by low battery power. First of all, we can tell if it is a fault condition of the battery by observing the instrument, checking the brightness of the headlights, the sound of the horn, and the inspection hole of the degree of battery discharge.

In addition, a short circuit in the solenoid coil on the starter solenoid switch or a loose flush in the contact plate connection, a short circuit in the starter relay coil or contact ablation may also affect the starting failure. or internal causes of the starter, deformation of the armature shaft, wear of the brushes, poor contact of the book spring, dirty or ablation of the commutator, short circuit of the armature and magnetic field coil. In general, a starter is a mechanism that starts the engine.

It has gone from being a manual tractor to a mechanical starter, starting the vehicle in just a few seconds each time. Under normal circumstances, the starter is not easily damaged. If the starter is faulty and the key is turned to start, but the state judge guesses that only the sound of "ticking and ticking" is heard, it can be judged as an early symptom of the starter failure.

Dear Kiss is happy to serve you The reasons why the car starter does not start: 1. The circuit line is faulty, check whether the circuit is broken, resulting in the failure to start; 2. The battery loses power, and it cannot be ignited when the battery loses power; 3. When the ignition system fails, and the ignition switch is out of order to change the existing fault or poor contact, it cannot be ignited; 4. Check the gasoline, if the gasoline is insufficient, it is impossible to rent the fire; 5. Other reasons, including faulty control circuits, etc. In addition to the above four points, there are other reasons why the starter does not start, such as the armature mobile starter series auxiliary coil is broken or short-circuited; Starter bearings are too tight or loose; Poor contact between the brush and the rectifier; Short circuit or open circuit of solenoid switch coil; There is a fault in the control line, etc.

The reasons why the car starter does not start are as follows:

1. The starter itself is damaged, and the service life is about 100,000 kilometers. If used for too long, the carbon brush is easily damaged, which will cause the starter to not start.

2. If the battery voltage is not enough to start the starter, the engine cannot be started.

3. The gasoline pump is damaged, resulting in no oil**.

4. When the gear is in D gear, the ignition cannot be started. This is the car's self-protection mechanism to prevent the car from going straight after ignition.

5. The damage of the engine speed sensor of the car leads to no high-pressure fire in the car, which makes the car unable to start normally.

Repair methods for car engines that cannot be started

1. Identify the cause of the failure.

For diagnostics of such faults in which the engine does not start, the battery should be tested first. It is necessary to find out if the engine does not start because the battery is insufficient.

2. Detect ignition timing.

Timing belt slippage is the root cause of the failure that there is no electric spark and the engine cannot start. In the case of faults such as engine failure to start, the first thing to do is to inspect the engine starting system.

3. Detect the circuit of the starting system.

From the point of view of the most basic composition, the rolling circuit of the starting system generally includes the following basic parts, that is, the battery, the starting motor and the cable connecting these parts. Of course, in addition to this, ignition switches, starter relays or solenoid coils, as well as in-vehicle anti-theft systems, are also important components of the starting system.

4. Detect the quality of electric sparks.

Once the circuitry of the starting system has been tested and proven to be fine-tuned, attention should be focused on why the engine is not working. Generally speaking, the first test is the ignition system of the engine, which is also the simplest test to be done.

5. Detect the fuel system.

The diagnosis of the fuel system can be divided into two parts: the diagnosis of the fuel supply system and the diagnosis of the injector circuit system. The fuel supply system can be detected by measuring the flow and pressure of the fuel.

The best way to measure fuel flow is to inspect the line when there is a load in the fuel supply line.

The starter of the car does not start will be very sleepy for many reasons, we need to check and repair, it may be because of the failure of the car power supply, or it may be a problem with the starter itself.

Power failure:

It may be that the car's battery is out of power, and if the car is out of power outside, then we can ask for help from a passing car on the road.

In addition to the battery being dead, the battery will also be short-circuited or the coder will not be able to start, and we need to inspect and repair it, or even replace the battery.

If the pole wire of the car is loose or in poor contact, it will also cause the car to be unable to start the starter, which may be that the tie wire of the engine is loose or falls off, and we need to check and repair. If the main power switch of the car is damaged, there is no way to start the car starter.

Starter failure:

If the car starter itself fails, it will definitely have the effect of not being able to start, probably because of the poor contact between the commutator and the brushes.

Or the insulating brush tie iron, magnetic field winding and other related parts are damaged, and then there is the suction coil on the electromagnetic switch, keeping the coil open or the switch contact plate is poor.

Precautions for the use of the starter:

1. The starting time of each time is not more than 5s, and the interval between starting again is not less than 15s.

2. If the driving gear does not enter the gear ring meshing and the noise of tooth beating occurs during starting, it should be stopped and started quickly and then started after the motor stops.

3. Release the button immediately after the fire of the delayed dispersal machine to return the drive gear to its original position.

4. It is strictly forbidden to run the starter without disengaging the clutch after the gear, and use the starter to drive the vehicle to move.

It may be that the battery is not strong or the binding post of the starter is dirty, resulting in poor contact, resulting in the phenomenon that the starter does not rotate.

If the battery is damaged, it needs to be replaced with a new one.

When the starter is working, the battery needs to output a large current, and if the performance of the battery is not good, the starter will not work.

The starter is used to start the engine, and if there is no starter, the engine cannot be started.

When the starter is working, the gear on the starter will mesh with the gear ring of the engine flywheel, which can drive the flywheel of the engine to rotate when the starter turns sleepy and laughing.

When the engine is turning, the ignition system, fuel supply system, air intake system, exhaust system will all work, so that the engine can be started.

If the battery is dead, the engine will not start.

The ignition system of the engine and the fuel supply system require electricity for work.

In fact, the probability of failure of the starter is relatively low, because the working time of this component is only a few seconds each time, and the starter is only a few hours of work throughout the year, so the starter is a component with a relatively long life.

The life of the battery is relatively short, under normal circumstances, the battery can be used for 3 to 4 years, so the battery needs to be replaced regularly.

If there are a lot of electrical appliances in the car, the life of the battery will be shorter.