What is the main fault of the starter?

Common faults of the starting system The starter does not work, the starter power is insufficient, and the starter does not.

It can stop, starter idling and start noisy, etc.

The starter is not workingTurn on the power start switch, the starter does not work, and can be turned on electromagnetically between the battery and the starter.

Turn off the "suction coil and hold coil" terminal block to connect a thicker wire and start the machine rotation.

It may be that the starting relay, the starting switch is not working, or the connecting wire is open; Ruoqi.

The motor still does not turn, indicating an internal fault in the starter. The possible cause is the electromagnetic switch of the starter.

Electromagnetic coil failure, poor ablation contact of motor switch, motor brush, commutator, electricity.

There is a disconnect fault in the pivot and magnetic field.

The starter is underpoweredAlthough the starter can drive the engine crankshaft to rotate, the running speed is too low, and the engine is not.

It can start smoothly, indicating that the starter is not powered enough. The possible reasons are battery power loss, battery.

Loose terminals, poor contact due to oxidation and corrosion, ablation of motor switches, ablation of commutators, excessive wear of brushes or insufficient spring elasticity, short circuits and lap faults in the armature and magnetic field of the motor.

The starter cannot be stoppedRelax the power supply and move the switch together, the starter can not stop working, there may be a power supply one.

Faulty starter switch, faulty starter relay or motor switch bonding.

The starter is idlingAlthough the starter rotates, the engine crankshaft does not. Possible causes include one-way clutch slippage, fork mechanism misalignment or hairpin, insufficient drive gear push-out, excessive gear toothing or wear, loss of fork shaft, etc.

Start-up noiseIf there is a rhythmic impact sound at start-up, it may be due to the hold in the solenoid switch.

Coil break, bad starting relay, battery loss or poor pole contact, etc.; If it appears.

Constant friction or whistling can be caused by bearing wear, bending of the armature shaft, or loss of roundness of the rotor.

Motor sweeping, or commutator ablation and poor contact with brushes, etc.

Lack of cylinder, shaking, unable to start.

Hello, there is a broken pick-in switch inside.

1. Suction coil (main pull coil) open circuit

The multimeter is hit to the "secondary pipe file", one meter pen is connected to the starting S pillar, and the other meter pen is connected to the motor column. If it is measured, the suction coil is not open, if it is not passed, the suction coil is open, and the starter assembly is generally replaced.

2. Keep the coil (retention coil) open

The multimeter is hit to the secondary pipe file", a meter pen is connected with the starting S pillar, and the other meter pen is connected to the magnetic switch housing, if the measurement is not passed, in order to keep the coil open, the starter assembly is generally replaced.

3. Contact piece or contact ablation:

Slight ablation: When the two joints are in contact, the self-inductive voltage (spark) is generated, which will cause metal oxides to be produced on the contact surface, so that the passing current can not meet the normal use of electrical appliances, and the electrical appliances work poorly, and the oxide surface can be polished.

Severe ablation: On the basis of slight burning, the degree of oxidation is more serious, and the passing current can not even drive the electrical appliances to work, or even almost no current passing, which is equivalent to an open circuit, which can be polished or replaced directly.

Note: A screwdriver can be used to directly short connect the battery column and the motor column. If the starter is working properly, it is ablation. If it still rotates weakly, it means that the battery is losing power or the DC motor is faulty.

4. Contact piece and contact burning:

Under the action of the high chain group current shed, the two contact surfaces produce high temperature, so that they are melted into one, and are no longer controlled by a certain component or a switch, and the assembly is generally replaced.

5. DC motor turns the wax coil to catch the iron

Phenomenon: The starter does not rotate.

Detection method: the multimeter to the "secondary pipe file", a meter pen and the commutator are connected, the other meter pen is connected with the rotor shaft, normal time should not pass, if the pass is the rotor coil iron, the starter assembly should be replaced.

6. The one-way clutch is stuck or slipped.

Phenomenon: a. Stuck: After the starter idles or the starter drives the engine to land, the starter cannot exit the work, and the engine drives it to rotate.

b. Slippage: After the starter gear is meshed with the flywheel, the starter idles and the flywheel does not move.

Inspection: first fix a certain element or a gear behind the one-way device), and then rotate the frontmost gear (the driving gear of the meshing flywheel), normally it should only be idling in one direction, if it can be idling in both directions, it is a one-way slip, if both directions can not rotate, it is a one-way device stuck, stuck can be cleaned or replaced, and the slip can only be replaced.

The most common crack and failure of the starter motor carbon brush contact is poor, resulting in starting failure, sometimes it can be started and sometimes it can't be started, and there is also an imitation of the oxidation of the contact point of the starting line or the ablation of the big difference, resulting in poor contact and can not start normally.

Common faults of starters are not able to rotate or rotate slowly.

Check method:1The battery has no electricity or weak power, so there is a fault that the starter does not turn or rotates slowly.

2.The starter wire is loose or falls off, and the switch or adsorption switch fails.

3.The brushes are worn or the brush surface is not correct, and the spring is weak, so that the rectifier is not in good contact.

4.Short and open circuits of the excitation coil or armature coil.

5.The rectifier is fouled and the mica sheet is protruding, resulting in poor contact between the brushes and the rectifier.

The common faults of the automobile starting system mainly include: the starter does not work, the starter is weak, the starter is idling, the starter is starting to make teeth, and the starter cannot be released from starting.

Car Boot System Troubleshooting:

1. Check the battery: when the horn does not sound, the instrument light is dim, the power window is slow to lift, the headlights of the car are dim, and the anti-start indicator light is flashing (some models), check whether the battery binding post is oxidized or poorly connected, the battery is poorly grounded, and the starting voltage of the starter is measured to be greater than.

2. Check the starter: short the main terminal rod of the cable on the starter and the starting binding post, if the starter can not work, it is said that the electromagnetic switch of the starter is faulty, and the starter needs to be removed for maintenance.

3. Check the ignition switch and the ignition switch related circuits.

4. Check the car starting relay and starting insurance to judge the obstacle position.

Hello, the current number of people consulted may not reply in a timely manner, if it is a vehicle failure problem, it is recommended to use the computer to detect the specific cause of the failure, search for "car master" can be consulted at any time to ask the car to ask the question, 24 hours ** answer.

The following is a specific introduction to the fault phenomenon of the starter: 1. Transmission mechanism failure: after opening the starting switch, the starter high-speed rotary motor crankshaft does not respond.

This phenomenon indicates that the transmission mechanism of the starter has failed, which may be caused by wear and tear of the transmission gear or one-way clutch. 2. Power cord problem: the starter cannot work normally, the drive gear does not rotate, and the reasons for this kind of clearance are such as power cord problems, ablation of the contact disc of the starter switch, and excessive engine resistance.

3. Short circuit of the coil: the insufficient power output of the starter cannot drive the crankshaft excitation coil, the short circuit of the coil and the loss of the battery will cause the insufficient power supply of the starter. 4. Installation does not answer the friend bureau:

The harsh working sound of the starter may be caused by a stuck one-way clutch or improper installation of the starter. 5. Coil disconnection or battery loss is pure: the starting switch has a slight abnormal sound but does not work, keep the coil disconnected or serious battery loss will lead to this phenomenon.

Reasons for reference only: 1. The sensor is damaged, the contact is poor, or the signal is interrupted; 2. Poor engine maintenance; 3. The quality of fuel and oil is not good; 4. The combustion of the mixture is insufficient; 5. Spark plug failure, ignition coil failure; 6. The fuel pump is faulty and the oil circuit is blocked; 7. The air conditioner Danlu filter element is blocked.

The specific situation of the seepage shed is analyzed as follows; 1. Sensor problems; The sensors mentioned here include water temperature, crankshaft position, air flow, intake air temperature, oxygen sensor, etc., when this, poor contact or signal interruption, the ECU of the car can not accurately obtain the engine data, at this time it will cause the engine fault light to turn on. 2. Maintenance problems; Poor engine maintenance is the most common cause of engine failure to light up. We know that the vehicle has a certain maintenance cycle, if the owner does not maintain on time, coupled with bad driving habits, then it will increase the burden of engine operation, and finally can only remind you through the fault light to care about your car 3, oil quality problems; The oil quality here includes fuel mold shouting and engine oil, we know that the fuel filled by the car is generally marked, and the engine oil is also semi-synthetic and fully synthetic, the manufacturer will generally recommend the owner to use which grade of fuel, which type of engine oil, if the owner does not add as required, it will cause wear and tear of the engine in the long run, and the fault light is not to blame.

Poor combustion of the mixture; The failure of the spark plug, ignition coil, fuel pump, and oil circuit blockage of the engine will cause poor combustion of the engine mixture. Poor combustion of the mixture is caused by the problem of engine carbon deposition or knocking, and these will eventually be detected by the engine's oxygen sensor and reported to the ECU, which will naturally turn on the fault light to warn of the intake air intake problem; When the engine burns, it needs to take intake, the air filter element is very important in this process, if the air filter element of the car is not clean, it will affect the air intake of the car if it is not cleaned regularly, and it will be blocked for a long time, and if it is serious, it will cause the engine failure light to turn on. pressurization issues; Intake booster lines and turbochargers can also cause engine failure lights to illuminate.

The most common of these is turbocharger damage, and at the same time, the vehicle will also have oil leakage, large oil consumption, and power loss.

There are several cases in which a car starter failure manifests:

1. The starter is not working properly and the drive gear does not rotate. It may be that the starting solenoid switch coil is short-circuited or the contact disc is in poor contact.

2. The power output of the starter is insufficient, and the crankshaft cannot be driven so that the car cannot start normally. It is possible that the starting relay contacts are ablated, the relay magnetic coil is short-circuited, or burned.

3. The sound of the starter during operation is very harsh. This could be that the starter is not installed correctly, or the one-way clutch is clogged.

4. When the starting switch is turned on, the starter rotates at high speed and the engine crankshaft does not respond. This can be caused by severe wear and tear on the transmission gears or one-way clutches.

Precautions for daily use of automobile starters:

1. The starter should not be used for more than 5 seconds each time, and the interval between two starts is 2-3 minutes. If it cannot be started for three consecutive times, the machine should be stopped to check the circuit and oil circuit, and then start after troubleshooting.

2. It is strictly forbidden to use the starter to drive the engine to drive the vehicle by rotating the transmission mechanism.

3. After the vehicle travels 8000 kilometers, check whether the surface of the commutator is smooth and clean, whether the carbon brush is stuck in the frame, whether the spring pressure of the carbon brush is normal, and if there is a fault, it should be removed and repaired. Hope.