
Generator not generating electricity may be due to circuit failure, rotor damage, or stator damage. If the car's generator is damaged, it should be replaced immediately with a new one; otherwise, it will affect the normal operation of the vehicle. When replacing the generator, it is recommended to choose products from well-known brands. Here is some relevant knowledge about generators: The generator is an important power supply system in a car. After starting the engine, the generator operates to supply power to the electronic devices in the car and also charges the battery. If the generator is damaged, the car will use the power from the battery while driving. If the battery runs out of power, the car will break down.

Driving a Wuling Hongguang for deliveries, the worst fear is the alternator failing midway. I've encountered this twice. Once, the alternator belt snapped directly—rubber aging and being too tight can cause this, leaving the pulley spinning without driving the alternator. Another time, the voltage regulator inside the alternator failed; it controls the output voltage, and when broken, it either stops charging or charges erratically, with the battery light on the dashboard surely lighting up. During repairs, I noticed the rotor's carbon brushes were worn out—short brushes lead to poor contact or jamming, preventing the alternator from generating electricity. Remember to check if the wire connector behind the alternator is loose or burnt; poor contact can also cause unstable power supply to the entire vehicle.

Having repaired Wuling vehicles for several years, I've become very familiar with generator charging issues. The most common problem points are those carbon brushes - they wear down from prolonged friction and may get stuck in the holder, losing contact entirely. Worn-out brush springs that lose tension also cause failures. A loose belt slipping obviously won't generate power - press the belt with your finger; if it deflects over 1cm, it needs tightening. The worst case is burnt stator windings - I once handled a flood-damaged vehicle where water corrosion caused winding shorts, requiring complete generator replacement. Always check if the rear cooling vents are clogged with grime, as poor cooling easily fries the rectifier.

From the sound of your generator issue, it's most likely the voltage regulator that's faulty. It's hidden inside the generator's rear cover and primarily controls the charging voltage. When it fails, the generator either stops producing electricity or overcharges excessively. The rectifier bridge is also crucial—if any of its six diodes are burnt out, the current can't be converted to DC to charge the battery. If the slip rings are contaminated with oil or severely corroded, poor conductivity in the rotor will also prevent power generation. Do you hear any bearing humming noise from the generator? Worn-out bearings can cause the rotor to seize. The most reliable method is to connect a voltmeter—if the battery voltage at idle is below 13 volts, it's almost certainly a generator problem.


