Once the generator is damaged, the battery light will turn on, but it will not turn off immediately because there is still some electricity in the battery. However, it stalls after riding for a while. Generally speaking, for Buick brand vehicles, a new car can be driven for approximately 90 minutes without turning on the lights or air conditioning.
The reasons why the car generator is not producing electricity are:
First, the generator belt slips or the belt breaks.
Second, when the generator is not energized or energized, you can place a tool on the front end of the pulley to detect if there is a magnetic field. If there is a magnetic field, it always has been. normal. Otherwise, he's not excited. Previous reels may have appeared. Short circuit or open circuit, worn carbon brushes or there may be a problem withthe excitation supply. Plus, it's a powerful word, and the belt is normal. If it's not producing electricity, it's usually due to the voltage regulator or rectifier inside the generator.