What is a serpentine belt?

• Modern automobiles use both gasoline and electricity to power their parts. Serpentine belts are part of the car's electrical system.
  
  

Where is the serpentine belt used in cars?

• The serpentine belt connects the alternator, several pumps, and the air conditioner compressor. The alternator charges the battery, which provides the electrical charge for powering the windshield wipers, radio, lights and ignition.
  
  

Why was the serpentine belt developed?

• Pulley systems have been used in automobiles for many years, but regular belts tended to stretch when pulled too tightly. In 1979, Jim Vance developed a system that connected everything with one serpentine belt, rather than several belts.
  
  

What does a serpentine belt do?

• A single serpentine belt allows the tension of the belt to be tighter. Because the belt is tighter, it is less likely to slip, which saves wear on the car.
  
  

What is the advantage to using a serpentine belt?

• Drivers know pretty quickly when a serpentine belt breaks, which means that it can be replaced before the whole engine is damaged. In addition, because there is only one belt, changing the belt is much easier. More importantly, the belts don't wear out as quickly.