When I Start My Car It Screeches?

What Makes Your Vehicle Squeal when Starting. Most of the time, the squealing is do to something called a serpentine belt. When you open your hood, it's the incredibly long belt that winds around multiple pulleys. It connects the crankshaft to other systems like the alternator, power steering, AC, and water pump.

Why does my car squeal when I start it up?

Over time, wear and tear can take a toll on the belt and the pulleys, which often results in that high-pitched chirping sounds when you start the car and accelerate. ... A worn belt can, therefore, begin to slip, which is one of the causes the squeal. Alternatively, cracks can cause the belt to snap.

What does it mean when your car screeches?

The sound of a loud squeak or squeal coming from under the hood of your car is often due to slippage of a worn or damaged accessory belt, according to Angie's List. If this is the case, the squeaking may be caused by an aging belt, such as the serpentine belt, becoming loose and losing traction.