Squeaking Noise when Cold Start. Suspect something wrong with belts, Also engine missing when sudden acceleration desired from Total Stop

Why does my car squeak on a cold start?

When you have a squealing noise on start up, that goes away after a few minutes, is normally a belt issue. This is typically a sign that the belt is slipping enough that it makes the noise until everything gets to moving and the belt will quit slipping.

Why does my car squeal when I first start it?

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 belt squeal only on startup?

Engine belts like the serpentine belt or the timing belt help time and operate different parts of the engine and hearing belt noise like a screech or squeal on startup, especially when it’s cold outside, probably means an engine belt needs replacing.

How do I know if my belt or pulley is squeaking?

Itself if you look at the edge of the pulley. And make sure the pulley is running true so it's running straight if the pulley is wobbling that could cause the belt to squeak.

Why does my serpentine belt squeal when I accelerate?

A squealing noise, often heard at engine startup, sudden acceleration, air conditioning turn-on, or during a U-turn is typically caused by belt slippage due to improper tension and/or a badly glazed belt. Serpentine belt systems typically employ a spring loaded belt tensioning pulley and sometimes these can go soft.

Can belt tensioner cause squeaking?

The most common symptom of a bad or failing drive belt tensioner is noise from the belts or tensioner. If the tensioner is loose the belts may squeak or squeal, especially when the engine is first started.

Why is my car making a high-pitched squealing noise?

High-Pitched Squeal

You may hear this sound while accelerating or right after starting when the engine is cold. A loose or worn fan belt, also known as the serpentine belt, is usually the cause. Replacing this belt or belt pulley should eliminate the sound. Consider having the timing belt checked as well.