Why does my car squeal when I first start it up?

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.
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Why does my car squeal on cold starts?

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.
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Why does my car squeal first thing in the morning?

Most likely cause for this is that you have some condensation built up overnight on either the belt or one of the pulley wheels, and until this has evaporated the belt will be able to slip a little, causing a squeak. Once the engine warms up, the condensation is gone.
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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.
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Why is my car squealing when I turn it on?

It is also referred to as the drive belt. Sometimes, it may lose tension and wear down due to friction and heat. This may cause the belt to squeal or chirp and as a result, you may hear a loud engine screeching noise any time you start the car.
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Why your car SCREAMS after you start it and how to fix that.

How much does it cost to fix a squeaky belt?

A typical serpentine belt start at around $25 and goes up to $75 at most. If you know some car repair basics, you could change the belt yourself, and it may save you paying labor charges somewhere between $75 and $120. All together, you're looking at around $100 to $195 to replace your serpentine belt. What is this?
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Why is my brand new belt squealing?

Belt or Pulley Misalignment

What is this? Belt or pulley misalignment is a common issue that causes changed serpentine belts to still squealing. Misalignment means that the grooves on your belt are not aligned with the ones on your pulley. It also tells that you shift the belt a bit in or out in one of the pulleys.
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Why is my car whistling when I start it?

Constant circulation of air and cooling fluid through your car's engine can cause small cracks in hoses, breaking their vacuum seal. The whistling sound you are hearing could be air escaping through these holes.
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Do new belts squeal?

If the replacement belt isn't installed properly, even a brand new belt and new belt pulley won't stop the squealing noise. Fortunately, it's quite easy to detect this issue. If you've just got a new serpentine belt installed and yet you hear the squealing noise, chances are your mechanic didn't do a good enough job.
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How do I know if I need to replace my serpentine belt?

The easiest way to know that a new serpentine belt is needed is if you hear it squealing while the engine is running. A heavy rainstorm might cause a bit of squealing, but if there are any fluid leaks, it's time to replace it right away.
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How do I know if my serpentine belt is loose?

The symptoms of a loose serpentine belt include a loud squealing noise when the engine is started or when the steering is turned all the way to one side. A serpentine belt that keeps slipping off the pulley is another symptom of a bad tensioner.
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What does a broken timing belt sound like?

Generally, a timing belt that goes bad makes a noticeable ticking or clicking timing belt sound that is unusual. When the timing belt starts falling the ticking or clicking sound becomes pretty audible.
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Can low oil cause squealing?

Driving with low oil won't cause a squeaking sound. But it will cause other sounds. Insufficient levels of oil will lead to clicking or ticking sounds when driving. However, keep in mind that even with decent oil levels, the ticking sounds can still occur.
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How long will a squealing serpentine belt last?

It is a critical component of your vehicle's engine system, and if it's cracked or broken, it's time to visit to your local auto repair shop. The good news is a serpentine belt can last up to 50,000 miles or five years, with proper maintenance, before it needs replacing.
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