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Squealing Noise from Engine - 2022 Kia K5 GT-Line Serpentine Belt?

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Mike T. · rep 0 · May 22, 3:11 AM · 1 replies · solved · Question

Vehicle: 2022 Kia K5 GT-Line

Hey everyone,

I've got a 2022 Kia K5 GT-Line with the 1.6L turbo engine, and it's got about 35,000 miles on it. For the past week or so, I've been hearing a distinct squealing noise coming from the engine bay, especially when I first start the car in the morning or when it's damp outside. It usually goes away after a few minutes of driving, but it's starting to get more frequent and sometimes comes back when I accelerate.

My first thought is the serpentine belt. Does this sound like a common issue for the K5 at this mileage? Is checking and potentially replacing the serpentine belt a DIY job, or is it something that requires special tools or expertise for this model?

Any insights or experiences with similar noises would be super helpful!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 3:11 AM

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ClearTheCode admin answer:

That squealing noise, especially on startup or in damp conditions, is a classic symptom of a worn or loose serpentine belt (also known as the drive belt) on your 2022 Kia K5 GT-Line. At 35,000 miles, it's a bit early for a belt to be completely worn out, but it's definitely within the range where it could start showing signs of age or tension issues.

Common Causes of Serpentine Belt Squeal:

  1. Worn Belt: The rubber can harden, crack, or become glazed over time, losing its grip on the pulleys.
  2. Loose Belt Tension: The automatic tensioner might be failing, or the belt might have stretched slightly, leading to insufficient tension.
  3. Contamination: Oil, coolant, or other fluids on the belt or pulleys can cause slippage and noise.
  4. Failing Pulley Bearings: A failing idler pulley or accessory pulley (alternator, AC compressor, power steering pump) can cause noise, though it's usually more of a grinding or whining sound.

DIY Inspection & Replacement:

  • Inspection: With the engine off and cool, visually inspect the belt for cracks, fraying, missing ribs, or a glazed (shiny) appearance. Also, check for excessive play in the belt by trying to twist it. A good belt should feel firm.
  • Replacement Difficulty: Replacing the serpentine belt on your K5 1.6L turbo is generally considered a moderate DIY job. You'll need to relieve tension from the automatic tensioner using a wrench or breaker bar. It's crucial to note the belt's routing before removal, as it can be complex. Taking a picture is highly recommended.

When to See a Shop:

  • If the noise persists after replacing the belt, indicating a potential issue with a pulley or accessory.
  • If you're uncomfortable working in tight engine bay spaces or manipulating the tensioner.
  • If you can't identify the source of the squeal after a visual inspection.
  • If the belt breaks, as this will immediately disable power steering (if hydraulic), the alternator, and potentially the water pump, leading to a breakdown.
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