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Squealing Noise from Engine Bay on 2019 Forte - Serpentine Belt?

0

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

Vehicle: 2019 Kia Forte GT-Line

Hi all,

My 2019 Kia Forte GT-Line, with about 45,000 miles, has developed a really annoying squealing noise coming from the engine bay. It's most noticeable when I first start the car in the morning, especially if it's a bit damp outside, and sometimes when I turn the steering wheel sharply. It usually goes away after the engine warms up, or if I rev the engine a bit.

I'm thinking it might be the serpentine belt, but I'm not 100% sure. I've heard these belts can start to make noise when they get old or glazed. Is 45,000 miles a typical lifespan for a serpentine belt on a Forte? What should I look for if I pop the hood?

Any tips on diagnosing this or if it's a DIY job would be greatly appreciated!

✓ Accepted solution

ClearTheCode Admin

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

0

ClearTheCode admin answer:

Your description of a squealing noise, especially on cold starts or in damp conditions, is a classic symptom of a worn or loose serpentine belt. At 45,000 miles, it's certainly possible for the belt to start showing signs of wear, though some can last longer.

Here's a breakdown:

  1. Common Causes of Squealing:

    • Worn or Glazed Belt: The rubber can harden and lose its grip, especially when cold.
    • Loose Belt: The tensioner might be failing, or the belt wasn't properly tensioned after a previous service.
    • Misaligned Pulley: Less common, but a pulley could be slightly off-kilter.
    • Failing Accessory Bearing: A bearing in an alternator, AC compressor, or power steering pump could be seizing, causing the belt to slip over it.

  2. DIY Inspection Steps:

    • Visual Check: With the engine off and cool, inspect the belt for cracks, fraying, glazing (a shiny appearance), or missing ribs. A healthy belt should look dull and have no visible damage.
    • Tension Check: While difficult without a tension gauge, you can gently try to twist the belt. It shouldn't twist more than 90 degrees in the longest span. More importantly, check the automatic tensioner for proper operation (it should apply consistent pressure).
    • Water Test (Caution!): Briefly spray a small amount of water on the ribbed side of the belt while the engine is running and squealing. If the noise temporarily stops, it's almost certainly the belt. If it changes pitch or gets worse, it might be a bearing.

  3. DIY Replacement Considerations:

    • Replacing a serpentine belt on a Kia Forte is generally a manageable DIY task for someone with basic mechanical skills and tools. You'll need a serpentine belt tool or a long breaker bar/ratchet to release the tensioner.
    • Always draw a diagram or take a photo of the belt routing before removal.
    • Ensure you get the correct belt for your specific engine and trim.

  4. When to See a Shop:

    • If the noise persists after replacing the belt.
    • If you suspect a failing accessory bearing (e.g., alternator, AC compressor).
    • If you're uncomfortable working around moving engine parts or don't have the necessary tools.
    • If the tensioner itself appears to be faulty or seized.
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