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Squealing Noise from Engine Bay on 2020 Forte GT - Serpentine Belt?

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Steve N. · rep 0 · May 22, 3:11 AM · 1 replies · solved · Question

Vehicle: 2020 Kia Forte GT

Hey everyone, I've got a 2020 Kia Forte GT, and for the past week or so, I've been hearing a pretty distinct 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 at low speeds.

It sounds a lot like a worn belt to me. I'm thinking it might be the serpentine belt. The car has about 45,000 miles on it. Is this a common issue for this model year?

Is replacing the serpentine belt a DIY job I can tackle, or is it complicated on the Forte GT? What tools would I need, and are there any specific things I should watch out for?

✓ Accepted solution

ClearTheCode Admin

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

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ClearTheCode admin answer:

That squealing noise you're describing is a classic symptom of a worn or loose serpentine belt, especially when it's more prominent during cold starts or in damp conditions. At 45,000 miles, it's certainly within the realm of possibility for a belt to start showing wear, though some can last longer.

  1. Causes of Squealing:

    • Worn Belt: The rubber can harden, crack, or lose its grip over time.
    • Loose Belt: The tensioner might be failing, or the belt wasn't properly tensioned after a previous service.
    • Contamination: Oil, coolant, or other fluids on the belt or pulleys can cause slippage and noise.
    • Failing Pulley/Tensioner: A worn idler pulley or a failing automatic tensioner can also cause noise and belt issues.

  2. DIY Replacement on Forte GT: Replacing the serpentine belt on your 2020 Forte GT is generally considered a moderate DIY task. It's accessible, but you'll need to understand how the automatic tensioner works.

    • Tools Needed: You'll typically need a wrench or a serpentine belt tool to release the tension on the automatic tensioner, a diagram of the belt routing (often found under the hood or in your owner's manual/service manual), and a new serpentine belt.
    • Procedure: The basic steps involve locating the tensioner, using the wrench to rotate it and release tension, carefully removing the old belt, routing the new belt correctly around all pulleys, and then releasing the tensioner to secure the new belt.

  3. Tips for DIY:

    • Diagram: Take a photo of the current belt routing before you remove it, or find a reliable diagram. Incorrect routing can cause serious damage.
    • Inspect Pulleys: While the belt is off, manually spin each pulley (alternator, AC compressor, power steering pump if applicable, idler pulleys) to check for excessive play, grinding noises, or resistance. This can help identify a failing component that might have contributed to belt wear or noise.
    • Tensioner Check: Ensure the automatic tensioner moves smoothly and provides adequate tension with the new belt.

  4. When to See a Shop: If you're uncomfortable working in the engine bay, can't easily access the tensioner, or if the noise persists after replacing the belt, it's best to take it to a professional. They can diagnose if a pulley or the tensioner itself is the root cause.

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