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Squealing Noise from Engine Bay on 2016 Kia Forte LX

0

Sarah K. · rep 0 · May 25, 2:11 AM · 1 replies · solved · Question

Vehicle: 2016 Kia Forte LX 2.0L

Hi all,

I've got a persistent squealing noise coming from the engine bay of my 2016 Kia Forte LX, 2.0L, with about 95,000 miles. It's most noticeable when I first start the car in the morning, especially if it's a bit damp outside. The squeal usually lasts for a few minutes and then either goes away or becomes much quieter, but sometimes it comes back when I accelerate.

I'm thinking it might be the serpentine belt, but I wanted to get some opinions before I dive in. The belt itself doesn't look cracked or frayed, but it does seem a bit shiny. Is this a common issue for this model year Forte, and is it something a DIYer can tackle easily?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 2:11 AM

0

ClearTheCode admin answer:

A squealing noise from the engine bay, especially on cold starts or in damp conditions, is a classic symptom of a worn or loose serpentine belt. Given your 2016 Kia Forte LX has 95,000 miles, it's definitely a prime suspect for replacement.

  1. Diagnosis:

    • Visual Inspection: While the belt might not show obvious cracks, a 'shiny' appearance indicates glazing, which reduces friction and causes squealing. Also, check the ribs for any missing pieces or uneven wear.
    • Tensioner Check: The automatic belt tensioner could also be failing. With the engine off, try to wiggle the tensioner pulley. It should feel firm. If it wobbles, the bearing might be bad, or the tensioner spring is weak.
    • Accessory Pulleys: Spin each accessory pulley (alternator, AC compressor, power steering pump if applicable, idler pulleys) by hand (engine off!) to check for roughness or play, which could indicate a failing bearing.

  2. Potential Causes:

    • Worn Serpentine Belt: The most common cause. The rubber hardens and glazes over time, losing its grip.
    • Loose Belt Tensioner: A failing tensioner won't apply adequate pressure to the belt, allowing it to slip.
    • Failing Accessory Bearing: A pulley bearing (e.g., alternator, idler pulley) can seize or become rough, causing the belt to drag and squeal.
    • Contamination: Oil or coolant leaks onto the belt can also cause slipping and squealing.

  3. DIY Feasibility:

    • Replacing the serpentine belt on a 2016 Kia Forte 2.0L is generally considered a moderate DIY task. You'll need a serpentine belt tool (or a long breaker bar/ratchet) to release the tensioner, and possibly a diagram of the belt routing (often found under the hood).
    • It's a good idea to replace the belt tensioner and any idler pulleys at the same time, especially with 95,000 miles, as these components often wear out around the same time as the belt itself.

  4. When to See a Shop:

    • If you're uncomfortable working around the engine or releasing belt tension.
    • If, after replacing the belt, the squealing persists, indicating a deeper issue with an accessory or tensioner that you can't diagnose.
    • If the noise is accompanied by other symptoms like dimming lights (alternator issue) or difficulty steering (power steering pump issue).
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