The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

Squealing noise from engine bay on 2017 Jeep Compass - serpentine belt?

0

Robert C. · rep 0 · May 22, 3:28 AM · 1 replies · solved · Question

Vehicle: 2017 Jeep Compass Latitude

Hello everyone, I have a 2017 Jeep Compass Latitude with the 2.4L engine, and it's got about 85,000 miles on it. For the past few weeks, I've been hearing a loud squealing noise coming from the engine bay, especially when I first start it up in the morning or when it's damp outside. It sometimes goes away after a few minutes, but it's getting more frequent.

I'm pretty sure it's the serpentine belt, but I wanted to confirm. Is this a common issue for the Compass at this mileage? How difficult is it to replace the serpentine belt myself? And are there any other components I should check while I'm in there?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 3:28 AM

0

ClearTheCode admin answer:

For your 2017 Jeep Compass Latitude with the 2.4L engine, a squealing noise from the engine bay, especially on startup or in damp conditions, is a classic symptom of a worn or loose serpentine belt. At 85,000 miles, it's definitely within the typical lifespan for a serpentine belt to start showing wear.

  1. Serpentine Belt Lifespan: Serpentine belts generally last between 50,000 to 100,000 miles, depending on driving conditions and material quality. Your mileage puts you right in the range where replacement is often necessary.

  2. Causes of Squealing:

    • Worn Belt: The rubber can harden, crack, or become glazed, losing its grip on the pulleys.
    • Loose Belt: The automatic tensioner might be failing, or the belt might simply be stretched.
    • Misaligned Pulleys: Less common, but can cause premature wear and noise.
    • Failing Accessory: A failing bearing in an accessory driven by the belt (e.g., alternator, power steering pump, A/C compressor, idler pulley) can also cause squealing and put extra strain on the belt.

  3. DIY Difficulty: Replacing the serpentine belt on your 2017 Jeep Compass 2.4L is generally considered a moderately easy to moderate DIY task. You'll need:

    • A new serpentine belt (ensure it's the correct length and width).
    • A long breaker bar or ratchet with the correct size socket (often 15mm or 16mm) to release tension on the automatic tensioner.
    • A diagram of the belt routing (usually found under the hood or in the owner's manual/service manual).

    The main challenge is often accessing the tensioner and routing the new belt correctly around all the pulleys.

  4. Components to Check While You're There:

    • Automatic Belt Tensioner: Check for proper spring tension and smooth operation. If it feels loose or wobbly, it might need replacement.
    • Idler Pulleys: Spin them by hand. They should spin freely and quietly without any grinding or excessive play. Replace if noisy or rough.
    • Accessory Pulleys: Check the pulleys on the alternator, A/C compressor, and water pump for any wobble, excessive play, or rough spinning. This can help identify a failing accessory before it causes more significant problems.
    • Belt Condition: Look for cracks, fraying, glazing, or missing ribs on the old belt. This confirms it was due for replacement.

When to See a Shop: If you're unsure about the process, can't access the tensioner easily, or if replacing the belt doesn't resolve the squealing (which might indicate a failing accessory or tensioner), it's best to take your Compass to a qualified mechanic. They can properly diagnose the source of the noise and ensure all components are functioning correctly, preventing potential breakdowns.

Menu

Help & account