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2017 Sorento EX Engine Knocking and Oil Consumption - Is this normal?

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Laura J. · rep 0 · May 22, 3:11 AM · 1 replies · solved · Question

Vehicle: 2017 Kia Sorento EX

Hey everyone,

I'm an owner of a 2017 Kia Sorento EX with about 85,000 miles on it. Lately, I've noticed a distinct knocking sound coming from the engine, especially when starting cold or accelerating. It's really concerning.

On top of that, I seem to be going through oil much faster than I should. I check it regularly, and it seems to drop significantly between oil changes, even though there are no visible leaks. I've heard about some Kia engines having issues. Is this a known problem for this model year and trim?

Has anyone else experienced this with their Sorento? What steps did you take? I'm worried about a major engine failure.

✓ Accepted solution

ClearTheCode Admin

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

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ClearTheCode admin answer:

It sounds like your 2017 Kia Sorento EX might be experiencing symptoms related to a known issue with certain Kia/Hyundai Theta II GDI engines, which includes the 2.4L engine often found in the Sorento. These symptoms—engine knocking and excessive oil consumption—are significant and should be addressed promptly.

  1. Identify the Cause: The knocking sound is often indicative of connecting rod bearing wear, which can lead to catastrophic engine failure if not addressed. Excessive oil consumption can exacerbate this by reducing lubrication. A common diagnostic trouble code (DTC) associated with this issue is P1326 (Knock Sensor Detection System), which triggers a limp mode to protect the engine.

  2. Check for Recalls/TSBs: Kia has issued recalls and technical service bulletins (TSBs) related to these engine issues, including a Product Improvement Campaign (PIC) for the knock sensor detection system. Your vehicle's VIN should be checked against these campaigns. If your vehicle falls under a recall or extended warranty for engine issues, Kia may cover the repair or replacement.

  3. Document Oil Consumption: Start meticulously documenting your oil consumption. Keep records of oil additions, mileage, and dates. This data will be crucial if you need to pursue a warranty claim or a repair under a recall.

  4. Professional Diagnosis: You should take your Sorento to a certified Kia dealership or a reputable independent mechanic immediately. They will perform a diagnostic check, including scanning for codes, listening to the engine, and potentially performing an oil consumption test. They can also check your vehicle's service history and eligibility for any relevant campaigns.

When to See a Shop: You should schedule an appointment as soon as possible. Continuing to drive with these symptoms could lead to complete engine failure, which is a much more costly and dangerous situation. Do not delay, especially if the check engine light is on or flashing.

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