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Excessive Oil Consumption in 2017 Jeep Cherokee 2.4L Tigershark

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Christine P. · rep 0 · May 22, 3:22 AM · 1 replies · solved · Question

Vehicle: 2017 Jeep Cherokee Latitude

I'm reaching out because I'm having a serious issue with my 2017 Jeep Cherokee Latitude, which has the 2.4L Tigershark engine. For the past few months, I've noticed it's consuming an alarming amount of oil. I have to add at least a quart every 1,000-1,500 miles, sometimes even more.

There are no visible leaks, and I don't see any blue smoke from the exhaust, so I'm really puzzled. The 'low oil pressure' light has come on a couple of times, which is what prompted me to start checking it so frequently. I'm worried about engine damage.

Is this a known issue with these engines? What could be causing this much oil to disappear? Any advice on how to approach this with a mechanic or dealership?

✓ Accepted solution

ClearTheCode Admin

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

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ClearTheCode admin answer:

Excessive oil consumption in the 2.4L Tigershark engine, particularly in model years like your 2017 Jeep Cherokee Latitude, is a well-documented issue. This problem has led to extended warranties and even class-action lawsuits in some cases. The lack of visible leaks or blue smoke indicates the oil is likely being burned internally.

Common Causes:

  1. Piston Ring Design Flaw: The primary suspected cause is a design flaw in the piston rings, which can allow oil to bypass into the combustion chamber and be burned off.
  2. PCV (Positive Crankcase Ventilation) System Issues: A clogged or faulty PCV valve can lead to increased crankcase pressure, forcing oil past seals or piston rings.
  3. Valve Stem Seals: Worn or hardened valve stem seals can allow oil to leak into the combustion chamber from the cylinder head.

Troubleshooting Steps & Diagnostics:

  1. Oil Consumption Test: The first step a dealership will likely perform is an official oil consumption test. This involves topping off the oil, sealing the dipstick and oil fill cap, and having you return after a specified mileage (e.g., 1,000 miles) to measure the actual consumption.
  2. Check for OBD Codes: While excessive oil consumption itself might not trigger a 'Check Engine' light immediately, related issues could. Look for codes like P0520 (Engine Oil Pressure Sensor/Switch Circuit Malfunction) if the low oil pressure light comes on, or P030x (Misfire Detection) if spark plugs are fouling due to oil.
  3. PCV System Inspection: A mechanic can inspect and test the PCV valve and associated hoses for blockages or failures.

When to See a Shop:

It is crucial to address this issue promptly to prevent potential severe engine damage. Schedule an appointment with a Jeep dealership. Be prepared to discuss the known issues with the 2.4L Tigershark engine and request an official oil consumption test. If your vehicle is still under an extended warranty related to this issue, or if you're within the mileage/time frame for a potential recall or service bulletin, the repair might be covered. This problem often requires significant engine work, such as piston and ring replacement, so professional diagnosis is essential.

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