Cars

Used Kia Sorento Reliability: Engine Problems and Recalls

JH
John H
Senior Cars Expert
8 min read

Used Kia Sorento Reliability: Engine Problems and Recalls

When shopping for a reliable and spacious three-row SUV, the Kia Sorento frequently makes the shortlist. Known for its value, modern design, and long list of standard features, the Sorento has built a solid reputation since its debut in 2002. However, like any vehicle, it has had its share of reliability concerns—particularly with engine problems and safety recalls over the years.

For buyers considering a used Kia Sorento, understanding the model's reliability history is crucial. This comprehensive guide dives into the most common engine issues, known recalls, and overall dependability across various model years. Whether you're eyeing a 2015 Sorento or a pre-owned 2020 model, this article will help you make an informed decision.

Kia Sorento Reliability Overview

According to J.D. Power, the Kia Sorento consistently scores well in initial quality surveys, often beating competitors in its class. RepairPal gives the Sorento a reliability rating of 3.5 out of 5, which ranks it #12 out of 26 midsize SUVs. The average annual repair cost is $514, which is below average—indicating that while the Sorento isn’t perfect, it’s generally affordable to maintain.

However, reliability can vary significantly by model year. Some years are plagued with engine-related issues, while others are considered among the most dependable SUVs on the used market. Let’s explore the Sorento’s engine problems and recalls in detail.

Common Kia Sorento Engine Problems

1. Engine Failure Due to Manufacturing Defects (2011–2014 Models)

One of the most serious and widespread issues affecting the 2011–2014 Kia Sorento models is premature engine failure, particularly in vehicles equipped with the 2.4L Theta II and 3.3L Lambda II engines. These engines were part of a larger Kia and Hyundai engine crisis that led to multiple class-action lawsuits and millions of recalled vehicles.

The root cause lies in manufacturing defects involving the connecting rod bearings. Insufficient lubrication due to undersized oil passages or debris in the oil system could lead to bearing wear, metal shavings in the oil, and ultimately engine seizure or catastrophic failure.

Kia eventually extended warranties for affected models and implemented updated engine designs in later years. But if you're considering a used Sorento from this era, it's wise to have a thorough inspection, including an oil analysis, to check for signs of internal wear.

2. Oil Consumption Issues (2011–2014 and Some 2015 Models)

Another issue tied to the Theta II 2.4L engine is excessive oil consumption. Some owners reported needing to add oil every 1,000 miles, even without visible leaks. This problem is linked to piston ring design flaws that allow oil to burn in the combustion chamber.

While not all 2.4L engines suffer from this, it’s a known risk. High oil consumption can lead to overheating, increased emissions, and long-term engine damage. Kia acknowledged the issue and offered technical service bulletins (TSBs), but no official recall was issued specifically for oil consumption in the Sorento.

3. Engine Stalling and Sudden Power Loss (2017–2019 Models)

The 2017–2019 Kia Sorento models, especially those with the 2.0L turbocharged four-cylinder engine, have been reported to experience sudden stalling or loss of power while driving. This is potentially dangerous and has raised safety concerns.

The cause is often tied to fuel system issues, such as a faulty fuel pump control module or fuel rail pressure sensor. In some cases, software glitches in the engine control unit (ECU) have been blamed for improper fuel delivery.

Owners have reported that the vehicle may shut down unexpectedly at highway speeds, increasing the risk of accidents. Kia issued a recall for some of these issues, which we’ll cover in detail later.

4. Turbocharger Failure (2017–2020 Models with 2.0T Engine)

The 2.0L turbocharged engine, while powerful and efficient, is prone to turbocharger problems in certain model years. Symptoms include reduced power, loud whining noises, and excessive smoke from the exhaust.

Turbo failure is often due to oil coking—when oil residue builds up and blocks lubrication to the turbo bearings. This is usually a result of short trips and frequent cold starts without allowing the engine to warm up properly.

Preventive maintenance, such as using the correct oil and allowing the engine to idle for a minute after high-speed driving, can help extend turbo life. However, replacements can cost over $2,000, making this a notable concern for turbo-equipped models.

Kia Sorento Recalls: What Buyers Need to Know

Recalls are critical for used car buyers. They indicate known safety or mechanical issues that the manufacturer has agreed to fix—often free of charge. The Kia Sorento has had several recalls over the years, some related to engine safety. Let’s review the most significant ones.

1. Engine Fire Risk Due to Potential Oil Leaks (2011–2014 Sorento)

NHTSA Recall Number: 15V-705 (2015 recall)
Affected Models: 2011–2014 Kia Sorento with 2.4L or 3.3L engines

This recall addressed a defect in the engine’s lower intake manifold. Cracks in the manifold could cause oil leaks, which might come into contact with hot engine components and ignite, leading to an engine fire—even when the vehicle was parked.

Kia instructed dealers to inspect and replace the intake manifold if necessary. Owners were also advised to install a software update to reduce engine stress during cold starts, which was believed to contribute to cracking.

What to Do: Check the NHTSA website or Kia’s VIN lookup tool to confirm if the recall was completed on any used Sorento you’re considering.

2. Fuel Pump Failure Leading to Stalling (2017–2019 Sorento)

NHTSA Recall Number: 20V-177 (2020 recall)
Affected Models: Approximately 210,000 Kia Sorento vehicles from 2017–2019 with 2.0L turbo engines

This recall involved low-pressure fuel pumps that could fail, resulting in a loss of engine power or stalling. The problem stemmed from a defect in the fuel pump’s internal components, which could degrade prematurely.

Kia replaced the faulty fuel pump control modules and updated the ECU software to improve fuel delivery monitoring.

It’s important to note that this recall was issued years after the vehicles were sold. Many owners were unaware of the risk until the recall was announced. Always verify that recall repairs have been performed before purchasing a used Sorento.

3. Airbag Inflator Recalls (Multiple Years)

While not engine-related, the Sorento was included in the massive Takata airbag inflator recall affecting millions of vehicles worldwide. Faulty inflators could explode with too much force, sending metal shrapnel into the cabin.

Affected model years vary by region and trim, but generally include 2008–2013 Sorentos. Kia offered free airbag replacements, and this recall is considered safety-critical.

4. Engine Control Unit (ECU) Software Issues (2015–2016 Sorento)

NHTSA Recall Number: 18V-759
Affected Models: 2015–2016 Kia Sorento with 2.4L engine

This recall addressed a software glitch in the ECU that could misread sensor data and cause the engine to enter a reduced power mode. In some cases, the vehicle would shut down unexpectedly.

The fix involved reprogramming the ECU with updated software. This recall highlights the importance of ensuring that all software updates have been applied to a used vehicle, especially for models with complex engine management systems.

5. Fuel Hose Degradation (2020–2021 Sorento)

NHTSA Recall Number: 21V-739
Affected Models: 2020–2021 Kia Sorento with 2.5L engine

Some early fourth-generation Sorentos had a fuel hose that could degrade over time due to exposure to engine heat, increasing the risk of fuel leakage and fire. Kia replaced the affected hoses with an improved design.

This recall was relatively small in scope but underscores that even newer models aren’t immune to manufacturing issues.

Model Year Reliability Breakdown

To help you make a smarter used car purchase, here’s a year-by-year assessment of the Kia Sorento’s reliability, focusing on engine concerns and recall history.

2003–2009 (First Generation)

The first-gen Sorento was built on a body-on-frame platform and shared components with the Hyundai Santa Fe. While rugged, it’s now well beyond its prime. Common issues include:

Engine problems are rare in these older models, but finding well-maintained examples is difficult. Rust can also be an issue in northern climates. Not recommended unless you’re a DIY enthusiast or need a budget workhorse.

2010–2014 (Second Generation)

The second-gen Sorento switched to a unibody design and offered more refined driving dynamics. However, this is the era with the most serious engine concerns.

Despite the engine risks, these models are popular due to their low price. If you buy one, ensure it has had the extended warranty service and engine inspections. Avoid models with a history of oil consumption or knocking noises.

2015–2016 (Facelift of Second Generation)

Kia updated the engine lineup, introducing a new 2.4L GDI engine and improving build quality. However, the 2015–2016 models still had some carryover concerns.

These years are safer bets than earlier models, especially if maintenance records are available. The 3.3L V6 option is smooth and reliable, though less fuel-efficient.

2017–2020 (Third Generation)

The third-gen Sorento brought a more modern interior, better tech, and refined engines. But the 2.0L turbo engine introduced new issues.

The 2.4L naturally aspirated engine is the most reliable option in this generation. If you want more power, the turbo is acceptable—but ensure it has been properly maintained with regular oil changes and warm-up/cool-down periods.

2021–Present (Fourth Generation)

The current Sorento features a redesigned platform, hybrid and plug-in hybrid options, and improved safety tech. Early reports suggest excellent reliability.