2014 Kia Sorento: sudden loss of power

Filed Jul 6, 2026 · Engine · SC

On XXX, the 2.4L Theta II GDI engine on our 2014 Kia Sorento (current mileage: 160,000) catastrophically seized without warning while my [XXX] was driving at interstate speeds at night. This caused an immediate and sudden loss of power, power steering, and braking assist, creating an extreme traffic hazard. No one was injured and the driver was able to safely coast to the shoulder, but it created a highly dangerous situation on a busy interstate. We had the vehicle towed to an independent mechanic who pulled the starter and confirmed a total mechanical engine seizure. The vehicle was then towed to a Kia dealership. This vehicle has suffered from the well-documented Theta II factory manufacturing flaw where debris destroys the connecting rod bearings, leading to high oil consumption and sudden highway seizure. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 11, 2026 · Engine, Transmission · TN

Car burns oil to the point it requires 1 qt/500 mile. Had oil consumption test when issue first started in 2024 by kia, was told there was no problem. Car has continued to have this issue and has now broke connecting rod due to engine starvation even through the oil is to the full mark. I lost all power while driving with no warning before hand. Kia has admitted these engines have oil consumption issues that can lead to this exact problem and many other consumers have complained of the same situation in which Kia will not replace the flawed engine.

Filed Feb 18, 2026 · Engine · GA

1. The engine consumed its own oil and a rod bearing failed and destroyed the engine 2. This happened while my wife was traveling on I20 at 70mph and almost resulted in a wreck when the engine died and she lost power to the wheels 3. Nalley Kia in Lithonia, GA has confirmed that the engine consumed its own oil which cause a rod bearing to fail and ultimately led to the engine failure 4. No warning lights prior to this happening, just a knocking sound as she merged onto I20

Filed Jan 28, 2026 · Engine, Transmission · IA

While driving at low speed and turning, the vehicle experienced a sudden loss of power accompanied by engine knocking. The engine stalled and would no longer operate normally. The vehicle was inspected by a mechanic, who found metal fragments/shavings in the engine oil, indicating internal engine damage. The engine is now inoperable and has effectively failed. There were no warning signs prior to the failure other than the knocking noise immediately before the loss of power. This failure occurred suddenly and without driver input. The sudden engine failure caused a loss of propulsion while the vehicle was in use, creating a potential safety hazard for occupants and surrounding traffic. The vehicle required towing due to engine failure. Kia Consumer Assistance was contacted regarding the engine failure. I was informed that no recalls apply to this VIN and that the vehicle is out of warranty. Kia Consumer Assistance stated they would not inspect or document the engine failure unless I paid out of pocket.

Filed Nov 5, 2025 · Engine · WA

We financed this 2014 Kia Sorento LX AWD from a used car dealer, and there has been nothing but problems with this vehicle. From the water pump, to insanely high oil consumption. I have verified that it is not leaking. Gaskets have been replaced, filters have been replaced, O2 sensors have been replaced, the water pump housing unit, impeller and pulley have been replaced, Spark plugs have been replaced and their boots, fuses have been replaced and renewed, even the brake light switch has been replaced. The coolant thermostat has been checked and it is functional, the MAP sensor is functional, the catalytic/exhaust manifold has been replaced, the in tank fuel pump/fuel sending unit has been replaced and the HPFP has been replaced and this vehicle still wants to consume oil like crazy and is flirting with deaths door step. It goes through fits of loss of power during acceleration in times when it really matters most, like trying to pass a vehicle. So most of the time I dont, because its not safe to try to pass vehicles and suddenly lose power and end up in a collision. I have checked all 6 recalls that have been opened and closed on my vehicle and part of me wonders if they were falsely closed. One of them indicates I should have had a partial, if not whole engine replacement at some point and I still have a VIN original engine in my vehicle. I have had this vehicle in my possession since August of 2025, and have done nothing but pour money into repairs on it, and i STILL feel like its going to leave me stranded on the side of the road. KIA needs to make good on their own warranty with as many issues as this year and model of vehicle that it has, and reinvestigate this vehicle. I believe the recalls on this vehicle were closed by a shady mechanic. Mind you, before it bought this vehicle, I had a mechanic look over it with an OBDII and no codes popped, none were stored and to this day, there still are none, but this engine is not behaving the way it should.

Filed Mar 14, 2025 · Brakes, Steering · OK

All of it. Car randomly shuts off and lose power steering. No. Dealership has inspected. ALL the lights in the dash light up, screen says battery discharge warning, car shuts off and lose power steering while driving down the road.

Filed Mar 5, 2024 · Engine · GA

Engine lost power. Analysis indicates the catalytic converters failed and need replacement. The engine and catalytic converters were replaced June 2022. This power loss occurred on major interstate, which could have resulted in death or serious injury. Defective products still being used. Per the dealer, the replaced parts have a warranty of 12 months or 12,000 miles. They know these issues exist and persist, putting lives at risk. We did have an engine light come on a few moments before the engine failed.

Filed Feb 5, 2024 · Engine, Transmission · TN

Was driving on highway when suddenly the vehicle lost power and couldn't maintain speed. Once stopped smoke came out from under hood which turned out to be from coolant. Had car towed to independent shop where it was determined that the engine head gasket/s are bad and engine head bolts and block. Fix is it needs a new engine. Always had maintenance done at dealer and this happened just out of warranty 106k miles.

Filed Dec 19, 2023 · Engine, Fuel system · KY

Fuel pump/engine began failing before the engine locked up. I was driving down a country road and lost power. When I floored it the top speed was approx. 7 MPH. I did not have anywhere to pull over. It has been inspected by the manufacturer and they said it needs a new engine. There were no warning signs or anything. I don't know how to answer if the problem has been reproduced. Via Kia forums, this is a common issue that is usually handled with the extended warranty. I've contacted Kia and they admit I'm having issues. Quote from their email "We apologize about the issues you are having with your engine and fuel pump in your 2014 Kia Sorento."

Filed Jun 6, 2023 · Electrical, Engine · TX

Engine control module when it fails vehicle will lose power and drops engine compression causing a danger to other traffic. I was on I-10 on Sunday morning at 60 mi. when all of a sudden it slowed down to 20mi causing other drivers too maneuver around me to avoid from colliding into my SUV. Had engine control module checked out and was advised me to take in to dealer to have it reprogramed or replaced. Either will be an expense I just cant afford replacing it would cost me over 2000.00 and reprograming any where from 200 to 500. If Im not wrong a recall for software added to engine control module was done around 2020 didnt that up.

Filed May 5, 2023 · Engine · WI

In December of 2020 my vehicle stalled in the middle of turning. I lost all power and was not able to accelerate. After a tow to my mechanic no reason could be found and vehicle started and ran fine. No check engine or codes displayed. Then in July of 2021 same issue happened. I again had it towed to my mechanic who said it could be the timing but referred me over to my local dealership. At the dealership I was told it was the timing and spent over $4,000 to replace. Two days after picking my vehicle up there was oil all over my garage. Another trip to the dealer where they stated it was a faulty crankshaft seal and no big deal. A month later and I was still having issues. Prior to the work done by KIA I never had oil consumption issues. I was then told to do a combustion clean out which I did. Since then I have been dumping oil into the vehicle. fast forward to April of 2023. While on the interstate the vehicle began to shake and lost all power. After a very expensive tow home and to the dealer the diagnosis was engine failure that they are unable to tell from where specifically and again no check engine or codes displayed. I was quoted $10,000 for an engine replacement for a vehicle I still owed 4,500 on and is not worth as much as the engine

Filed Mar 17, 2023 · Acceleration, Engine · MD

Doing speed limit of 70 lost power for no reason had 3 mo left 500 minutes from home on vacation towed home thank God was able to get off the free way .Tried getting Kia to fix said since it was 3 .3 engine not 4 cylinder the couldn't fix it.same problem metal in oil and on dip stick see now 2017 3.3 same problem someone going to get hurt or worse now I need a lawyer.left no car and disabled