Engine And Engine Cooling Problems of Kia Motor Sorento - part 1

This 2017 kia Sorento with the 3. 3l v6 lambda ii engine appears to have had possible rod bearing failure or connecting rod failure. This vehicle has 107,987 miles on it when the incident happened. 2 hours into a drive on the highway, the car began to sound like it had a possible exhaust leak, however this was followed shorty by knocking which prompted us to pull over and just as we made the shoulder as the engine quit and began to smoke heavily. Went to quickly open the hood and the smoke died down in about a minute. Most likely due to the oil hitting the exhaust from the hole the rod left in the block. There were no oil lights or other indications that anything was going to happen prior to this. The vehicle has been maintained meticulously with all maintenance items. This vehicle is available for inspection. Let me know if this needs to happen prior to kia getting ahold of it. Our entire family was in the car (5 people including our dog) and we were at highway speeds when this happened. Fortunately we were able to get over just before the engine blew. Also fortunate enough to open the hood fast enough to get it cool before it started a fire. We are going to take it to the dealer for inspection, however both the dealership and kia customer care said this is not currently under any warranty for engine failure. I have yet to inspect myself to take pictures from under the car, so no inspection has been thoroughly performed. As previously stated, there was no warning lights, the car did sound like it started to have an exhaust leak no more than a minute or two before the knocking started.

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1. What component or system failed or malfunctioned, and is it available for inspection upon request? the engine misfired due to a broken valve in one of the cylinders. This failure occurred approximately two months after completing the scheduled 100,000-mile service at a kia dealership. The affected parts (valve, cylinder components) should still be available for inspection by kia or a third party. 2. How was your safety or the safety of others put at risk? the vehicle suddenly lost power and stalled in the middle of the highway while driving at normal speed. This created a dangerous situation where I could have been struck by oncoming traffic while trying to safely exit the roadway. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? the issue was confirmed by a repair shop, which diagnosed the cause as a misfire due to a broken valve. I have service documentation of the diagnosis available. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? the vehicle has not yet been inspected by the manufacturer or insurance representatives, but it was inspected by the servicing dealership and/or an independent mechanic who confirmed the valve failure. 5. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? prior to the complete failure, the check engine light illuminated and the vehicle began running roughly (misfiring). These symptoms appeared very shortly before the breakdown, giving me no meaningful time to react before the engine stalled.

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The contact owns a 2022 kia Sorento. The contact stated that while at a stop light, the accelerator pedal was depressed, and the vehicle lost motive power, with the check engine warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that there was a misfire in cylinder #4. The vehicle was not repaired, and the mechanic referred the contact to the dealer for additional assistance. The vehicle was taken to the dealer and was diagnosed with a fuel injector failure. The contact was informed that the fuel injectors needed to be replaced. The vehicle was not repaired. The contact was informed that the parts need to be ordered to repair the vehicle. The manufacturer was not made aware of the failure. The approximate failure mileage was 70,880.

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Dad, driving back with daughter, noticed a brief and unusual delay between shifts, but was able to make it home fine. A few minutes later, mom left for picking up son after school. On the way there, she noticed sluggish acceleration, louder engine sounds/effort on acceleration and mild slopes, and there was a lag in acceleration response. After powering off the vehicle and sit in idle to recharge battery, restarted trip home and was unable to get acceleration response up the hills, doing only 20 mph. Engine was struggling and not getting any acceleration response. No check engine lights were generated as usual. Dad called service manager at kia temecula and he said to call kia roadside assistance to come tow the car to them. He also said that likely we'll be out of pocket to do any car rentals until they have a car to loan to us.

August 18, 2025 at 3pm pt; my 2025 kia Sorento x-line was parked in my driveway facing the street. I had the engine on, and in park mode, ac on, back hatch door open. No one was in the vehicle. I was standing behind the vehicle when it then started to go in reverse, then stopped for 2 seconds. It then proceeded to go into reverse again. The garage door was open. The vehicle pushed me into the blades of our lawn mower (it is stored in the garage on its end, so the blades face the garage door), and continued to push me and the lawn mower into our gardening tool supply rack. I did all I could to stop the vehicle with my body and yell for help. I was trapped. The vehicle eventually stopped because the back hatch door was open and caught on the upper part of the garage frame. I got myself unstuck and got out to the right, and went straight to the passenger front door to check out the gear shift. It was still in park mode. All was captured on our ring camera. I called kia corporate customer service and received a case number (25476533) and was told I would hear back in 10 business days. This was after calling the dealership twice directly (elk grove kia) leaving a detailed message with no response.

The vehicle emits a strong fuel odor: seems to be around the rear of vehicle & front engine compartment of vehicle. Seems the fuel system, both low & high pressure fuel pumps and their pipes channels are leaking to emit a strong fuel odor. Extreme high volatile combustion & fire risk! remedy: the fuel system including both low & high pressure fuel pumps & their pipes channels need replaced with strong, better engineered components! a newer vehicle like this should not be having fuel system failures.

83,000 miles just changed oil and knock sensor and engine seized.

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The contact owns a 2018 kia Sorento. The contact stated that upon starting the vehicle, the vehicle made an abnormal knocking sound. Additionally, the contact stated that while driving and depressing the accelerator pedal all the way to the floorboard, the vehicle failed to exceed 18 mph. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed, and the failure was linked to the knock sensor detection system(ksds). The vehicle was not repaired. The local dealer was unreachable. The manufacturer was not notified of the failure. The failure mileage was 85,798.

My motor is knocking and losing compression.

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On 8/16/2025 my 2017 kia Sorento experienced major engine failure which resulted in loss of power and severe engine misfiring. I submitted a warranty claim with full maintenance documentation to kia cooperation but was denied coverage on 8/27/2025. This denial is improper because 1. The engine type is covered under recalls and/or the kia engine class action settlement, which extends coverage to 15 years / 150,000 miles and my vehicle currently has 94423. 2. I complied with all maintenance requirements and have already provided numerous records. 3. Engine failure presents a serious safety hazard and has been widely reported.

Kia Sorento has a well documented engine failure. The issue starts with the vehicle consuming engine oil. Subsequently the connecting rod bearings fail resulting in severe engine failure. This happens even with regular oil change maintenance. I experienced that with this vehicle. Kia was contacted but said this vehicle's VIN did not fall under the list of affected vehicles in their class action lawsuit.

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Nhtsa complaint – kia Sorento vehicle: 2025 kia Sorento component/system: engine, fuel/propulsion system, power train date of incident: [xxx] location: [xxx] , southbound description of the problem: while driving my 2025 kia Sorento southbound on [xxx] , the accelerator did not respond properly both on a flat road and while going uphill. The engine failed to provide adequate power, creating a serious safety risk on the highway. The vehicle is currently at the dealer for inspection, which will take place on Monday. However, I am extremely frustrated that I have not been provided a loaner or rental vehicle, even though I need transportation immediately. Additionally, as a u. S. Citizen, I feel I am being treated unfairly and receiving discriminatory service compared to others in similar situations. No warning lights or messages appeared before the incident. The dealer has not confirmed or fixed the issue yet. The vehicle has not been inspected by the manufacturer, police, or insurance representatives. I am reporting this issue to document the safety risk, service denial, and potential discrimination, and to seek proper investigation. Inspection availability: unknown – vehicle can be inspected upon request. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

On [xxx], while driving home at highway speeds, I attempted to accelerate and the vehicle bucked and sputtered violently. The check engine light came on, and my obd scanner showed multiple misfires in cylinder 1. I have also experienced suspected transmission slipping from a full stop and during highway driving—rpms will spike (up to ~5,500) with little or no increase in speed, sometimes after releasing the accelerator. These issues have occurred multiple times prior to [xxx]. On [xxx], while traveling 80–85 mph, I released the accelerator and the rpms again spiked to ~5,500 while the vehicle rapidly lost speed and barely moved. Starting mileage at first occurrence is unknown, but kia should have this documented from a prior service visit. The condition is ongoing and worsening, creating a serious safety risk by causing loss of acceleration and unpredictable power surges while in traffic. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The contact owns a 2017 kia Sorento. The contact stated that while driving at 20 mph, the contact heard a clicking and banging sound coming from the engine. The contact mentioned that while looking through the front driver's side mirror, she noticed smoke coming from the engine. Several unknown warning lights illuminated. The contact pulled over to the right side of the road, turned the vehicle off and then exited the vehicle and opened the hood of the vehicle and noticed flames coming from the engine. No injuries were sustained. No medical attention. The contact dialed 911, but there was no police report filed. The fire chief showed up at the scene and extinguished the fire. The vehicle was not destroyed. The vehicle was towed to a collision center. The manufacturer was notified of the failure and opened a case. The approximate failure mileage was 105,000.

I was driving and the vehicle shut off. All electric still on lights, radio, dash, etc. No issues or noises indicating that the engine was having faliure. Did not overheat, had oil and gas. Just bought car used 6 months ago with 140k miles. Had it towed to mechanic and was told the engine was locked. Engine repair is my only option that is going to cost 5-8k. Vehicle has been maintained regularly with only one previous owner and no major repairs ever needed to be done.

Was on my way back from picking up my child father from work. My 2 kids were also in the car [xxx] & [xxx] old. My car started smoking and another motorist pulled down his window to let me know that my car was on fire from underneath. I immediately got all of us out of the car and my child father went to go pop the hood and noticed that fire was coming near the engine !! made an insurance claim and they deemed the car as a total loss. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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Out of no where engine light starts flashing and had it checked code p1326 knock sensor detection system. Now need a new engine. This is a common issue for this make and model but somehow my VIN isn’t on the recall. This isn’t right.

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We have been having problems with the speed control not functioning. Sometimes we couldn't set the speed or slow it down. Now it doesn't function at all! when it was working the cancel switch would also not work and we had to use the brake pedal to shut it off. Later on while driving through town with the cruise control still on, I stopped at a traffic light and the engine began to race at a high rpms. I took my foot off the gas pedal not knowing exactly what it would do and rpms settled down. Luckily the SUV didn't accelerate into the vehicle in front of me. The engine has done this a couple of times with or without the cruise control on. My wife drives this vehicle with our grand children onboard and I am highly concerned about their safety.

My 2022 kia Sorento keeps loosing power while I’m driving. Now the check engine light is o w.

My 2017 kia Sorento has developed intermittent safety-related engine issues that have resulted in loss of acceleration and stalling. December 2024: after a two-hour drive, the vehicle stalled and would not restart. Roadside assistance confirmed the engine oil level was low, despite no external leaks. After approximately two hours, the vehicle restarted. [xxx]: after driving about 30 minutes and parking for 10–20 minutes, the engine started with loud rumbling/knocking noises, and the accelerator was unresponsive. The problem resolved only after shutting the car off and restarting. Video is available. The kia dealer performed a rod bearing test which passed, but the symptoms match early failure stages of the known theta ii engine defect covered under kia’s lifetime warranty (pi1802 settlement). Kia attributes the issue to “low oil” as a maintenance problem, but the oil consumption appears to be internal and abnormal. This defect creates a serious safety risk because it causes sudden loss of power, which could lead to an accident if it occurs while driving in traffic. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The engine light came on and then two hours later the entire system started flashing and the engine started stalling. The car would not accelerate and had to be taken to kia. This is the second time this has occurred. The first time, the engine froze and I could not accelerate on the highway. I barely got to the side and had to get towed to kia. Please, please investigate this vehicle and the power train.

Growl on cold start.

I don’t understand how my 2017 kia Sorento doesn’t have a recall on its engine. I bought the car in cash and 1 month the car doesn’t want to start. . I don’t understand I wasted money… I need engine replaced and don’t have $10000.

My car will sometimes completely stall at a light when stopped and not restart with the automatic stop system it has happened about 5 times almost causing a wreck.

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The contact owns a 2024 kia Sorento. The contact stated that during a routine oil change, the mechanic added an unknown oil additive to the vehicle. The contact stated that on several occasions while driving, the accelerator pedal was depressed, and the vehicle lost motive power and drove sluggishly. The vehicle was taken to a dealer for an oil change, and the mechanic observed metal shavings in the oil. The vehicle was taken to another dealer, but it had not yet been diagnosed. The manufacturer was notified of the failure. The failure mileage was approximately 31,000.

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I now believe I've had a lemon. Since I purchased my car in 2016 they have been trying to diagnose a smell from the exhaust and started replacing parts, this was in miami. Then for a few years in vegas the car spent months at the dealership trying to fix a burning oil issue which I've been told there is a known problem with the turbo still isn't fixed. From the first year I had paint peeling on my snow white pearl color which has numerous forums about kia/Hyundai paint issues especially with my color. I had them repaint the hood which took twice after the bad job the first time. I saw little bumps in the paint which I thought was over-spray from that incident and now I have peeling from one of those spots which is how they form from what I read. My car is 2016 but only has 65k miles. The spot now is getting bigger by the week, the rain isn't helping. There are other spots around the edges and a big spot on the roof and others I've already filled in with a paint pen which looks ugly. If you see my car, inside and out it looks pretty close to new from the way I've taken care of the car. The paint started in August of 2016 but most recently 2025. The engine issues were day one but most recently 2024 they fixed a cylinder that got a hole in it after consuming all the oil and it seems to be headed down that path with the remedy they are offering at kia. The engine and paint should be convered under a class action lawsuit or recall to hold them accountable and fix the issues.

Oil consumption.

The contact owns a 2014 kia Sorento. The contact stated that while driving at 70 mph, the vehicle stalled. The check engine and low oil pressure warning lights were illuminated. The vehicle was towed to an independent mechanic, where it was diagnosed that the engine had failed and needed to be replaced. The vehicle was not repaired. An unknown dealer and the manufacturer were notified of the failure. The failure mileage was approximately 143,000.

While driving, the engine warning light suddenly turned on and the vehicle began shaking violently. I was forced to pull over, and the car had to be towed. The dealership diagnosed engine failure caused by excessive oil consumption. Despite routine maintenance, the manufacturer refuses to cover repairs under warranty. This creates a serious safety hazard, as engine components like spark plugs can fail without warning, potentially leaving drivers stranded or causing accidents.

The contact owns a 2019 kia Sorento. The contact stated that while driving at an undisclosed speed, the vehicle abnormally shuddered, with the low oil warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with engine failure due to excessive oil consumption. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The vehicle was taken to the dealer, where the diagnostic result was confirmed. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The approximate failure mileage was 74,750.

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Paint peeling everywhere an innocent burning excessive oil.

It feels like the engine is starting to cut out and as soon as that happens, the electronics in the car seem to start fighting each other. They adaptive steering and the lane assist it feels like they don’t work together anymore and I’m always fighting it or it won’t stay in the right lane and the car jerks from line to line. If I turned the lane assist off then it drives ok but the engine still is doing something funny.

Engine started making rattling sounds during startup and when accelerating. Kia dealer said the engine failed and needed replaced. Repair cost were around $9000. 00.

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I have a 2017 kia Sorento. On Sunday [xxx], I was driving on [xxx] in oklahoma when I started hearing a weird knocking noise and was having difficulties accelerating. I was in the car with my mother and [xxx] son just between guthrie and edmond ok which is a very heavily trafficked area. My car suddenly shut off, I coasted to the side and put my hazards on. After 2 hours waiting for a tow truck to tow my vehicle back to my home town a mechanic informed us the engine was blown and could be apart of their lawsuit against engines. After reading many many other peoples encounter with kia, kia acknowledges issues with the engines and were placed in a lawsuit however they find every way out of responsibility for replacing the engines that are faulty. Not only did this put others in danger while I was driving under the 75mph speed limit but it is July in oklahoma and in the upper 90’s but feels like the hundreds placing myself, my mother and child at risk of heat exposure due to this faulty engine and having to wait 2 hours for a tow truck. I purchased the vehicle in 2020 during covid when many business’ were shut down and more difficult to receive oil changes properly, and many people reported that since the engine was faulty it was eating away at the oil faster meaning oil did not go as far as it should. This company should replace all faulty engines regardless of their oil change reports and software updates as this is a massive safety feature and puts lives at risk on the road. No warning lights went off until the engine already shut down. They need to accept responsibility on these models as this is a major cost in a time many people cannot afford repairs for something that should be safe to drive. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The oil was changed with no leak, and less than 1000 miles later, it all disappeared. Now, it has gone into limp mode and thrown a knock code due to no oil. Having it sent to a shop four times in a week is not okay. If there's no leak and no gasket problems, where did all the oil go? I have more posts about this daily. I have 96,000 miles on this engine with full synthetic changes every time. It was healthy, and now it's not because it's overeating oil. Make it make sense, please.