2016 Kia Sorento: misfire or rough idle

Filed May 11, 2026 · PA

This car has been at the dealership twice in not even 2 years. I've only had it not even 3 years. The check engine light comes on and starts shaking. In June of 2025, a tune up was performed due to a cylinder 4 misfire code. P030400 In April of 2026, the same exact thing happened. Dealership said misfire on cylinder 4. Loss of oil would cause the engine to lock up causing harm to me and other people on the road. I am constantly putting oil in this car!!

Filed Jun 20, 2025 · Engine · OR

I was driving my Sorento SXL on a highway, at approximately 50 mph. With no warning, the engine began to run rough. The check engine light immediately began flashing. I was able to drive the car approximately three more miles to an auto service center. The engine ran very rough the entire time, wanting to stall when slowing down. The mechanic determined that my car’s oil reservoir was 4 quarts low, yet no engine oil light ever illuminated on the dashboard. It holds 6.2 quarts, and had only 2.2 quarts in it. Again, there was no illuminated light whatsoever telling me my car was dangerously low on oil. Because of this low oil condition, one of my timing chains skipped, and the cam rotated approximately 62° out of center. That’s what caused it to run rough. It appears my only options now are to have the engine apart, and hope no real damage was done, or replace it entirely. The engine for my car has been discontinued, with seemingly no suitable replacement from Kia. This could have been completely avoided if my car had alerted me to a low oil condition sometime before. This is very dangerous and it seems it is a common ailment among some Kia cars like mine. A low oil light would have informed me immediately that my car was in need of oil, a critical fluid for proper and safe operation. If I were towing a trailer when this happened, or on a winding stretch of road in snow or ice, this could have been catastrophic.

Filed Feb 17, 2025 · Fuel system · NH

Check engine light came on again after recall for engine bearing failure and engine block was determined to qualify for replacement by home Kia dealer , est July / August 2024 in North Hampton NH . After motor block changes the engine light came on and off while in Florida vacationing . Today’s date is February 17 , 2025 and my vehicle is presently in the hands of a local independent service center here in Florida . Other indicators recently noticeable were rough idle starting in the morning . The service center initially suggested problem might be injectors , and gasoline was noticeably in the oil pan . I’m presently waiting for a further / complete diagnosis from the service center . Relative to myself and my spouses safety further research on my own fire could be a potential with injectors causing a garage to be ignited and life threatening to us .

Filed Dec 30, 2024 · Engine · NY

I was driving on the Thruway and suddenly my check engine light came on and a large plume of black smoke came from the exhaust. The car was misfiring badly. I nursed it home and the next day took it to my mechanic, hoping it was a coil or plug. I had almost zero compression in cylinder #2. I then took vehicle to his engine repair shop. The owner told me the next day that I needed a new engine. I picked it up the next day and took it to my dealer, and they also told me I needed a new engine as well as a new intake manifold. Cost was $10,550.00. There were no warning lights or messages prior to the incident. There was a 1" X 1" hole in my intake manifold.

Filed May 6, 2024 · Engine · DE

6/23 the oil light started to flickering, in particular to coming to a stop or turning. This was even after just having an oil change the month before. I checked the oil & it was low already so, of course I put a couple quarts in. I continued to monitor my oil as this was happening. I did not see any oil leaking onto our driveway or from anywhere. I called our mechanic to schedule an appointment. By appointment day 7/17/23, the engine light came on. Mechanic could not perform a diagnostic until a software update was done by Kia. 8/16/23 Kia does software updates & takes care of any recalls. I returned to our mechanic 8/21/23 so he could now do the diagnostic test & make repairs. He replaced the intake manifold, valve cover gasket & changed the oil with new filter. 9/23/23 the oil light starts flickering again & oil is low. Called our mechanic & he asked us to monitor it another month. So, we added oil & the oil light stayed off for another month. 10/26/23 oil light is flickering AGAIN! On the phone AGAIN with our mechanic, who tells us he sees Kia has a "tab" on Sorento's burning oil. 11/14/23 diagnostic performed by my other mechanic who also previously worked at Kia. Diagnostic test shows #3 cyl misfire. 11/16/23 #3 cylinder ignition coil & spark plug replaced. 11/22/23 car starts riding rough. 11/25/23 diagnostic shows #1 cyl spark plug. 11/30/23 replaced remaining #1,2 & 4 cyl spark plugs. 1/10/24 I was driving on a 4 lane hgwy in traffic & the car suddenly went into limp mode & stalled. Luckily it started again & I was close to the exit. I was able to catch a break in traffic to get over as I could only go about 15 mph. 1/11/24 had the car towed to Kia after my mechanic ran a diagnostic & got p1326 knock sensor code. 1/12/24 Kia replaced the knock sensor, saying the car is good now. 2/4/24 car is riding rough. Mechanic changes remaining coils. 4/27/24 car goes into limp mode while going through an intersection. Dash & headlights remain on but won't start=tow

Filed Apr 26, 2024 · Engine · 129,000 miles · OH

While traveling to Atlanta, GE from Ohio, I stopped for gas south of Chattanooga. Immediately after ( within 10 miles), my 2016 Kia Sorento began to lose power and acceleration. In trying increase speed, the car started shaking and acting erratically. I pulled over to try to discern the issue, but could find nothing. ENGINE LIGHT WAS NOT ON. I thought it might be bad gas but this was not the case. I drove the car the rest of the way to Atlanta as this was late Friday night and Saturday I had a gig in Atlanta with no chance to visit a garage or dealership. On the return trip to Ohio the car continued to stall and I had to shift to N in order to keep the engine running during several traffic jams… still running erratically, That next Monday, [XXX], I took the car to a local garage. They reported a misfire in cylinder 2 and no compression in this cylinder. They suspected a burnt exhaust valve and recommended rebuilding the engine. I got a 2nd opinion at the dealer 15 miles away and they recommended a new/ rebuilt engine as it would have a 3 year warranty. I ok’d the repair and spent $13,600 plus another $400 for an engine bolt after the install. The newer engine lasted a week and it was another 4 weeks for the 2nd engine re-install. So… $117.66 for the first diagnostic and $14,000 after the installed engine. I checked with Kia and there were any with this engine. The answer was no. Since then, I have read complaints on forums concerning this Kia 3.3 Lambda engine. I would like to add my name to the list of complaints. There is no reason this engine should have failed. I kept up on service, changed the oil within 3-5k miles. I bought the car in Dec 2018 with 59k miles and since then have generated another 60k miles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 29, 2024 · Engine · WV

The engine (I think engine) stalls out, and several times the engine has completely died. Almost causing me and the other car involved a very serious accident. The vehicle stalls when sitting at the traffic light and I go to turn to accelerate and it stalls and after pushing/tapping the gas pedal repeatedly it will eventually stop and I'm able to then drive on. Also the car does not shift properly at all, it winds up and seems the get stuck and have to try accelerate before it shift. I keep getting errors on my dash saying "possible engine condition, please press schedule service" and then I run the diagnostic report and this is what it says CATEGORY (2) PowerTrain P0456 Evaporative Emission System - Leak Detected (Very Small Leak) Possible condition(s) with your Engine Control System has been detected. KlA recommends a full system check when convenient. To schedule an appointment with a KIA dealer, select Schedule Service on the screen. P0303 Cylinder 3 - Misfire Detected Possible condition(s) with your Engine Control System has been detected. KIA recommends a full system check soon. To schedule an appointment with a KIA dealer, select Schedule Service on the screen. Request Appointment I have taken my vehicle in the KIA Service Center twice and have given them the errors and described the issues I am having along with several other issues. The Kia service department has failed to provide me with a resolution to the problem stated above or any other issues I reported. They didn't even check oil as I requested. They advised me the oil levels were "fine" but once I checked it myself it was actually low, proofing they did not do any type inspection on the vehicle as requested. The advised me that there was nothing they could do about the stalling of the vehicle or the engine shutting down because they couldn't duplicate it. I'm not sure exactly what they are meaning by the statement. I then called KIA corporate number and the representative submitted a case onveh

Filed Mar 17, 2024 · Engine · CA

Check engine light turned on. The crankshaft has given out and the mechanic confirmed it needs a new engine. Cylinders 2&4 are misfiring. It has a rough idle and does not accelerate. Many online forms confirm that this is a Kia problem and different years have had a recall. I can not drive my car due to the shaking of the car and the unknown of possible breaking down. It revs up high before it shifts gears and shakes.

Filed Feb 27, 2024 · Engine · 142,000 miles · NY

The contact owns a 2016 Kia Sorento. The contact stated that the engine was empty of engine oil a week after an oil change. After oil was added, the contact's husband observed that a quart of oil had been consumed in a few days. The vehicle was initially taken to an independent mechanic, and it was discovered that excessive oil sludge and hard carbon build-up was in the valve and stems. The contact was also informed that the piston rings were worn and that there was scoring on the cylinder walls. The contact also stated that while driving at 55 MPH, the engine oil warning light flashed on the instrument panel and the vehicle stalled. Due to the failure, the vehicle was towed to the dealer where it was diagnosed with piston failure and a misfire in cylinder #2. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 142,000.

Filed Jan 5, 2024 · Engine · NE

Engine stalled while driving on highway. Took it to a Kia dealer and had it diagnosed as an engine block/head gasket failure. I have documentation of service. Service document reads “owner states vehicle runs rough when first started and a/c doesnt cool properly, started vehicle, a/c is currently working normally, upon inspection, found coolant about 3/4 gallon low and has bubbles coming up in reservoir tank, topped coolant, performed engine block test, photo of yellow fluid in tester indicates combustion gases are getting into cooling system and not going out exhaust as it is supposed to, took video of bubbles coming up into tank, advise more than likely due to overheating of engine either has crack in block or warped heads or a combination of the 2, advised recommended long block replacement as tear down is not cost effective , gave estimate, owner declined repairs at this time”. I have been made aware of other customers and people experiencing exact same issue with their Kia sorento models. We have only had this car for over a year from a reputable dealer.

Filed Nov 29, 2023 · Engine · KS

Last year before my 100,000 mile warranty was up, my vehicles engine light and oil light came on. This was following an oil change which was approximately 3000 in. I checked the oil to find out there was no oil. After adding oil, I took it to the Kia dealership and was told the place who changed the oil didn’t tighten my oil filter which was not true because there was no oil on the garage floor where it was parked. They then proceeded to tell me this engine uses a quart of oil every 1000 miles. Fast forward, to last week, I was driving on the highway when my car all the sudden had high RPM but wouldn’t accelerate. The vehicle started stalling and died. I pulled over and again tried to start the car which it died again. The oil level was fine. I took it to a mechanic to find out the engine had 3 cylinders misfiring due to not getting the compression needed resulting in the engine failing. The oil consumption resulted in needing a new engine and now outside of warranty.

Filed Nov 2, 2023 · Engine · CO

I noticed one day when filling up my wiper fluid that the engine was just slightly below the coolant low level. I topped off the coolant and tried to see if there was any leaks under the car. I couldn't see any. I started the vehicle and noticed there was bubbling in the coolant reservoir.I called my local mechanic and scheduled an appointment to bring the car in. The car wasn't driven until the day it was going in to be looked at. When driving the car in it started rough and slugish but then went back to normal. I drove it to my mechanics and on the way the car started running very rough engine shaking and the check engine light started flashing. I was only a few blocks away from the shop so I coasted in. They took the car in said it had a code for a cylinder misfire and started the car saying it was blowing white smoke out of the exhaust. They ran a test on the car and said they didn't want to take anything apart and to tow it to Kia. The car was towed to Kia in Wheat Ridge, CO. Car was inspected and the diagnosis was that the engine had overheated. The block is made of aluminum and so is the head. The headbolts that hold the two pieces together are a different type of metal. This manufacturing defect caused the threads in the aluminum block to strip or pull and loose tension on the head gasket. This allowed coolant to enter into one of the cylinders. Kia is recommending the engine be replaced for $11,910 and change. Car was regularly serviced and drove perfectly fine up until the day it went into the shop. Dealer service dept says this is very common on Kia and Hyundai 3.3L engines. Multiple cases around the same mileage.