2014 Kia Soul: misfire or rough idle

Filed Mar 23, 2026 · Engine · PA

Excessive Oil Consumption/Burning Catalytic Converter Clogging Check Engine Light/Misfires My engine has all of these issues. It has been determined as known KIA issues not driver/owner related. My car has 94,000 miles but none of what's going on is any cause other than KIA issues/problems. I work a full time job and have missed work due to car not being able to be driven at random times.

Filed Feb 28, 2025 · Engine, Fuel system · UT

Multiple misfires, codes Codes P062E x2 P0300 P0303 P0302 P0500 P0267 P0264 P050B

Filed Jul 5, 2023 · Engine · 207,000 miles · WV

The contact owns a 2014 Kia Soul. The contact stated while driving 65 MPH uphill, the vehicle went into LIMP mode. The contact veered to the side of the road. There was no warning light illuminated. The contact was able to drive to the residence. Upon inspecting the vehicle, the contact noticed that there was oil leaking onto the camshaft and onto the manifold. The contact stated that she replaced the valve cover gasket, the spark plugs, and the engine valve stem oil seal sets; however, the failure persisted. The vehicle was towed to the dealer, where it was diagnosed that cylinder #2 and cylinder #4 were misfiring, and the engine needed to be replaced. The dealer informed the contact that the vehicle could not be repaired under the federal safety agency Campaign Number: 20V750000 (Engine) as the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 207,000.

Filed Jun 6, 2023 · Electrical, Engine · NY

This vehicle has a serious oil consumption issue. It was first noticed about three years ago and has been getting progressively worse. As of June 2023 it consumes a full oil tank in about 2500 miles. Oil warning indicators flash very briefly on occasion but the light does not come on until the oil is below the dipstick. I have had it looked at by my local mechanic and by the Kia dealer who sold the car. The Kia dealer did a test and said it did not meet their standards for a recall. There have been a number of times that the oil has gotten so low without indicator warning that the engine will start running rough. on 11/04/22 the engine began bucking and stopped running at high speed. It was brought to the dealer who stated "Active DTC P0300 and P0303. Swapped Cylinder 3 coil pack and cylinder 1 coil pack. Misfire followed. No signs of cylinder damage". They replaced four spark plugs and Cylinder 1 coil pack. They stated that the cause of the issue was inconclusive and they didn't think related to oil consumption. I have recently receive notice of a proposed class action lawsuit from "Kia Engine Class Settlement, POBOX 4133, Portland, OR, 97208-4133 1‑800‑944‑1025. I confirmed that the VIN for this vehicle is included in the proposed case. It states very similar issues with many kia vehicles with the same engine. The lawsuit states "class vehicles have a defect that can cause engine seizure, stalling, engine failure, and possibly engine fire, and that some owners and lessees have been improperly denied repairs under the vehicle's warranty."

Filed Dec 5, 2022 · Engine · MA

Vehicle has engine knocking and cylinder misfires believed to have been caused by a previous recall/ system update. Kia was supposed to have updated their KSDS (Knock sensor detection system) in my 2014 Kia Soul. I was driving the Kia Soul to work back in October 2021 when check engine light started flashing and vehicle started shaking. Vehicle then went into limp mode and shut off. Vehicle was towed to Balise Kia in West Springfield MA where they informed me no repairs would be covered because the previous update had not been installed. I was then told the vehicle had to be driven at least 100 miles in order to qualify for repairs to be covered but still at this time, vehicle is disabled and does not run or drive

Filed Apr 25, 2022 · Engine · OH

Soon after buying my car used in 4/2021, I took the car into a KIA dealership to have the check engine light evaluated and asked for the open recalls to be addressed also. They didn't check the codes before doing the recalls and said the recalls performed cleared the codes and the check engine light was no longer on. I then had my mechanic do a tune up of spark plugs and oil, lube and filter change. The car performed better but would randomly experience loss of power while on the highway or when accelerating from a stop as though it was chocking and ready to stall. The check engine light never came on during this time. I have had to keep a very close eye on the oil level this whole year and there has not been any signs of a leak . But I have had to add a quart or more of oil approximately every 500 miles plus have the regular oil and filter changes. Also installed a new PCV valve. I have put 11,500 miles on the vehicle in one year. Now one year later, I couldn't get the car to accelerate to highway speeds and yet no check engine light comes on. I took the car to another KIA dealer to have it diagnosed. The codes were showing misfires on multiple cylinders. And their diagnosis is that the catalytic converter and gaskets and O2 sensor need replaced plus the spark plugs need replaced because they are burnt. Also the fuel system needs serviced due to excessive carbon build up. I have researched the recalls on the 2014 Kia Soul and see that there is a the federal safety agency campaign:19V120000 that addresses this same issue but somehow my VIN is not included. I am not able to have these repairs made (nearly $4000) and this car is just an accident waiting to happen. Why is my VIN not included in this known issue that already has a recall associated with my make and model?

Filed Apr 19, 2022 · Transmission · IL

Vehicle's engine failed months after a recall was performed on it in October 2021 to "protect the engine from damage" while failing to reason why this was necessary. Upon my vehicle breaking down on April 1st, 2022, I had it taken to a repair shop that performed about $2,000 worth of work on the vehicle, not knowing that KIA had a known defect for code P1326 which was that the engine was defective and not that it was just a misfire as it is coded. My engine is similar to those of vehicles involved in class-actions and other NTHSA complaints around the same model year, THETA II engine, with similar problems with oil consumption issues and it failed at 99,800 miles. When I asked dealerships about the oil consumption earlier on in ownership, I was told it was when the oil was low, but not low enough to trigger a warning lamp. This is the same noise heard now when the engine runs. An increasing "ticking" as the engine increases in speed. The vehicle is available for inspection at KIA of Schaumburg who also advised me of the defects of this engine when they were able to receive it. Our safety was put at risk by the engine suddenly dropping speed abruptly without warning on busy roads and by inadequately warning of a defective engine. The problem has been reproduced successfully by both a KIA dealership and an independent shop, AAA of Skokie. It has been inspected by the manufacturer's representative. The warning lamps first appeared right after the vehicle lost power and went into "protection mode" and sharply dropped speed along a busy corridor. The vehicle failed a second time a day after receiving it from AAA Car Care Skokie from their initial work when turning onto a busy roadway, almost leading to a collision, with nowhere to immediately pull over. The vehicle's computer failed to immediately identify the misfiring until three separate turnovers and trips occurred.

Filed Apr 14, 2022 · Engine · 96,000 miles · MA

The contact owns a 2014 Kia Soul. The contact stated that the vehicle was consuming oil at an excessive rate. The vehicle was taken to the dealer on multiple occasions, however, the failure persisted. The contact also stated that the vehicle was making an abnormal sound. The check engine warning light was illuminated. The vehicle was taken back to the dealer where it was diagnosed with a misfire. The contact then received a recall notification for the federal safety agency Campaign Number: 20V750000 (Engine) however, the dealer informed her that the parts for the recall repair were not yet available. The manufacturer was notified of the failure and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The vehicle was not repaired. The failure mileage was approximately 96,000. Parts distribution disconnect.

Filed Apr 14, 2022 · Engine · 180,000 miles · CA

The contact owns a 2014 Kia Soul. The vehicle had previously been serviced under the federal safety agency Campaign Number: 19V120000 (Engine, Engine and Engine Cooling) at the dealer; however, the failure recurred with the check engine warning light illuminated. The contact stated that the vehicle was towed back to the dealer and diagnosed with cylinder #1 misfire and a compression level of 150. The dealer performed a fuel treatment and informed the contact that the spark plugs and engine needed to be replaced; however, the engine replacement was not covered under the warranty. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 180,000. The consumer stated the vehicle was taken into the dealer for a recall on the converter. The recall was not covered under warranty due to the vehicle being over 150k mileage.

Filed Apr 2, 2022 · Engine · MD

Complete engine failure at 120,000 miles. Engine will need replaced. Old engine will be sent back for core charge. The car went in for repairs at a local car repair shop. Kia dealership has done all the recalls on vehicle. No warning lights or noise prior to failure. Getting on the interstate and the vehicle started misfiring. Car went into limp mode and had to take the next exit to get to a safe spot to pull over. Got towed to local repair shop. They pulled the heads off and found gray gritty material sitting on the cylinders. There was also metal dust in oil.

Filed Mar 30, 2022 · Engine · IN

I had my car “recall” checked out at a dealership. They preformed a software update but I have had problems ever since. I’ve replace the catalytic converter twice. Had to replace spark plugs after the dealership blew them all and only decided to fix one. I’ve had engine misfires and burning smells and have had those issues fixed multiple times. The car is not safe to drive. They won’t do anything because there’s no active recalls, but I am having these issues continuously. The engines either going to blow up or stall and someone including me is going to get hurt. Kia needs to be help responsible for this. I’ve had regular maintenance and oil changes my entire time owning the car. I shouldn’t be having to replace coil packs, ignition coils, spark plugs and catalytic converters every 4 months. My car is also burning oil like no other.

Filed Dec 16, 2021 · Engine · VA

Vehicle is a 2014 Kia Soul with the 1.6L GDI engine. While traveling at highway speeds the engine began to run rough and the vehicle lost power. The check engine light did not illuminate. We pulled off the highway to a Kia dealership in Greensboro, NC with the engine continuing to run & idle roughly. The dealership replaced the spark plugs & coils believing it was a misfire issue, however the engine continued to run poorly. A compression test showed 30 psi in one cylinder with 130 psi in the others. The engine would require replacement at only 72k miles. The vehicle was maintained per the maintenance schedule, and fluids were kept at the proper level. Without any warning this could have caused an accident on the highway.