Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2010 Kia Forte owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2010 Kia Forte with a five-speed transmission. The contact received notifications for NHTSA Campaign Number: 18V363000(Air Bags) and NHTSA Campaign Number: 23V652000(Service Brakes, Hydraulics), as well as other manufacturer recalls. The contact made an appointment at a dealer and had the vehicle serviced for the recalls. The contact had to make a second appointment as not all parts were available for the initial appointment. After the contact's second appointment, all recall services were performed, and she was informed that a five-point inspection was also performed on the vehicle. Upon leaving the dealer, the contact stated that while driving at 65 MPH, the vehicle's clutch failed without warning. Due to the failure, the contact was unable to downshift the vehicle and was forced to use her emergency brake to stop the vehicle. …
The contact owns a 2010 Kia Forte. The contact stated while driving and while at a complete stop, she noticed an abnormal burning odor. There was no warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed that the third brake light assembly had melted. The mechanic replaced the third brake light assembly; however, the burning odor persisted. The vehicle was then taken to the dealer, where the valve cover gasket was replaced; however, the failure persisted. Additionally, the contact stated while starting the vehicle, the vehicle made abnormal rattling sounds. The dealer diagnosed that the belt tensioner needed to be replaced. The part was replaced by AAA. The contact stated that the rattling sounds were reduced; however, the burning odor persisted. The vehicle was not repaired. The contact stated that she was concerned for her safety. …
The contact owns a 2010 Kia Forte. The contact stated while driving at approximately 45 MPH, the vehicle stalled. On two other occasions, the vehicle shut off and the driver was able to steer the vehicle off the roadway. There were no warning lights illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed that there was no oil in the engine. The independent mechanic informed the contact to check the oil level while refueling. The vehicle was consuming an excessive amount of engine oil. There was an abnormal rattling sound detected. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 130,000.
The contact owns a 2010 Kia Forte. The contact stated that while driving or while idling, he heard a loud knocking sound coming from the hood of the vehicle. No warning lights were illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the rod bearings were faulty. The dealer was not notified of the failure. The vehicle was not repaired. The contact was concerned for his safety while operating the vehicle. The manufacturer was notified of the failure and the contact was informed that the VIN was not included in a recall. The failure mileage was approximately 70,000.
The contact owns a 2010 Kia Forte. The contact stated while driving 30 MPH, there was an abnormal sound coming from the hood of the vehicle. The contact pulled over on the side of the road. There were no warning lights illuminated. The vehicle was driven to the local dealer where it was diagnosed and determined that the rod bearing was damaged and needed to be replaced. The vehicle was not repaired due to the warranty being expired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 110,000.
The contact owns a 2010 Kia Forte. The contact stated while driving 10 mph and approaching a stop sign, the vehicle lost motive power. The check engine and battery warning lights were illuminated. The vehicle was restarted without further failure. The vehicle was not diagnosed nor repaired. The manufacturer was not notified of the failure. The failure mileage 111,407.
In March 2023, my 2010 kia forte ex began to make a ticking noise, similar to the noise it had made before its first engine had failed. I had just had my car inspected the week prior and had my oil changed. I took my car back to the mechanic, where they confirmed there was an issue with my "new" engine. The engine was "knocking." I took my kia to the dealership where I had gotten the first engine replaced to see if my warranty still covered the new engine as it was not even 3 years old, but was told it was not under warranty. I took my car to another mechanic to get a second opinion after being quoted over $3000 for a new engine. The mechanic said that there were metal shavings in my oil, which was only a week or two old at that time. He said the issue was likely the rod baring's. …
On January 20, th 2024 my Connecting (Rod Bearings In cylinder # 1 failed ! My 2010 Kia Forte Started making a loud rattling noise from inside the Engine! I immediately parked my car. On February 13th, Kia Of Carson ca. Excepted my Kia for service check ! They tried to charge me $235.00 (see service check receipt! Then they later retracted the bill ! Today is February 25th and my Vehicle in still at the dealership unrepaired ! My complaint is that the Kia Dealership and cooperation has tried to Mislead me in every aspect of the rules and regulations of a recall , in order to not repair this (significant Vehical Safety issue! They even tried to get me to pick up the vehicle sand drive it away in the condition it's in ! My insurance company said they will not be liable if something happens to me while operating this vehicle while it's under Recall ! …
Randomly the car refused to accelerate, rpms would not go past 3k. It happened it different time points of a drive. There was never any check engine light. Mechanic drove the vehicle and ran a check on it and said with out a warning light there isn't much I can do. Suggested replace crank shaft sensor. There was no change to the point the entire car died while driving up hill with no shoulder and a very large truck behind. My children would be dead right now if there had been another vehicle in the lane next to me I was able to barely to get the cat into. The car started back up after 30 mins. Was looked at again, informed it could have something to do with the engine tick, still no warning lights. The car stalls, jerks like a misfire and had refused to keep a stable speed while on the interstate
There is an ongoing issue with the MAP sensor that triggers a check engine light as well as the RPMS to fluctuate. This can happen when disconnecting the battery and/or replacing the MAP sensor. I replaced the MAP sensor and still get this ongoing issue. This is a safety concern because due to the RPMs constantly fluctuating, the car jolts forward when driving which could possibly result to the car hitting another vehicle in front of it. But the only way to get it to stop / get the check engine light to turn off, is to drive it for x amount of miles until it fixes itself. This problem has been inspected by Kia themselves and they did not give any information to me about the issue. This issue seems to happen any time I get the vehicle serviced.
NHTSA investigations
Loss of Motive Power
The National Highway Traffic Safety Administration (NHTSA) received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles spanning Model Years (MY) 2005-2021.
Engine complaints in other Forte years
Frequently asked questions
How common are engine problems on the 2010 Kia Forte?
NHTSA has 81 complaints about the engine & cooling of the 2010 Kia Forte, 37% of the model year's 221 complaints. The component named most often is engine (2 mentions).
Is there a recall for 2010 Kia Forte engine problems?
No. NHTSA lists no engine & cooling recall for the 2010 Kia Forte, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2010 Kia Forte engine problems start?
Half of the complaints with a recorded mileage happened before about 95,000 miles, and 16% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 3 fires and 1 injury to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.