AtWhatMileage
Engine · 56 owner reports

Other engine problem on the 2010 Kia Forte

1 crash 3 fires 4 of the 56 reports for this failure mention a crash, a fire, an injury or a death. Those are the owner's words on the complaint form, not a verified finding, and one report can mention more than one.

Reports of this failure 56
With an odometer reading 34
Reports per 1,000 built 1.7 per 1,000
Filed below 36,000 miles 18%
Mention a crash, fire or injury 4
Typical repair $300–$4,000
What it means when it happens High
Rank among this year's problems 1st

When other engine problem gets reported

Owners of the 2010 Kia Forte report other engine problem at a median of 100,000 miles. A quarter of the reports come in before 67,500 miles and a quarter after 135,000 miles, from 34 reports that carried an odometer reading.

A part like this is normally expected to survive 95,000 miles. It is the 1st most-reported problem on this model year.

The mileage distribution

The reported range runs from 5,000 miles at the tenth percentile to 177,500 miles at the ninetieth, a spread of 172,950 miles across the middle 80% of reports.

A spread this wide points at use rather than design. Towing, climate, service history and city mileage all move a failure like this, so the median is a weak guide to any individual car.

18% of the dated reports were filed under 36,000 miles.

The whole distribution

Percentiles of the 34 odometer readings owners gave.
10th25thMedian 75th90th
4,050 miles 66,682 miles 100,504 miles 135,250 miles 177,000 miles

Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.

What a percentile can and cannot tell you here

These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.

What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.

Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.

What happens, and what it costs

Of these reports, 1 a crash and 3 a fire are mentioned. Owners write their own complaints and the agency does not verify them, so read this as what the reports say happened rather than as a confirmed count.

Putting it right typically runs $300–$4,000 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.

The same failure on other years

The same failure is reported on 14 model years of this car. It shows up earliest on the 2022, at a median of 20,000 miles, and latest on the 2011 at 115,000 miles.

By volume the 2014 carries the most reports, with 129; the 2010 has 56. A mode that appears across most years of a model is usually a design choice rather than a bad batch.

If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.

What owners wrote

Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.

Tl* the contact owns a 2010 kia forte. While driving at approximately 35mph, the check engine warning light illuminated. The steering wheel then locked and the vehicle stalled. The contact was able to restart the vehicle and the vehicle resumed normal operation. The dealer did a test drive but was unable to duplicate the failure. A diagnostic test was performed but did not produce any failure codes. There were no repairs. The failure and current mileage was 1,246.

1,246 miles NHTSA complaint 803740 filed 2010-08-02

Second incident of stalling while operating a 2010 kia forte ex w/ auto tran and the "fuel economy" package. In both instances I had come to a stop -- the first time (about 2 mos. Ago) was upon executing a hard stop, but today I had slowed gradually and then stopped for a red light. Both times, the dashboard lights and radio remained on but the engine simply cut out. Car was in "drive" and in both instances was traveling at approximately 35 MPH prior to stopping. The steering did not lock. I was able to restart the car without difficulty after putting it in "park." I was unable to recreate the problem once I had a chance to safely try doing so. The first time it happened, there were only about 5,000 miles on the car. I called the dealership and they said that I could bring the car in but that if they couldn't recreate the problem, they couldn't diagnose/fix it. They did not seem to have any idea what could have caused the vehicle to stall. Today's incident occurred after the dealership had closed but I will call them in the morning to report it. This time I intend to take the vehicle in for diagnostic testing as I have a long…

11,600 miles NHTSA complaint 807650 filed 2010-08-17

The vehicle will sporadically jerk hard when changing gears. I have only ever experienced this same feeling when a transmission was going out. The vehicle was purchased brand new on 06/24/11 from a dealers lot, the vehicle had been used as a demo. The vehicle hard jerked when changing gears, four separate times between 06/25/11 and 07/05/11. Per this website: http://www.kia-forums.com/kia-forte-cerato-td-koup-discussion/55002-sx-2-4l-w-auto-trans-2.html I am not the only person with this problem. *tr

1,500 miles NHTSA complaint 883265 filed 2011-10-03

Also reported on the 2010 Kia Forte

Other wheel or tire problem

19 reports median 47k

Tire pressure monitor failure

15 reports median 61k

Other powertrain problem

15 reports median 26k

Cruise control failure

12 reports median 31k

Other brake problem

11 reports median 66k

How far this goes

Complaints are voluntary, so 56 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.

Questions this page answers

At what mileage does other engine problem happen on the 2010 Kia Forte?

Across 34 owner reports that included an odometer reading, half were filed by 100,000 miles. A quarter were filed before 67,500 miles and a quarter after 135,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.

How common is other engine problem on the 2010 Kia Forte?

56 reports have been filed with NHTSA, about 1.7 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.

What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars

Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed