2015 Kia Forte · symptom sheet
Check engine light or misfire
- 34owner reports
- 101,000median miles
- 0involved a crash
Newest report Jul 6, 2026 · checked Oct 2, 2026
182 of the 258 complaints on this car are about the engine. 34 of those describe misfire.
Tick what matches of 34 reports
Misfire on other Forte years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2016, 2018, 2019.
What this problem usually is
These reports start with the check engine light. Many describe the engine running rough or shaking at idle, a P0300-series code, or a catalytic converter code. A worrying number say the light was flashing. Owners often list ignition coils or spark plugs already replaced, and the light coming back afterward.
What got replaced
Owners who name the part that was replaced mention the spark plugs (4 reports), the sensor (4 reports) and the ignition coils (3 reports).
Recalls and investigations
One recall on the engine covers the 2015 model year. A recall on the same system isn't always the same failure, so read the defect text.
An engine compartment fire can occur while driving.
The recall on the 2015 Kia Forte, with the owner complaints on each recalled system
NHTSA investigations into the engine on the Forte
Loss of motive power. Closed dec 12, 2023.
Engine fires. Closed feb 5, 2024, led to recall 23V-877.
When it happens
The middle half of failures fell between 85,000 and 136,636 miles, from the 23 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 4 service bulletins or notices for the 2015 Kia Forte that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
PITSTOP INTERMITTENT LACK OF POWER OR HESITATION UPON ACCELERATION - RESTRICTED FUEL LINE - Customers may experience an intermittent lack of power or hesitation upon acceleration. The malfunction indicator lamp may not illuminate or DTC P0087 may be stored (history).
PITSTOP: MANUAL EVAPORATIVE EMISSIONS TEST FOR HARD TO FIND/SMALL LEAKS If the malfunction indicator lamp (MIL) is illuminated with DTC(s) P0442, P0455, P0456, or P0457 (Evaporative Emissions System-Leak detected) and the evaporative (EVAP) leak self-test resulted in NTF, a manual EVAP test is recommended.
KIA: CRANKSHAFT POSITION SENSOR (CKP) VARIATION HAS NOT LEARNED CAUSING MISFIRE OF ENGINE AND MALFUNCTION INDICATOR LIGHT (MIL) TO COME IN DASH. MODEL ALL. NO YEARS LISTED. *PE
6 SPD A/T SOLENOID REPLACEMENT ? DTC P0741 This bulletin provides information relating to the replacement of the Damper Clutch (D/C) Solenoid on 6-speed automatic transaxles with DTC P0741 (active or history), instead of replacing the transaxle.
What owners wrote
“I was driving and itâs like the engine just gave out, I waited for a while started it back up and was able to make it home safely.Iâm not sure whatâs wrong with the engine but there are no lights on the dash on (no check engine)”
Filed May 21, 2025
“The engine has lower engine knocking. It has a rod knocking very loud. It could throw a rod through engine at any time, cause the vehicle to wreck and catch on fire. Yes, it was confirmed that it had a rod knocking in engine. yes, An ASE Certified mechanic. No check engine light came on. It just started knocking real bad and lost power.They appeared as I was driving down the road.”
Filed Jul 20, 2021
Should you keep driving it?
This page can't tell you that. 0 of 34 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Which lights mean pull over now? Warning lights by color and urgency
Other problems on this car
- Engine failure, knocking or rod bearing 73 reports
- Engine stalls or loses power while driving 53 reports