Even after regular oil changes car requires an additional 4 bottles of oil every 2 weeks. Now the car is jumping and having a misfire.
2019 Kia Optima: misfire or rough idle
6 of the 214 complaints about the 2019 Kia Optima describe misfire or rough idle.
- owner complaints
- 6
- of this car's complaints
- 3%
- recalls
- 0
Is there a fix? 48 service bulletins cover this area of the car. See below
Misfire or rough idle by model year
What owners say
The contact owns a 2019 Kia Optima. The contact stated that while the vehicle was parked, there was sputtering sound coming from the engine compartment, with the check engine warning light illuminated. The contact stated that while driving at an undisclosed speed, the vehicle was running rough. The vehicle was taken to the independent mechanic where it was diagnosed with a cylinder misfire and burned spark plug, and that there was oil inside the cylinder and on the spark plug. The contact was informed that the parts needed to be replaced. The vehicle was repaired but the failure reoccurred months later. The vehicle was taken back to the same independent mechanic where it was diagnosed with oil consumption, oil intrusion into the firing chamber, and that another spark plug needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 112,000.
The contact owns a 2019 Kia Optima. The contact stated that the catalytic converter was previously replaced. The contact stated that while driving at 60 MPH, two weeks later, the check engine warning light illuminated, and the vehicle started misfiring. The contact drove to the residence. The vehicle was towed to an independent mechanic, where it was diagnosed and determined that the engine needed to be replaced. The mechanic related the failure to an unknown engine recall, and the contact was referred to the dealer for assistance. The vehicle was taken to the nearby dealer, where it was diagnosed with engine damage. The dealer acknowledged the unknown engine recall, but the engine was not replaced. The manufacturer was notified of the failure and informed the contact that the part of the engine that was damaged was not covered. The vehicle was not repaired. The failure mileage was approximately 179,000.
•Rapid oil loss — topped off every 1–2 weeks •Engine misfires, check engine light •Spark plug fouling and performance loss •Repeated advice to “just refill oil” and “wait for failure” •Unsafe to drive, especially as a working single mom
Oil is getting into cylinders causing spark plugs to misfire. Very high oil consumption so I have to put oil in it every other day in between oil changes. I’ve been to Kia Service department several times in the past 2 months.
2019 Optima EX excessive oil consumption. Oil changed every 3000 miles, but is always empty within 1000miles. Car has 101,000 miles. Took to Kia dealership due to loss of power on acceleration and stalling and excessive oil consumption, they said I have multiple misfires on cylinder 1, excessive sludge buildup under cap and again no oil present. I was advised the engine needed replaced and that somehow this is a me problem and not a Kia problem. Spoke with Kia support and because it’s 1,000 miles over warranty they will not do anything even though they are aware of excessive oil consumption issue in these motors
Service bulletins that may apply
- Voluntary emissions service campaign: owner notification (SC367)
- SC367_POC: proof of correction card
- SC367_STKR: voluntary emissions service campaign completion label/sticker
- Voluntary emissions service campaign
- Voluntary emissions service campaign: dealer principal memo (SC367)
- Voluntary emissions service campaign: question and answer (SC367) –
- Voluntary emissions service campaign: theta II 2.4L GDI emissions: ECM logic improvement (SC340 revision 5)
- Voluntary emissions service campaign: owner notification (SC340 flight 103 / jf)
Related recalls
No recalls on record for this model year.
Questions about the 2019 Kia Optima misfire
Is misfire or rough idle a common problem on the 2019 Kia Optima?
6 of 214 owner complaints about the 2019 Kia Optima (3%) mention misfire or rough idle. The model year with the most reports is 2016.
Is there a recall or service bulletin for this on the 2019 Kia Optima?
There are 0 recalls and 48 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2019 Kia Optima
Oil consumption 34Check engine light 31Engine failure 22Knocking 18Stalling 17Collision warning 15Loss of power 10ABS 7Fire or smoke 7Fuel pump 7No deployment 6Hesitation 5Won't shift 5
VIN decoder
See the problems and recalls for an exact car
Buying a used 2019 Kia Optima?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history