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Fuel systemPart report

2014 Kia Optima Fuel system Problems

Complaints
48about this part
Share
8%of 591 total for the year
Median mileage
92,500miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 48 complaints about the fuel system of the 2014 Kia Optima, 8% of the 591 complaints for this model year. Where a mileage was given, the median is 92,500 miles. 3 of these say a crash was involved and 10 a fire, according to the filers. 2 recall campaigns on record are filed under a similar system.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I took my car in after smelling fuel and they said there was a tear in my fuel line and it needed to be replaced. My car was included in the recall but Kia would not pay for the repairs because when they previously reviewed for recall issues they said there was no issues found. I attempted to contact Kia and they did not get back to me.”

NHTSA complaint #11282663, filed 2019-11, 85,000 miles

“I have a 2014 Kia Optima that I purchased 3 years ago. My car lost all power on the highway and the motor is making a knocking noise I've taken it to my Kia dealer who always does my oil changes and they are saying that I need a new motor but no recalls are falling u see my VIN in their paperwork. …”

NHTSA complaint #11291664, filed 2019-12, 80,000 miles

“I was in a parking structure, stopped at a stop sign. I continued a few feet to my designated parking stall and when I turned the wheel the car accelerated at what felt and sounded like full throttle on it's own. The surge of the vehicle forced the car to crash into a concrete wall causing extensive damage to the vehicle and bodily injury to myself. The vehicle is only a few months old. This car has some very serious safety issues. Someone could have been killed. Now I am terrified to ever drive it again.”

NHTSA complaint #10683947, filed 2015-02, 12,000 miles

“My car (2014 Kia Optima) started having a faint gas smell about two days ago, I thought the gas smell was because I had gotten gas and some was on my shoe. I found out today that my direct injection fuel pump on the engine is the problem. The guy at the shop said the car could have blown up at anytime, and that I was blessed. I called the Kia dealership because the engine locked up on me in september of 2017. The dealership told me they replaced a part, but is now telling me they replaced the entire engine. The problem that the car is having now is not under a recall. …”

NHTSA complaint #11144931, filed 2018-11, 119,377 miles

“I have a Kia Optima 2014 Kia Optima love my car. There's only one bad thing I go do my recall on march 28 2019 it says everything had passed but in reality. The service that they did was careless 9 months later my car is bad motor. Has 130,000 that's what 20,000 dollar is worth wow. They did my oil Kia change they put the wrong oil 5-30 really that for Kia turbo and Kia Optima 5-20 now my car is in a mechanic. I need my car fix , I did my recall thought it was for a cause but I gues it wasn't . I need my car fix ! My car stop in the middle iff the 57 south freeway .. Kia Optima in pomona ca”

NHTSA complaint #11289240, filed 2019-12, 130,000 miles

Related recalls

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2020139%
2019188%
2018136%
2017229%
2016628%
2015566%
2014488%
20131239%
2012546%
2011264%
201011%
200911%
200853%
200732%
200696%
2005107%
2004104%
2003129%
200266%
200132%

Other parts of the 2014 Kia Optima

Engine
284 complaints
Steering
97 complaints
Other or unknown
90 complaints
Electrical system
60 complaints
Body and structure
48 complaints
Brakes
42 complaints
Vehicle speed control
21 complaints
Transmission and drivetrain
20 complaints
Exterior lighting
18 complaints
Air bags
16 complaints
Engine cooling
16 complaints
Visibility (wipers, defrost, mirrors)
12 complaints

← All problems reported for the 2014 Kia Optima

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology