PITSTOP - ENGINE COMPONENT RE-USE GUIDELINES - In general, parts and components removed during engine repairs should be considered serviceable, and should be thoroughly cleaned and transferred to the new engine.
full bulletin at NHTSA ↗2009 Kia Optima engine problems
moderate 7 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Complaints
7
Recalls
0
Avg fix
$3,100
When does it fail?
Of the 7 engine complaints filed for the 2009 Kia Optima, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA engine complaint has been filed on this vehicle in over 15 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
KIA: THERE IS A PROCEDURE TO RESET THE ELECTRONIC THROTTLE CONTROL VALUE.
full bulletin at NHTSA ↗KIA: ECM UPGRADE FOR IMPROVED SHIFT QUALITY-EQUIPPED WITH 2.4L ENGINE AND A/T. PROVIDES THE PROCEDURE TO UPGRADE THE ENGINE CONTROL MODULE (ECU) OF SOME VEHICLES WITH 2.4L ENGINES. COMPLAINTS OF POOR SHIFT QUALITY/PATTERN DURING UP SHIFTS AND DOWN SHIFTS; THIS UPGRADED LOGIC WILL REDUCE THOSE COMPLAINTS.
full bulletin at NHTSA ↗KIA: ECM UPGRADE WITH TP SENSOR REPLACEMENT-MIL ON WITH DTC P2135/P0638. INFORMATION RELATED TO ECM SOFTWARE AND TP SENSOR UPGRADE ON SOME VEHICLES WITH 2.7L ENGINES WHICH MAY EXPERIENCE A MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED WITH THE ELECTRONIC THROTTLE CONTROL (ETC) SYSTEM RELATED DTC P2135 OR P0638 OR P2A00 OR P2A03.
full bulletin at NHTSA ↗KIA MOTORS: RELATING TO OIL CONTROL VALVE (OCV) USED IN CONSTANT VARIABLE VALVE TIMING (CVVT). IF AT ANY TIME OCV IS SUSPECTED AS A CAUSE OF ROUGH IDLING, POOR ACCELERTION, CAMSHAFT TIMING MISALIGNMENT RELATED TROUBLE CODES, MISFIRE RELATED TROUBLE CODES ETC., ON THE VEHICLE EQUIPPED WITH THE CVVT SYSTEM, BE SURE TO PERFORM THE OCV INSPECTION PROCEDURE BELOW BEFORE REPLACEMENT. NO MODEL YEARS SPECIFIED.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 2 most recent
This car was purchased in march 2010 and had only 2400 miles on it when the oil pump failed. It took citrus motors in ontario, ca almost two weeks to acquire the part and replace it. Updated 01/20/11 *bf
The contact owns a 2009 Kia Optima. The contact stated while driving at approximately 35 MPH, the vehicle was making an abnormal knocking noise and then stalled. The contact stated that the battery and check engine warning lights were illuminated. The contact was able to restart the vehicle. The contact drove the vehicle to an independent mechanic and the vehicle stalled several times while…
Had engine trouble with your 2009 Kia Optima?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2009 Kia Optima?
It's a documented issue but not catastrophic. 7 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Based on the 7 complaints filed, engine issues most often appear around 85,882 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2009/Kia/Optima.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.