2008 KIA OPTIMA EXV6, SINCE NEW, WHEN LIGHTLY BRAKING WHILE DECELERATING FROM 40 MPH, THE CAR DOWNSHIFTS AND HAS AN ACCELERATION SURGE AT AROUND 25 MPH. WHEN COMPLAINING TO THE DEALER, THEY SAID THE KIA'S WERE MADE THAT WAY. THIS IS AN UNSAFE CONDITION THAT CAN CAUSE A REAR END COLLISION. THE CAR SHOULD HAVE NORMAL ENGINE BRAKING THAT ALLOWS FOR CONTINUOUS DECELERATION AS LONG AS THE ACCELERATOR P…
2008 Kia Optima engine problems
severe 14 complaints filed with NHTSA · avg repair $3,100
Complaints
14
Recalls
0
Crashes
1
Avg fix
$3,100
What owners are reporting 2 most recent
TL* THE CONTACT OWNS A 2008 KIA OPTIMA. THE CONTACT STATED WHILE TRAVELING APPROXIMATELY 35 MPH, SMOKE EMITTED FROM UNDER THE HOOD AND THE VEHICLE STALLED. THE CONTACT ALSO MENTIONED THAT THE VEHICLE FAILED TO RESTART. THE FAILURE WAS NOT DIAGNOSED NOR WAS THE VEHICLE REPAIRED. THE MANUFACTURER WAS NOT CONTACTED ABOUT THE FAILURE. THE FAILURE MILEAGE WAS 96,000.
Common questions
How serious is the engine problem on the 2008 Kia Optima?
It's a meaningful issue. 14 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
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.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. 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.
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