My vehicle will suddenly drop in speed regardless of increasing gas, by adding pressure to the gas pedal. It is also making an odd noise from the engine. I took it to the mechanic who stated that they heard the noise but it was beyond their scope and I should take it to the dealer. I called the service department and told them the problem and also mentioned the lifetime engine warranty that Hyunda…
2013 hyundai Sonata engine problems
severe 532 complaints filed with NHTSA · avg repair $3,100
Complaints
532
Recalls
0
Crashes
5
Avg fix
$3,100
What owners are reporting 4 most recent
Having to add 1-2 quarts of oil per month and engine knock noise has started and been louder when oil is low.
WHILE CAR WAS ACCELERATING ON THE INTERSTATE A LOUD KNOCKING NOISE BEGAN. THE ENGINE NOISE CONTINUED TO GROW. I STOPPED MOMENTARILY FOR AN APPOINTMENT PRAYING THE CAR WOULD START. WHEN I CAME BACK OUT IT DID RESTART BUT THE ENGINE NOISE WAS WORSE, I CALLED THE LOCAL HYUNDAI DEALERSHIP & DESCRIBED THE SITUATION. I INFORMED THEM I WOULD BE DRIVING THE CAR TO THEM. NOT ONCE DID THEY MENTION ENGI…
The contact owns a 2013 Hyundai Sonata. The contact stated that while operating the vehicle there was a knocking sound coming from the engine compartment. The vehicle was towed to the local dealer who diagnosed that the engine was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 53,0…
Common questions
How serious is the engine problem on the 2013 hyundai Sonata?
It's a meaningful issue. 532 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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