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EnginePart report

2003 Hyundai Sonata Engine Problems

Complaints
3about this part
Share
2%of 199 total for the year
Median mileage
131,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the engine of the 2003 Hyundai Sonata, 2% of the 199 complaints for this model year. Where a mileage was given, the median is 131,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

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

“The contact owns a 2003 Hyundai Sonata. The contact stated that while inspecting the vehicle, the front wheels appeared to be angled inward. The vehicle was taken to an independent mechanic, who discovered that the front passenger side of the engine cradle was rusted. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 131,000.”

NHTSA complaint #10618738, filed 2014-08, 131,000 miles

“The contact owns a 2003 Hyundai Sonata. The contact stated that while driving approximately 25 MPH, when the vehicle loss motive power and stalled. The contact pushed the vehicle to the side of the roadway. The contact had the vehicle towed to a certified mechanic who diagnosed that crankshaft position sensor and the crankshaft needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 45,922. The VIN was not available.”

NHTSA complaint #11396614, filed 2021-02, 45,922 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2025212%
202436%
20232832%
20222526%
20213425%
20203218%
20198754%
201821257%
201738550%
201645262%
201562955%
201430340%
201373939%
201256736%
201196829%
2010298%
20095612%
20084811%
2007416%
2006444%
200564%
200452%
200332%
200252%
200110%

Other parts of the 2003 Hyundai Sonata

Air bags
43 complaints
Body and structure
38 complaints
Electrical system
19 complaints
Fuel system
18 complaints
Brakes
15 complaints
Suspension
15 complaints
Engine cooling
14 complaints
Latches, locks and linkages
13 complaints
Transmission and drivetrain
10 complaints
Wheels
10 complaints
Steering
9 complaints
Seat belts
7 complaints

← All problems reported for the 2003 Hyundai Sonata

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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