2003 Hyundai Sonata engine and engine cooling problems
14 owner complaints filed with NHTSA name the engine and engine cooling on the 2003 Hyundai Sonata — 7% of all complaints for this model year.
What owners report
“Tl*the contact owns a 2003 hyundai sonata gls. The contact stated while driving approximately 65 mph the vehicle stalled, but the vehicle continued to surge forward. The vehicle was towed to a dealer who advised her that they would reprogram the computers. The vehicle was not repaired. The failure…”
filed Jun 15, 2011
“2003 hyundai sonata egr issues (check engine light 401)- I've been having persistent issues with my vehicle's egr system for over a year now. I have replaced the entire egr system including the egr valve, solenoid, etc. I have also had to replace other parts that have failed due to the…”
filed Feb 21, 2011
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
23-EM-005H · Service Bulletin/Repair Instructions · issued Oct 13, 2023Follow the guidelines outlined in this bulletin to inspect and clean or replace certain components of the engine intake system accordingly during engine short block or sub-assembly replacement.
22-EM-010H · Service Bulletin/Repair Instructions · issued Jul 28, 2022
Engine and Engine Cooling problems in other Sonata years
| Year | Reports | Share |
|---|---|---|
| 2023 Sonata | 2 | 2% |
| 2021 Sonata | 1 | 1% |
| 2019 Sonata | 7 | 4% |
| 2018 Sonata | 14 | 4% |
| 2017 Sonata | 18 | 2% |
| 2016 Sonata | 16 | 2% |
| 2015 Sonata | 21 | 2% |
| 2014 Sonata | 21 | 3% |
| 2013 Sonata | 40 | 2% |
| 2012 Sonata | 11 | 1% |
| 2011 Sonata | 45 | 1% |
| 2009 Sonata | 6 | 1% |
Other reported problem areas on the 2003 Hyundai Sonata
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.