2001 Hyundai XG350 Problems: 1 Issues Every Owner Should Know
2001 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated May 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2001 Hyundai XG350 has 1 documented known issues, with 1 rated critical. The most serious is Timing Belt Tensioner Failure (3.5L Sigma V6) ($500-$1,200 repair). Across all issues, repair costs range from $500 to $1,200. DIY maintenance guides at au7o.io.
All 1 Known Issues
On the 2001-2005 Hyundai XG350 3.5L Sigma V6, the 3.5L Sigma V6 engine in the XG350 uses a timing belt with a hydraulic tensioner that can fail, allowing the belt to lose tension. The tensioner bearing can seize or the hydraulic damper can leak, both leading to belt slack and potential timing jump. The Sigma V6 is an interference engine, so a timing belt failure or jump causes catastrophic engine damage. Hyundai recommends timing belt replacement at 60,000-mile intervals, but many XG350 owners defer this service due to cost.
Common Symptoms
- Squealing or chirping from timing cover area
- Engine vibration and rough idle
- Check engine light with timing codes
- Ticking noise from front of engine
- Sudden engine failure if belt jumps or breaks
How to Fix
What Owners Are Using
Parts and tips from 0+ owners who fixed this issue
- UpgradeComplete timing belt kit with water pump for a comprehensive replacement (Gates Timing Belt Kit with Water Pump)
- UpgradeHigh-quality engine oil is critical after timing service (Castrol Edge Full Synthetic Motor Oil)