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Hyundai · Known Issues

2001 Hyundai XG350 Problems: 1 Known Issue

2001 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026

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Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2001 Hyundai XG350 has 1 documented issue, with 1 rated critical. The most serious is Timing Belt Tensioner Failure (3.5L Sigma V6) ($500-$1,200 repair). Across all issues with published estimates, repair costs range from $500 to $1,200. DIY maintenance guides at au7o.io.

In This Article

  • XG350 Engine1
  • Recalls3
  • FAQ
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In This Article

  • Engine1
  • Recalls3
  • FAQ

All 1 Known Issue

Filter:
ALL YEARS20052004200320022001

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.

This issue also affects: Hyundai Accent, Hyundai Azera, Hyundai Elantra

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 you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Gates PowerGrip timing-belt component kit with water pump
    OEMGates TCKWP323

    Confirm VIN/engine and separately ide

    PartsGeek

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Typical repair cost:$500 - $1,200

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
Medium Confidence
NHTSA Recalls3 recalls

SUSPENSION

HYUNDAI IS RECALLING 188,282 MY 2001-2004 SONATA AND MY 2001-2004 XG300 AND XG350 VEHICLES ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA, WISCONSIN, AND THE DISTRICT OF COLUMBIA. ROAD SALT APPLIED IN THESE JURISDICTIONS DURING THE WINTER MONTHS MAY RESULT IN PROGRESSIVE, INTERNAL CORROSION OF THE FRONT SUB-FRAME ON THE VEHICLES, AND MAY RESULT IN THINNING OR PERFORATION OF THE SUB-FRAME STEEL. THE CORROSION IS FREQUENTLY VISIBLE AND OFTEN DISCOVERED DURING INSPECTION OR ROUTINE MAINTENANCE, AND OWNERS MAY ALSO HEAR NOISES OR NOTICE TIRE MISALIGNMENT AND STEERING PULL. IF THESE SIGNALS ARE UNDETECTED OR UNHEEDED, THE CORROSION MAY PROGRESS AND THE FORWARD MOUNTING OF THE LOWER CONTROL ARM MAY DETACH FROM THE SUB-FRAME.

Campaign #09V12400016/04/2009

FUEL SYSTEM, GASOLINE:STORAGE

CERTAIN PASSENGER VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 301, "FUEL SYSTEM INTEGRITY" A VALVE ON THE FUEL TANK ASSEMBLY MAY NOT CLOSE PROPERLY. IF A VEHICLE ROLLS OVER AND THE FUEL TANK ASSEMBLY VALVE IS NOT PROPERLY CLOSED, FUEL SPILLAGE MAY OCCUR.

Campaign #04V36900026/07/2004
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Other Hyundai Models

Hyundai Elantra42Hyundai Sonata31Hyundai Tucson23Hyundai Veloster22Hyundai Palisade19Hyundai Santa Cruz17

Frequently Asked Questions

What are the most common Hyundai XG350 problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2001 Hyundai XG350 has 1 documented issue. The documented issue is: Timing Belt Tensioner Failure (3.5L Sigma V6). Of these, 1 is rated critical and should be addressed promptly.

Is the Hyundai XG350 reliable?

The 2001 Hyundai XG350 has 1 known issue compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: Timing Belt Tensioner Failure (3.5L Sigma V6). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Hyundai XG350 problems?

Repair costs for known Hyundai XG350 issues range from $500 to $1,200, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Timing Belt Tensioner Failure (3.5L Sigma V6), typically costs $500-$1,200 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2001-2005 Hyundai XG350 Timing Belt Tensioner Failure (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 interfe… Repairs typically run $500-$1,200. Severity: high.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data compiled from NHTSA recalls, manufacturer TSBs, automotive forums, and AI-assisted research. No aggregated owner-report counts available for this vehicle yet.

FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY

SOME PASSENGER VEHICLES CONTAIN A FUEL TANK ASSEMBLY VALVE THAT MAY NOT CLOSE PROPERLY. IF A VEHICLE WITH A FUEL TANK ASSEMBLY VALVE THAT IS NOT PROPERLY CLOSED WERE TO ROLL OVER, FUEL SPILLAGE MAY OCCUR.

Campaign #04V17800009/04/2004

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