Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

1998 Toyota Sienna Reliability ReportCommon Problems, Repair Costs & Expert Verdict

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88/ 100

AutoScore

LOW RISK

Grade: A-

A remarkably durable and practical minivan that continues to offer strong value, provided its age-related wear is addressed proactively.

Full system breakdown + what I would do

Quick Facts · 1998 Toyota Sienna

  • Has 3 NHTSA recalls on record — the most notable involves the structure.
  • Scores roughly in line with adjacent Toyota Sienna years — consistency that often signals a stable platform generation.
  • The system most likely to surface first: power sliding door mechanism (moderate severity).
Quick Answers

The 1998 Toyota Sienna at a glance

Is the 1998 Toyota Sienna reliable?
Autojunket rates the 1998 Toyota Sienna 88/100 (grade A-), categorized as low risk. A remarkably durable and practical minivan that continues to offer strong value, provided its age-related wear is addressed proactively.
Should I buy a used 1998 Toyota Sienna?
Autojunket recommends reading the full reliability report before buying a 1998 Toyota Sienna. If you're in the market for an incredibly reliable, no-frills family hauler on a budget, the 1998 Toyota Sienna is an outstanding choice. Its legendary powertrain and robust construction mean it can continue to serve faithfully for many years and miles, making it one of the smartest used vehicle purchases in its class.
Which Toyota Sienna years are the most reliable?
Best model years to buy: 1998-2003 (First Generation Sienna). Years to avoid: None specifically for this generation, but always avoid examples with neglected maintenance history..
What are the most common problems with the 1998 Toyota Sienna?
The top failure points on the 1998 Toyota Sienna are Power Sliding Door Mechanism (typically around 80,000-120,000 miles), Exhaust System (typically around 100,000-150,000+ miles), Front Suspension Components (typically around 80,000-150,000 miles). Autojunket's full report includes repair-cost ranges and inspection checklists for each.
At what mileage do problems start on the 1998 Toyota Sienna?
The first major mileage danger zone for the 1998 Toyota Sienna is around 30,000. Low Risk Zone — At this mileage, the Sienna is still very new. Issues are rare and typically covered under the original factory warranty. Focus on routine maintenance like oil changes and tire rotations.

Every answer is generated from real repair, recall, and ownership data — full breakdown in the report.

Read the full free report

Should You Buy the 1998 Toyota Sienna?

The 1998 Toyota Sienna stands as one of the most robust and practical minivans ever built, offering incredible longevity and low running costs for budget-conscious buyers. While its age demands a thorough pre-purchase inspection for wear items, a well-maintained example is a steadfast workhorse that can reliably serve for many more years.

If you're in the market for an incredibly reliable, no-frills family hauler on a budget, the 1998 Toyota Sienna is an outstanding choice. Its legendary powertrain and robust construction mean it can continue to serve faithfully for many years and miles, making it one of the smartest used vehicle purchases in its class.

Best Model Years

1998-2003 (First Generation Sienna)

Years to Avoid

None specifically for this generation, but always avoid examples with neglected maintenance history.

Biggest Strengths

  • Legendary 1MZ-FE V6 engine durability
  • Robust 4-speed automatic transmission
  • Overall solid build quality and rust resistance for its era

Top Risk Areas

The systems that tend to fail first on the 1998 Toyota Sienna, with the typical mileage window when each becomes a concern. Detailed repair-cost ranges and exact what-to-check inspection notes are in the full report.

1
Power Sliding Door Mechanismmoderate~80,000-120,000 mi

The power sliding door motor, cables, and sensors are prone to failure due to age and repeated use, leading to jerky operation or complete non-functionality. This is a common complaint on both sides.

2
Exhaust Systemmoderate~100,000-150,000+ mi

Due to age and exposure, the exhaust pipes, mufflers, and catalytic converter can rust through, leading to leaks, increased noise, or even complete system failure, especially in regions that use road salt.

3
Front Suspension Componentsmoderate~80,000-150,000 mi

Over time, front struts, control arm bushings, and sway bar links wear out, leading to clunking noises, reduced ride comfort, and compromised handling. This is typical for a vehicle of this age and mileage.

Full repair-cost ranges, fix-before-you-buy notes, and inspection checklists are in the report.

1998 Toyota Sienna Mileage Danger Zones

The mileage windows when the 1998 Toyota Sienna most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.

30,000

Low Risk Zone

At this mileage, the Sienna is still very new. Issues are rare and typically covered under the original factory warranty. Focus on routine maintenance like oil changes and tire rotations.

60,000

Maintenance Zone

This mileage marks the first significant factory recommended service, including fluid checks/changes, tire replacement, and brake inspection. Keep an eye on initial signs of suspension wear.

90,000

Elevated Risk Zone

Common wear items such as suspension components (struts, bushings) may start to show their age. Inspect power sliding doors carefully. Timing belt service is not required for the 1MZ-FE (it's a chain), but a major tune-up is advisable.

120,000+

High Risk Zone

At this point, you're primarily dealing with age and cumulative wear. Expect to address suspension overhaul, exhaust system rust, and potential valve cover gasket leaks. Diligent maintenance history is critical here to avoid major engine…

1998 Toyota Sienna Ownership Cost Outlook

What it typically costs to keep the 1998 Toyota Sienna on the road. Full 5-year cost-of-ownership projection and major-failure-risk forecast are in the report.

Annual Maintenance

$400-600

Moderate Repairs

$500-1,500 occasionally (e.g., suspension refresh, power door motor)

How Long Does the 1998 Toyota Sienna Last?

Don't be scared of higher mileage Siennas if the maintenance records are impeccable. A 150,000-mile example with a full service history is often a better buy than an 80,000-mile vehicle with no documented care.

What 1998 Toyota Sienna Owners Actually Say

What Owners Love

  • Exceptional long-term durability and reliability with basic maintenance.
  • Spacious and versatile interior, ideal for families or cargo.
  • Comfortable ride quality for long journeys.
  • Generally inexpensive parts and labor costs due to Toyota's widespread support.

Common Frustrations

  • Dated interior design and lack of modern amenities/technology.
  • Underpowered compared to newer minivans, especially when loaded.
  • Noticeable road and wind noise at highway speeds.
  • Power sliding door issues can be a recurring frustration.

Who Should Buy the 1998 Toyota Sienna?

Best For

  • Budget-conscious families needing reliable, spacious transport.
  • Small businesses or individuals needing a versatile cargo hauler.
  • DIY mechanics or those comfortable with basic vehicle maintenance.

Not Ideal For

  • Buyers seeking modern safety features and infotainment technology.
  • Those who desire spirited performance or refined driving dynamics.

How the 1998 Toyota Sienna Compares to Rivals

The 1998 Sienna significantly raised the bar for reliability in the minivan segment, handily outperforming its domestic rivals in terms of long-term durability and lower maintenance headaches. It rivals the first-gen Honda Odyssey in overall reliability, though the Odyssey had…

More Reliable Than

  • Chrysler Town & Country (first/second gen)
  • Dodge Grand Caravan (first/second gen)
  • Ford Windstar

Comparable To

  • Honda Odyssey (first generation)

NHTSA Recalls

3 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

STRUCTURE

TOYOTA IS RECALLING CERTAIN MODEL YEAR 1998 THROUGH 2010 SIENNA PASSENGER VEHICLES MANUFACTURED BETWEEN AUGUST 7, 1997 AND JANUARY 4, 2010, CURRENTLY REGISTERED IN OR ORIGINALLY SOLD IN CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, KENTUCKY, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WASHINGTON DISTRICT OF COLUMBIA, VIRGINIA, WEST VIRGINIA, AND WISCONSIN. THE SUBJECT VEHICLES ARE EQUIPPED WITH THE SPARE TIRE STOWED UNDER THE VEHICLE. IF THE VEHICLE IS OPERATED IN THE COLD CLIMATE REGIONS OF THE UNITED STATES WHERE ROAD SALT IS FREQUENTLY USED, WATER SPLASHED BACKWARDS WITH HIGH CONCENTRATIONS OF ROAD SALT CAN REACH THE SPARE TIRE CARRIER AND CORRODE THE SPARE TIRE CARRIER ASSEMBLY CABLE.

ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE

VEHICLE DESCRIPTION: SPORT UTILITY VEHICLES, MINI VANS AND PASSENGER VEHICLES EQUIPPED WITH A THEFT DETERRENT SYSTEMS (TDS) SUPPLIED BY AUDIOVOX CORPORATION AND DISTRIBUTED BY SOUTHEAST TOYOTA DISTRIBUTORS, INC. IN THE STATES OF ALABAMA, FLORIDA, GEORGIA, NORTH AND SOUTH CAROLINA. THE ALARM WIRING HARNESS PLUGS INTO THE VEHICLE'S IGNITION SWITCH AND THE VEHICLE'S IGNITION SWITCH WIRING HARNESS PLUGS INTO THE ALARM HARNESS TO COMPLETE THE CIRCUIT. A PERCENTAGE OF THE FEMALE TERMINALS USED IN THE ALARM CONNECTOR WERE FOUND TO BE DEFECTIVE, CAUSING AN 'OPEN CIRCUIT' CONDITION WHEN MATED TO THE MALE IGNITION SWITCH TERMINALS.

What breaks on the 1998 Toyota Sienna?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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Toyota Sienna by Year

Compare AutoScores across nearby years of the Toyota Sienna. Click any year for its full report.

If You're Considering This, Also Look At

Similar class, similar year range — ranked by AutoScore.

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