2004 Toyota 4Runner Reliability ReportCommon Problems, Repair Costs & Expert Verdict
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Quick Facts · 2004 Toyota 4Runner
- Has 2 NHTSA recalls on record — the most notable involves the air bags:side/window.
- Outscores the 2002 Toyota 4Runner by 3 points — one of the stronger nearby years to consider.
- The system most likely to surface first: frame & underbody rust (critical severity).
The 2004 Toyota 4Runner at a glance
- Is the 2004 Toyota 4Runner reliable?
- Autojunket rates the 2004 Toyota 4Runner 91/100 (grade A-), categorized as low risk. A truly legendary SUV, but its incredible longevity hinges entirely on a rust-free frame.
- Should I buy a used 2004 Toyota 4Runner?
- Autojunket recommends reading the full reliability report before buying a 2004 Toyota 4Runner. The 2004 Toyota 4Runner is an unequivocally strong choice for a used SUV, offering legendary reliability and capability that few vehicles can match. Its robust mechanicals ensure years of dependable service, provided you secure a well-maintained, rust-free example. With diligent inspection and preventative rust meas…
- Which Toyota 4Runner years are the most reliable?
- Best model years to buy: 2003-2009 (V6 models are generally preferred for simplicity). Years to avoid: No specific years to avoid, but models from rust-belt regions demand extreme caution..
- What are the most common problems with the 2004 Toyota 4Runner?
- The top failure points on the 2004 Toyota 4Runner are Frame & Underbody Rust (typically around All mileages in affected regions miles), Exhaust Manifolds (V8 Engine) (typically around 80,000-150,000 miles), X-REAS Sport Suspension (typically around 90,000-180,000 miles). Autojunket's full report includes repair-cost ranges and inspection checklists for each.
- At what mileage do problems start on the 2004 Toyota 4Runner?
- The first major mileage danger zone for the 2004 Toyota 4Runner is around 30,000. Low Risk Zone — At this mileage, the 4Runner is still very new. Focus on routine fluid changes and tire rotations. There are virtually no common reliability concerns at this stage.
Every answer is generated from real repair, recall, and ownership data — full breakdown in the report.
Read the full free reportShould You Buy the 2004 Toyota 4Runner?
The 2004 Toyota 4Runner is an absolute workhorse, renowned for its bulletproof V6 engine and rugged construction, making it one of the most dependable SUVs of its era. This vehicle offers exceptional long-term value and capability, assuming you meticulously inspect for frame rust, which is the primary Achilles' heel. If you can find a rust-free example, especially with the V6, it represents a fantastic investment for years of reliable service.
The 2004 Toyota 4Runner is an unequivocally strong choice for a used SUV, offering legendary reliability and capability that few vehicles can match. Its robust mechanicals ensure years of dependable service, provided you secure a well-maintained, rust-free example. With diligent inspection and preventative rust meas…
Best Model Years
2003-2009 (V6 models are generally preferred for simplicity)
Years to Avoid
No specific years to avoid, but models from rust-belt regions demand extreme caution.
Biggest Strengths
- V6 1GR-FE engine durability
- Robust automatic transmission
- Exceptional long-term structural integrity (excluding rust)
Top Risk Areas
The systems that tend to fail first on the 2004 Toyota 4Runner, 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.
The ladder frame and underbody components are highly susceptible to severe rust and corrosion, especially in regions that use road salt. This can compromise structural integrity, brake lines, fuel lines, and suspension mounting points.
The V8 2UZ-FE engine is known to develop cracks in the exhaust manifolds, leading to ticking noises, exhaust leaks, and potential check engine lights. Repair requires significant labor and parts, often involving aftermarket replacements.
Sport Edition models equipped with the X-REAS (Cross-Relative Absorber System) suspension can suffer from leaking dampers, leading to a degraded ride quality and needing expensive replacement of the entire system, as individual component…
2004 Toyota 4Runner Mileage Danger Zones
The mileage windows when the 2004 Toyota 4Runner most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.
Low Risk Zone
At this mileage, the 4Runner is still very new. Focus on routine fluid changes and tire rotations. There are virtually no common reliability concerns at this stage.
Maintenance Zone
Critical for preventative maintenance, including spark plugs and differential/transfer case fluids. V8 models require a timing belt inspection/replacement at 90k, so budget for that soon. Brake caliper issues may start to emerge.
Elevated Risk Zone
This mileage demands attention to the V8 timing belt and water pump service. Suspension components like shocks/struts will be nearing replacement. Frame rust should be meticulously inspected, as it can be well underway in affected areas.
High Risk Zone
Beyond 120,000 miles, the longevity of the 4Runner relies heavily on meticulous maintenance. Expect to address age-related failures such as door lock actuators, power window regulators, and persistent brake issues. Frame rust can become…
2004 Toyota 4Runner Ownership Cost Outlook
What it typically costs to keep the 2004 Toyota 4Runner 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
How Long Does the 2004 Toyota 4Runner Last?
High mileage on a 4Runner is less of a concern than its maintenance history and rust condition. A 4Runner with 200,000+ miles but a clean frame and diligent records is often a better purchase than a low-mileage, neglected, or heavily rusted example.
What 2004 Toyota 4Runner Owners Actually Say
What Owners Love
- Exceptional longevity and reliability of the engine and transmission
- Outstanding off-road capability and ground clearance
- Strong towing capacity for its class (especially V8)
- Commanding driving position and good visibility
Common Frustrations
- Poor fuel economy, especially with the V8
- Dated interior design and technology compared to newer vehicles
- Significant frame rust potential in Northern climates
- Firm ride quality on rough roads (especially with X-REAS or worn shocks)
Who Should Buy the 2004 Toyota 4Runner?
Best For
- Outdoor enthusiasts and campers needing off-road capability
- Families seeking a safe, durable, and reliable daily driver
- Individuals needing strong towing capacity in a mid-size package
Not Ideal For
- Budget-conscious buyers prioritizing fuel economy
- Those who need the latest in technology and interior comforts
How the 2004 Toyota 4Runner Compares to Rivals
The 4Runner's overall mechanical durability, particularly its drivetrain, consistently outperforms most domestic and some foreign competitors from the same era, with its closest rival often being its luxury counterpart, the Lexus GX 470.
More Reliable Than
- Ford Explorer (3rd Gen)
- Nissan Pathfinder (R50)
- Chevrolet Trailblazer (GMT360)
Comparable To
- Lexus GX 470 (its luxury twin)
- Honda Pilot (1st Gen)
NHTSA Recalls
2 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.
AIR BAGS:SIDE/WINDOW
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2003-2006 Toyota Land Cruiser and Lexus LX470, 2005-2006 Toyota Tundra and Sequoia, 2004-2006 Toyota 4Runner and Lexus GX470 vehicles equipped with side curtain-shield-air bags. The affected vehicles have an air bag control module that may be improperly programmed, causing the side curtain-shield-air bags to deploy inadvertently.
VEHICLE SPEED CONTROL:ACCELERATOR PEDAL
TOYOTA IS RECALLING CERTAIN MODEL YEAR 2008 THROUGH 2011 LEXUS LX570, 2003 THROUGH 2009 TOYOTA 4RUNNER, AND 2006 THROUGH 2010 RAV4 VEHICLES. THE ACCELERATOR PEDAL CAN GET STUCK IN THE WIDE OPEN POSITION DUE TO ITS BEING TRAPPED BY AN UNSECURED OR INCOMPATIBLE DRIVER'S FLOOR MAT.
What breaks on the 2004 Toyota 4Runner?
Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.
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Toyota 4Runner by Year
Compare AutoScores across nearby years of the Toyota 4Runner. Click any year for its full report.
If You're Considering This, Also Look At
Similar class, similar year range — ranked by AutoScore.
Relevant Products for Your 2004 Toyota 4Runner
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Where the 2004 Toyota 4Runner report beats Carfax + CR
Carfax tells you if it crashed. Consumer Reports rates the whole nameplate. Autojunket tells you what will actually break on this specific year — and how to negotiate it.
Year-specific reliability score
Common problems + repair costs
Mileage danger zone map
AI negotiation script + walk-away price
Single report price
Frequently Asked Questions
Related Comparisons
Sell your 2004 Toyota 4Runner for what it's actually worth.
Log every service on your Toyota 4Runner. When it's time to sell, hand the buyer a signed PDF — every receipt, mileage-verified, close the deal at your price.
- OSC Transfer PDF — every receipt
- Snap-a-receipt AI log
- Fuel & mileage tracker
- Shareable buyer view link
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