2003 Mitsubishi Eclipse Reliability ReportCommon Problems, Repair Costs & Expert Verdict
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Quick Facts · 2003 Mitsubishi Eclipse
- Has 5 NHTSA recalls on record — the most notable involves the fuel system, gasoline:delivery:fuel pump.
- Scores 10 points below the strongest nearby year — the 2004 Mitsubishi Eclipse earns a 78.
- The system most likely to surface first: automatic transmission (major severity).
The 2003 Mitsubishi Eclipse at a glance
- Is the 2003 Mitsubishi Eclipse reliable?
- Autojunket rates the 2003 Mitsubishi Eclipse 68/100 (grade C+), categorized as moderate risk. A fun, affordable coupe held back by an often-fragile automatic transmission and critical maintenance needs.
- Should I buy a used 2003 Mitsubishi Eclipse?
- Autojunket recommends reading the full reliability report before buying a 2003 Mitsubishi Eclipse. While visually appealing and fun to drive, the 2003 Mitsubishi Eclipse carries significant reliability risks, primarily due to its automatic transmission and critical timing belt service. A manual transmission model with impeccable service records is the only one I would consider, and even then, budget for age-relat…
- Which Mitsubishi Eclipse years are the most reliable?
- Best model years to buy: 2000-2005 (manual transmission preferred for all years). Years to avoid: Any year with an automatic transmission and no proof of transmission service history, especially 2000-2005.
- What are the most common problems with the 2003 Mitsubishi Eclipse?
- The top failure points on the 2003 Mitsubishi Eclipse are Automatic Transmission (typically around 70,000-120,000 miles), Engine Timing Belt (typically around 60,000-90,000 miles), Catalytic Converter (typically around 100,000-150,000 miles). Autojunket's full report includes repair-cost ranges and inspection checklists for each.
- At what mileage do problems start on the 2003 Mitsubishi Eclipse?
- The first major mileage danger zone for the 2003 Mitsubishi Eclipse is around 30,000. Low Risk Zone — This mileage typically reflects a well-maintained vehicle still under its prime, mostly requiring routine fluid changes, tire rotations, and inspections.
Every answer is generated from real repair, recall, and ownership data — full breakdown in the report.
Read the full free reportShould You Buy the 2003 Mitsubishi Eclipse?
The 2003 Mitsubishi Eclipse offers an attractive, sporty package for a budget-conscious buyer, but it demands careful pre-purchase inspection and diligent maintenance. Its automatic transmission is a known weak link, making a manual transmission a far safer bet for long-term ownership and overall satisfaction. Do not overlook its specific maintenance requirements.
While visually appealing and fun to drive, the 2003 Mitsubishi Eclipse carries significant reliability risks, primarily due to its automatic transmission and critical timing belt service. A manual transmission model with impeccable service records is the only one I would consider, and even then, budget for age-relat…
Best Model Years
2000-2005 (manual transmission preferred for all years)
Years to Avoid
Any year with an automatic transmission and no proof of transmission service history, especially 2000-2005
Biggest Strengths
- Stylish and distinctive design
- Available V6 engine offers decent power
- Generally robust manual transmissions
Top Risk Areas
The systems that tend to fail first on the 2003 Mitsubishi Eclipse, 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 4-speed automatic transmission (F4A51) in both I4 and V6 models is prone to premature failure, manifesting as slipping, harsh shifts, or complete loss of gears. This is often due to internal component wear or solenoid issues, exacerb…
Both the 2.4L I4 (4G64) and 3.0L V6 (6G72) engines are interference designs, meaning a broken timing belt will cause severe internal engine damage (bent valves, piston damage). Neglecting the prescribed replacement interval is a catastro…
The catalytic converter, particularly on higher mileage vehicles, can fail or become clogged, leading to reduced performance, 'Check Engine' light illumination (P0421/P0431 codes), and failure of emissions tests.
2003 Mitsubishi Eclipse Mileage Danger Zones
The mileage windows when the 2003 Mitsubishi Eclipse most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.
Low Risk Zone
This mileage typically reflects a well-maintained vehicle still under its prime, mostly requiring routine fluid changes, tire rotations, and inspections.
Maintenance Zone
This is a critical service interval for the timing belt on both engines. Neglecting this service will lead to catastrophic engine failure. Other wear items like spark plugs may also be due.
Elevated Risk Zone
Beyond the second timing belt interval for some (or overdue for others), automatic transmissions often begin to show signs of trouble here. Suspension components will likely need attention.
High Risk Zone
At this mileage, expect significant wear on major components. Automatic transmission failure is a high probability. Rust can become more pronounced, and catalytic converter issues may arise.
2003 Mitsubishi Eclipse Ownership Cost Outlook
What it typically costs to keep the 2003 Mitsubishi Eclipse on the road. Full 5-year cost-of-ownership projection and major-failure-risk forecast are in the report.
Annual Maintenance
$450-700
Moderate Repairs
$600-1,500 occasionally (e.g., timing belt, suspension work)
How Long Does the 2003 Mitsubishi Eclipse Last?
Focus on vehicles with documented timing belt service around 60k or 90k miles. If buying an automatic, avoid anything over 80,000 miles without recent transmission overhaul records.
What 2003 Mitsubishi Eclipse Owners Actually Say
What Owners Love
- Distinctive, sporty exterior styling
- Engaging driving experience, especially with manual V6
- Affordable to purchase on the used market
- Good aftermarket support for customization
Common Frustrations
- Automatic transmission failures are a constant frustration
- Interior plastics feel cheap and are prone to rattles
- High road noise at highway speeds
- V6 fuel economy can be disappointing
Who Should Buy the 2003 Mitsubishi Eclipse?
Best For
- Enthusiasts seeking a project car or customization platform
- Budget-conscious buyers prioritizing style over ultimate reliability
- Young drivers needing an affordable, sporty first car (manual only)
Not Ideal For
- Drivers seeking worry-free, long-term reliability
- Commuters who rely solely on automatic transmission
How the 2003 Mitsubishi Eclipse Compares to Rivals
The Eclipse offers unique styling and decent performance for its price point, but its automatic transmission reliability lags behind more robust competitors like the Civic Si or Celica. It's more of a stylistic choice with a few critical caveats.
More Reliable Than
- Pontiac Sunfire
- Saturn Ion Coupe
Comparable To
- Toyota Celica (less common auto trans issues, but similar age-related wear)
- Ford Focus ZX3 (sportier ride, but different reliability profile)
NHTSA Recalls
5 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
ON CERTAIN PASSENGER VEHICLES, THE FUEL RETURN LINE HOSE FITTING ON THE ELECTRIC FUEL PUMP MAY BE RESTRICTED, CAUSING EXCESSIVE FUEL PRESSURE TO BUILD UP IN THE FUEL INJECTION SYSTEM. EXCESSIVE FUEL PRESSURE MAY RESULT IN A LEAK IN THE FUEL RETURN HOSE.
EQUIPMENT:OTHER:LABELS
CERTAIN PASSENGER VEHICLES FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 208, 'OCCUPANT CRASH PROTECTION.' THE BILINGUAL ENGLISH/SPANISH REMOVABLE AIR BAG WARNING LABELS AFFIXED TO THE DASH AND TO THE SUNVISOR DO NOT MEET THE SIZE REQUIREMENTS OF THE STANDARD.
What breaks on the 2003 Mitsubishi Eclipse?
Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.
Autojunket OSC · OSC Transfer
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Mitsubishi Eclipse by Year
Compare AutoScores across nearby years of the Mitsubishi Eclipse. 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 2003 Mitsubishi Eclipse
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Where the 2003 Mitsubishi Eclipse 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
Sell your 2003 Mitsubishi Eclipse for what it's actually worth.
Log every service on your Mitsubishi Eclipse. 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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