2004 Mitsubishi Eclipse Reliability ReportCommon Problems, Repair Costs & Expert Verdict
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Quick Facts · 2004 Mitsubishi Eclipse
- Has 5 NHTSA recalls on record — the most notable involves the fuel system, gasoline:delivery:fuel pump.
- Outscores the 2005 Mitsubishi Eclipse by 16 points — one of the stronger nearby years to consider.
- The system most likely to surface first: automatic transmission (major severity).
The 2004 Mitsubishi Eclipse at a glance
- Is the 2004 Mitsubishi Eclipse reliable?
- Autojunket rates the 2004 Mitsubishi Eclipse 78/100 (grade C+), categorized as moderate risk. A fun, affordable coupe that requires careful consideration and a proactive maintenance approach to avoid significant headaches.
- Should I buy a used 2004 Mitsubishi Eclipse?
- Autojunket recommends reading the full reliability report before buying a 2004 Mitsubishi Eclipse. While the 2004 Mitsubishi Eclipse offers a lot of style and fun for the money, its reliability is highly dependent on specific factors like transmission choice and prior maintenance. A manual transmission model, particularly if it's a V6 with documented timing belt service, is a much safer bet. Expect to budget for…
- Which Mitsubishi Eclipse years are the most reliable?
- Best model years to buy: 2003-2005 (manual transmission preferred). Years to avoid: 2000-2002 (especially automatics due to initial production issues).
- What are the most common problems with the 2004 Mitsubishi Eclipse?
- The top failure points on the 2004 Mitsubishi Eclipse are Automatic Transmission (typically around 80,000-140,000 miles), Rust & Corrosion (typically around 60,000+ miles), Electrical System (typically around 40,000-100,000 miles). Autojunket's full report includes repair-cost ranges and inspection checklists for each.
- At what mileage do problems start on the 2004 Mitsubishi Eclipse?
- The first major mileage danger zone for the 2004 Mitsubishi Eclipse is around 30,000. Low Risk Zone — At this mileage, the Eclipse should be performing well with minimal issues beyond routine maintenance. Early warning signs like stiff automatic shifts or minor electrical glitches might start to appear.
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 Mitsubishi Eclipse?
The 2004 Mitsubishi Eclipse is a stylish and affordable sport compact, but it's a vehicle that demands diligence from its owner. While its engines are generally robust, the automatic transmission can be a significant liability, and common electrical and rust issues can quickly escalate costs if neglected. This is not a 'set it and forget it' car, but with proper vetting and ongoing maintenance, it can deliver a satisfying driving experience.
While the 2004 Mitsubishi Eclipse offers a lot of style and fun for the money, its reliability is highly dependent on specific factors like transmission choice and prior maintenance. A manual transmission model, particularly if it's a V6 with documented timing belt service, is a much safer bet. Expect to budget for…
Best Model Years
2003-2005 (manual transmission preferred)
Years to Avoid
2000-2002 (especially automatics due to initial production issues)
Biggest Strengths
- Generally robust engine designs (with proper V6 timing belt service)
- Unique, sporty styling for its era
- Manual transmission models offer better long-term reliability
Top Risk Areas
The systems that tend to fail first on the 2004 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 is prone to solenoid failures, harsh shifts, slipping, and eventually complete failure, especially if fluid changes were neglected or done improperly. This is a common and expensive repair.
Body panels, especially rear wheel arches and rocker panels, are susceptible to rust, as are subframe components and exhaust systems, particularly in regions that use road salt.
Power window regulators are notoriously weak and prone to failure. Other common issues include oxygen sensor failures, crankshaft/camshaft position sensors, and intermittent dash lighting or stereo problems.
2004 Mitsubishi Eclipse Mileage Danger Zones
The mileage windows when the 2004 Mitsubishi Eclipse most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.
Low Risk Zone
At this mileage, the Eclipse should be performing well with minimal issues beyond routine maintenance. Early warning signs like stiff automatic shifts or minor electrical glitches might start to appear.
Maintenance Zone
This mileage marks critical service intervals, especially for the V6 timing belt. Neglecting these services dramatically increases risk. Suspension components may start showing initial wear.
Elevated Risk Zone
The automatic transmission becomes a significant concern here, with solenoid failures and slipping becoming more probable. Oxygen sensor and catalytic converter issues may also arise.
High Risk Zone
Beyond this point, major repairs become increasingly likely. Expect comprehensive wear across most systems, from engine components to significant rust and potential transmission overhaul needs.
2004 Mitsubishi Eclipse Ownership Cost Outlook
What it typically costs to keep the 2004 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
$600-1,800 occasionally
How Long Does the 2004 Mitsubishi Eclipse Last?
Focus on well-maintained examples under 90,000 miles to minimize exposure to major transmission and rust issues. Be extremely cautious with any automatic transmission model exceeding 120,000 miles unless there's documented proof of a recent transmission rebuild or replacement.
What 2004 Mitsubishi Eclipse Owners Actually Say
What Owners Love
- Unique and attractive styling that still turns heads
- Comfortable and supportive front seats for long drives
- Peppy acceleration from the V6 engine
- Affordable purchase price on the used market
Common Frustrations
- Automatic transmission can be frustratingly unreliable
- Rear seats are practically unusable for adults
- Road noise can be significant at highway speeds
- Interior plastics feel somewhat cheap and can show wear
Who Should Buy the 2004 Mitsubishi Eclipse?
Best For
- Budget-conscious buyers seeking a sporty, stylish coupe
- DIY mechanics comfortable with common repair work
- Individuals prioritizing unique aesthetics over absolute reliability
Not Ideal For
- Anyone who expects bulletproof, trouble-free ownership
- Drivers in rust-prone areas who don't garage their vehicle
How the 2004 Mitsubishi Eclipse Compares to Rivals
The Eclipse offers a distinct, sporty aesthetic that sets it apart from more mundane competitors. While it doesn't quite match the legendary reliability of some Honda or Toyota coupes, it often provides a more engaging driving experience than its direct budget rivals.
More Reliable Than
- Saturn SC
- Ford Focus ZX3 (certain years)
Comparable To
- Honda Civic Si (older generations)
- Hyundai Tiburon (first generation)
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 2004 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.
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Where the 2004 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 2004 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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