2003 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026
2003 · All trims · All engines
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2003 Mitsubishi Eclipse has 3 documented known issues, with 2 rated critical. The most serious are Automatic Transmission Failure (4-Speed) ($1,500-$4,000 repair) and Timing Belt Tensioner and Water Pump Failure ($400-$1,200 repair). Across all issues with published estimates, repair costs range from $300 to $4,000. DIY maintenance guides at au7o.io.
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
Mitsubishi Motors North America, Inc. (MMNA) is recalling certain model year 2006-2009 Eclipse vehicles manufactured April 20, 2005, to February 13, 2009, and 2007-2009 Eclipse Spyder vehicles manufactured December 23, 2005, to February 13, 2009. Due to corrosion inside the antil-lock brake system (ABS) unit, one or more of the internal valves may seize. In a braking event that uses the ABS, a seized valve would increase brake pedal travel and reduce braking ability.
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2003 Mitsubishi Eclipse has 3 documented issues. The most frequently reported are: Automatic Transmission Failure (4-Speed), Timing Belt Tensioner and Water Pump Failure, V6 Engine Oil Consumption. Of these, 2 are rated critical and should be addressed promptly.
The 2003 Mitsubishi Eclipse has 3 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 2 issues are rated critical: Automatic Transmission Failure (4-Speed) and Timing Belt Tensioner and Water Pump Failure. 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.
Repair costs for known Mitsubishi Eclipse issues range from $300 to $4,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Automatic Transmission Failure (4-Speed), typically costs $1,500-$4,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
The 4-speed automatic transmission in the 3rd generation Eclipse (particularly V6 GT models) is prone to premature failure. The transmission develops harsh shifting, slipping, and eventually fails completely, often due to overheating and worn clutch packs. Repairs typically run $1,500-$4,000. Severity: high.
The Eclipse timing belt tensioner hydraulic damper fails, allowing the timing belt to become loose and potentially jump teeth. The water pump, driven by the timing belt, also develops bearing failure and coolant leaks. These failures are particularly common on the 4G64 and 4G69 e… Repairs typically run $400-$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.
The 3.0L 6G72 and 3.8L 6G75 V6 engines in the Eclipse GT develop excessive oil consumption over time. Worn valve stem seals and piston ring glazing allow oil to enter the combustion chambers, producing blue exhaust smoke and requiring frequent top-offs. Repairs typically run $300-$2,500. Severity: medium.
