2003 MITSUBISHI Eclipse 4G63/Eclipse GSX (DK/DM)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Timing belt wear if servicing missed
• Cracks in turbo manifolds on 4G63 turbo
• Valve cover gasket leaks

First checks

• Check timing belt condition
• Inspect turbocharger operation (turbo models)
• Verify cooling system and radiator condition

Avant de remplacer des pièces

• Save fault codes and freeze-frame data before clearing anything.
• Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
• Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.

Important notes

• The 2003 Mitsubishi Eclipse was sold primarily in North America, Japan and Australia with minor market-specific variations.
• Turbocharged 4G63 engine mostly found in North American GSX and RS trims, naturally aspirated 4G64 used globally.