Mitsubishi Lancer Evo CT9A — Reliability

CT9A 2001–2003 1 engine

Reliability Summary

Engine 4G63 Turbo — 60/100 CAUTION
Known Issues 5

Engine in this model

CAUTION 60

4G63 Turbo

2.0L Turbo I4

Cast-iron-block 2.0 turbo from the Galant VR-4 and Lancer Evolution I-IX. Durable in standard form, ...

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Known Issues Across All Engines

Issue Engine Severity Onset
Turbocharger coolant hose leak — fire risk (recall, 2005 Evo VIII) 4G63 Turbo critical —
Timing belt and balance-shaft belt — engine damage if either fails 4G63 Turbo critical —
Head gasket and piston damage on remapped engines 4G63 Turbo high —
Turbocharger seal or bearing wear 4G63 Turbo minor —
Hydraulic tappet noise after infrequent oil changes 4G63 Turbo minor —