2003 LINCOLN LS INTECH V8 3.9L AJ35D/InTech V6 3.0L DOHC Duratec 30 3.0L V6 (regional) (U214)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Rear air suspension issues in later years
• Electrical gremlins in door modules (region dependent)

First checks

• Inspect for oil leaks in valve cover gaskets
• Check transmission shifting smoothness
• Verify air suspension functionality if equipped

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 Lincoln LS was produced primarily for North America but was also available in select export markets with minor engine variations.
• The 2003 model is part of the first generation produced from 2000-2006 with no major mechanical revisions this model year.