2003 Ford Grand Marquis Service and Repair Manual

This factory service and repair manual for the 2003 Ford Grand Marquis is a reference for a single sedan design sold in two trims, Base and Equipado, with one engine, the 4.6L V8 (281 cu in), single-overhead-cam and naturally aspirated. The manual's procedures, specifications and torque values therefore describe the same V8 and four-door body for both trims, and the wiring diagrams and diagnostics cover the shared electrical system. For a shop, that keeps the work simple: the figures for one car are the figures for the other.

Engines covered

• 4.6L V8 (281 cu in) — SOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Base
• Equipado

Known issues on the 2003 Grand Marquis. Open recalls can be checked by VIN on NHTSA's recall lookup. What the manual covers is the 4.6L V8 sedan, with procedures, specifications, torque values, wiring diagrams and diagnostics for the single-overhead-cam engine and for the rest of the sedan in either of its two trims.