2004 Nissan Altima Service and Repair Manual

This 2004 Nissan Altima factory service and repair manual is built around this car's exact year, engine and trim, so the specifications and procedures inside are what Nissan (and, for the QR25DE, the crank angle sensor design specifically) actually published for it, not a generic Altima-era approximation.

Engines covered

• 2.5L inline-four (152 cu in) — DOHC, naturally aspirated, gasoline
• 3.5L V6 — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Base
• S
• SE
• SL

Known issues on the 2004 Altima. Five recalls are on federal record for this model year, four of them tied to aftermarket headlight assemblies sold as replacement or add-on equipment: Anzo, Maxzone/DEPO, and Eagle Eyes lamp housings with deformed reflectors, corroded reflector surfaces, or missing amber side reflectors, each failing to meet Federal Motor Vehicle Safety Standard No. 108 and reducing illumination in ways that raise crash risk. The fifth covers the 2.5L engine's crank angle sensor, which is sensitive to temperature variations that can cause a brief interruption in the sensor's signal output; if that interruption is too brief for the ECM's diagnostic logic to catch, the engine can stop running without warning at low speed. Owners have filed 276 complaints for the year. The factory diagnostic and repair procedures behind each of those systems are here.

From a headlight aim and wiring check to chasing an intermittent stall on the 2.5L, it keeps you on the OEM procedure and correct specification for your specific 2004 Altima.