2003 Chevrolet Blazer Service and Repair Manual

This factory service and repair manual for the 2003 Chevrolet Blazer serves LS, Xtreme and ZR2 versions of the two-door and four-door sport utility, each with the 4.3-liter overhead-valve V6 of 262 cubic inches, naturally aspirated and gasoline-fueled. With the engine fixed across the range, the differences worth knowing are in chassis and equipment content, and the manual meets them where they matter: suspension and steering specifications, driveline procedures, brake data and wiring diagrams drawn circuit by circuit rather than as one overview.

Engines covered

• 4.3L V6 (262 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

• 2-door sport utility
• 4-door sport utility

Trims covered

• LS
• Xtreme
• ZR2

Known issues on the 2003 Blazer. One recall is on the federal record, and it is a compliance matter rather than a broken part: an air bag warning label carries incorrect statements, which puts the vehicle outside the federal occupant crash protection standard. Owners have filed 104 complaints, spread almost evenly across three areas — 14 on the electrical system, 13 on air bags and 13 on the fuel system. The restraint diagnostics, fuel delivery testing and body wiring diagrams needed to work through those areas are all in this manual.