March 1, 2005 Service bulletin

Revised inspection/maintenance (i/m) evaporative emission (EVAP) system set procedure

Chevrolet technical service bulletin 050604021 for 2003-2004 Chevrolet Tahoe, 2003-2004 Chevrolet Silverado and 2003-2004 Chevrolet Suburban and others.

Bulletin number: 050604021
Component: Engine and engine cooling: exhaust system: emission control
Summary: Revised inspection/maintenance (I/m) evaporative emission (evap) system set procedure. Tt

Owners of these vehicles have filed 542 complaints in the engine category.

Vehicles covered

Chevrolet Tahoe 2003-2004 2003 2004
Chevrolet Silverado 2003-2004 2003 2004
Chevrolet Suburban 2003-2004 2003 2004
Chevrolet Blazer 2003-2004 2003 2004
Chevrolet Trailblazer 2003-2004 2003 2004
Chevrolet S10 2003-2004 2003 2004
GMC Yukon 2003-2004 2003 2004
GMC Sierra 2003-2004 2003 2004
GMC Jimmy 2003-2004 2003 2004
Chevrolet Astro 2003-2004 2003 2004
GMC Envoy 2003-2004 2003 2004
Chevrolet Avalanche 2003-2004 2003 2004
Cadillac Escalade 2003-2004 2003 2004
GMC Sonoma 2004 2004
GMC Safari 2003-2004 2003 2004
Chevrolet Express 2003-2004 2003 2004
Buick Rainier 2004 2004
GMC Savana 2003-2004 2003 2004
Hummer H2 2003-2004 2003 2004
Isuzu Ascender 2003-2004 2003 2004
Chevrolet SSR 2003-2004 2003 2004
Isuzu NPR 2003-2004 2003 2004
Isuzu NQR 2003-2004 2003 2004

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