Lack of power LU3 engine) at high ambient temperatures only (if necessary, reprogram PCM with new service...
Chevrolet technical service bulletin 050604077 for 2003-2005 Chevrolet Silverado, 2003-2004 Chevrolet Blazer and 2003-2005 GMC Sierra and others.
- Bulletin number
- 050604077
- Component
- Engine and engine cooling: engine
- Summary
- Lack of power lu3 engine) at high ambient temperatures only (if necessary, reprogram PCM with new service calibration). Ak
Owners of these vehicles have filed 147 complaints in the engine category.
Vehicles covered
- Chevrolet Silverado 2003-2005 200320042005
- Chevrolet Blazer 2003-2004 20032004
- GMC Sierra 2003-2005 200320042005
- GMC Jimmy 2003-2004 20032004
- Chevrolet Astro 2003-2005 200320042005
- GMC Sonoma 2003-2004 20032004
- GMC Savana 2003-2004 20032004
- Chevrolet Express 2500 2005 2005
- Airstream Safari 2003-2005 200320042005
- Blue Bird Express 4000 2003-2004 20032004
- Quality Coach Savana 2005 2005
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