Chevrolet Silverado 2001–2004 — technical service bulletin

Bulletin 001496A · NHTSA communication 10005513 · issued Jan 1, 2004

Technical service bulletin

communication type

Engine and Engine Cooling

component

2001–2004

model years

vehicle entries

Official summary

This message is in regard to duramax turbocharger noises or possibly a performance or fuel economy complaint. Service vme. 6.6 lb7 diesel engine. P0102, p0103, p0236. *tt

Vehicles covered

2001 Chevrolet Silverado
2002 Chevrolet Silverado
2003 Chevrolet Silverado
2004 Chevrolet Silverado
2003 GMC C4500
2003 GMC C5500
2001 GMC Sierra
2002 GMC Sierra
2003 GMC Sierra
2004 GMC Sierra

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.