Chevrolet Kodiak 2001–2004 — technical service bulletin

Bulletin 3011 · NHTSA communication 10008780 · issued Jan 1, 2004

Technical service bulletin

communication type

Engine and Engine Cooling

component

2001–2004

model years

vehicle entries

Official summary

Repeat engine oil leak at main bearing side bolt. *tt

Vehicles covered

2001 Chevrolet Kodiak
2003 Chevrolet Kodiak
2004 Chevrolet Kodiak
2001 Chevrolet Silverado
2002 Chevrolet Silverado
2003 Chevrolet Silverado
2004 Chevrolet Silverado
2001 GMC Sierra
2002 GMC Sierra
2003 GMC Sierra
2004 GMC Sierra
2003 GMC Topkick
2004 GMC Topkick

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.