Chevrolet Chevrolet Truck 2001–2002 — technical service bulletin
Bulletin 050901 · NHTSA communication 626068 · issued Sep 5, 2001
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001–2002
model years
7
vehicle entries
Official summary
Subject regarding certain models including 2001-2002 chevrolet and gmc gmt 800 rpl lb7 6600 duramax diesel engine failures. *slc
Vehicles covered
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.