Chevrolet Express 1998–2001 — technical service bulletin
Bulletin 170801 · NHTSA communication 625331 · issued Aug 17, 2001
Technical service bulletin
communication type
Engine and Engine Cooling
component
1998–2001
model years
12
vehicle entries
Official summary
Vehicles may experience an exhaust system noise. *jg
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.