Saturn LS 2000–2002 — technical service bulletin
Bulletin 02T48 · NHTSA communication 633491 · issued Jun 1, 2002
Technical service bulletin
communication type
Engine and Engine Cooling
component
2000–2002
model years
3
vehicle entries
Official summary
Subject regarding mass air flow sensor failure due to oil contamination of sensor membrane (install new mass air flow (maf) sensor and update electronic control module calibration) *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.