Jeep Wrangler 1998 — technical service bulletin
Bulletin 182898 · NHTSA communication 602198 · issued Aug 21, 1998
Technical service bulletin
communication type
Engine and Engine Cooling
component
1998
model years
1
vehicle entries
Official summary
Erroneous mil with dtc $71(po441) -evap purge flow monitor failure due to inappropriate fuel level readings during the test sequence. *ak
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.