Jeep Grand Cherokee 2002–2004 — technical service bulletin
Bulletin 2500103 · NHTSA communication 10001100 · issued Feb 21, 2003
Technical service bulletin
communication type
Engine and Engine Cooling
component
2002–2004
model years
3
vehicle entries
Official summary
Duty cycle purge solenoid causes a ticking-like sound from engine compartment. *tt
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.