Jeep Grand Cherokee 1999–2000 — technical service bulletin
Bulletin 1802300 · NHTSA communication 616726 · issued Dec 1, 2000
Technical service bulletin
communication type
Engine and Engine Cooling
component
1999–2000
model years
2
vehicle entries
Official summary
Some vehicle engines may exhibit part throttle or wide open throttle spark knock; sag or hesitation following a cold engine start; rough idle; idle sag when decelerating to a stop. *tt
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.