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December 18, 1998 Service bulletin

Some vehicles may exhibit a sag/ hesitation following a cold engine start or partial cool down re-start,...

Jeep technical service bulletin 184498 for 1999 Jeep Grand Cherokee.

Bulletin number
184498
Component
Engine and engine cooling: exhaust system: emission control
Summary
Some vehicles may exhibit a sag/ hesitation following a cold engine start or partial cool down re-start, could be caused by the oxygen sensor entering closed loop prematurely/is experienced within first 30-40 seconds into the drive cycle. Ak

Owners of these vehicles have filed 143 complaints in the engine category.

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