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Service bulletin 182798

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id602199
Published by NHTSA1998-10-15
Manufacturer's number182798
Manufacturer's date1998-08-21
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

SUBJECT PERTAINING TO DTC $B8 AND/ OR MIL ILLUMINATION. LEAK DETECTION PUMP SW OR MECHANICAL FAULT WILL BE SEEN CAUSED BY APARTIAL VACUUM BLOCKAGE IN THE LEAK DETECTION VACUUM SUPPLY. *AK

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Exhaust and emissions

Vehicles listed
JEEP GRAND CHEROKEE1997, 1998

Listing a model year does not mean every vehicle of it is concerned: the document says which.

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1801002000-04-12. Service bulletin. SUBJECT REGARDING MISDIAGNOSED LEAK DETECTION PUMP SYSTEMS WITH DIAGNOSTIC TROUBLE CODES P1494, P0442 P0455, OR P0456. *TT
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1835971999-11-05. Service bulletin. CONDITION WITH SAGGING OR HESITATION WHILE ACCELERATING FROM A STOP WITH A COLD ENGINE OR AFTER A PARTIAL COOL DOWN. *AK
8311999-11-03. Service bulletin. EMISSIONS RECALL TO REPROGRAM YOUR VEHICLE'S POWERTRAIN CONTROL MODULE. *TT
0906991999-10-18. Service bulletin. SUBJECT REGARDING SPARK KNOCK AND ENGINE OIL CONSUMPTION DUE TO INTAKE MANIFOLD PAN GASKET OIL LEAK. *TT
0709981999-02-02. Service bulletin. SUBJECT ON VISCOUS FAN DRIVE SERVICE. *YC