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Service bulletin 98028A

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 id602673
Published by NHTSA1999-01-06
Manufacturer's number98028A
Manufacturer's date1998-11-01
Replaces98-028
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

EXHAUST SYSTEM WARRANTY EXTENSION INFORMATION. *YC

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
INFINITI QX41997, 1998

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

Other bulletins for the same vehicles and component
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ITB000362000-09-27. Service bulletin. SUBJECT REGARDING VG33E PISTON REPLACEMENT. *TT
ITB990552000-04-26. Service bulletin. SOME VEHICLES BUILT BEFORE JNRAR07YXYW075013 MAY EXHIBIT HARD STARTING IN COLD TEMPERATURES AND HIGH ALTITUDES. *TT
ITB98047A1999-10-29. Service bulletin. SOME VEHICLES BUILT BEFORE JNRAR05Y*XW047868 MAY EXHIBIT A HARD TO START CONDITION AT HIGH ALTITUDE AND COLD CONDITIONS. *TT
ITB990151999-05-11. Service bulletin. SERVICE MANUAL PROCEDURE CHANGE FOR REAR OXYGEN SENSOR DIAGNOSTIC TROUBLE CODE(DTC(S) AND THREE-WAY CATALYST DTC. *TT
ITB990031999-04-22. Service bulletin. SUBJECT REGARDING MALFUNCTION INDICATOR LAMP ON WITH 02 SENSOR DTCS. *TT
ITB980471999-03-15. Service bulletin. EXPERIENCING DIFFICULTY STARTING AT HIGH ELEVATION ( OVER 5,OOO FT. ) AND / OR LOW AMBIENT TEMPERATURES AFTER A 4-6 HOUR COLD SOAK. *YC
ITB970221997-07-17. Service bulletin. QX4 ENGINE HEATER. *TW
ITB970031997-06-27. Service bulletin. RELEASING A FRONT HEATED OXYGEN SENSOR WRENCH AS AN ESSENTIAL TOOL TO EACH INFINITI RETAILER. *JD