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Service bulletin 004/97B

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 id52498
Published by NHTSA1997-08-14
Manufacturer's number004/97B
Manufacturer's date1997-05-19
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

NHTSA's summary

PARTIAL ENGINE REPLACEMENT (PCV SYSTEM MODIFICATION). *TW

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, EGR valve

Vehicles listed
MAZDA 6261993, 1994, 1995, 1996
MAZDA MILLENIA1995, 1996
MAZDA MX-31994, 1995, 1996
MAZDA MX-61993, 1994
MAZDA MX-61995
MAZDA MX-61996
MAZDA MX31992, 1993

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