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Service bulletin 676001

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 id51353
Published by NHTSA1999-12-15
Manufacturer's number676001
Manufacturer's date1997-02-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

NHTSA's summary

EXCESSIVE OIL CONSUMPTION (REPLACE PCV HARNESS). *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
CHEVROLET LUMINA1991, 1992, 1993, 1994, 1995
CHEVROLET MONTE CARLO1995
OLDSMOBILE CUTLASS1991 to 1993
OLDSMOBILE CUTLASS SUPREME1994, 1995
PONTIAC GRAND PRIX1991, 1992, 1993, 1994, 1995

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