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Service bulletin 970901776520

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 id54342
Published by NHTSA1998-03-30
Manufacturer's number970901776520
Manufacturer's date1997-09-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

EXPERIENCING AN INTERMITTENT ROUGH IDLE OR MISFIRE AT IDLE AFTER THE ENGINE IS STARTED. *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

Vehicles listed
CHEVROLET CHEVROLET1998
CHEVROLET LUMINA1997
CHEVROLET MONTE CARLO1997

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

Recalls for the same vehicles and component
19990831999-05-12. Engine

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
1300890092023-12-11. Service bulletin. Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
010601002A2003-03-31. Service bulletin. REVISED PISTON PIN REMOVAL / INSTALLATION PROCEDURE. *TT
0206010142002-10-07. Service bulletin. SUBJECT REGARDING REVISED LOWER INTAKE MANIFOLD INSTALLATION. *TT
010601010A2001-08-30. Service bulletin. SUBJECT REGARDING POLYMER SERVICE PISTONS. *TT
990604005A2001-05-24. Service bulletin. SOME OWNERS MAY COMMENT ON DRIVEABILITY SYMPTONS OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE DUE TO CLOGGED FUEL INJECTORS. *TT
876002A2000-12-26. Service bulletin. SOME V6 ENGINES MAY, ON A VERY INFREQUENT BASIS, HAVE AN OIL ODOR CONDITION THAT IS GENERALLY ENCOUNTERED AFTER THE ENGINE'S OIL HAS BEEN CHANGED.TYPICALLY THE ODOR LASTS APPROXIMATELY 1000 MILES AFTER THE CHANGE OF OIL AND THEN DOES NOT REAPPEAR UNTIL THE NEXT CHANGE OF OIL. *TT
9906040051999-04-26. Service bulletin. SOME OWNERS MAY EXPERIENCE A DRIVEABILITY SYMPTOM OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE. *TT