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Service bulletin 776001

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 id51302
Published by NHTSA1997-06-27
Manufacturer's number776001
Manufacturer's date1997-03-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

KNOCK, RATTLE OR TAP NOISE FROM THE ENGINE BEFORE THE ENGINE HAS REACHED OPERATING TEMPERATURE OR UNDER LIGHT LOAD CONDITIONS AT OPERATING TEMPERATURE KNOCK, RATTLE OR TAP NOISE FROM THE ENGINE BEFORE THE ENGINE HAS REACHED OPERATING TEMPERATURE OR UNDER LIGHT LOAD CONDITIONS AT RATURE (REPLACE PISTON AND/OR ROD ASSEMBLIES). *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

Vehicles listed
BUICK CENTURY1994, 1995, 1996
CHEVROLET BERETTA1994, 1995, 1996
CHEVROLET CAVALIER1994, 1995, 1996, 1997
CHEVROLET CORSICA1994, 1995, 1996
CHEVROLET S101994 to 1997
GMC SONOMA1994, 1995, 1996, 1997
OLDSMOBILE CIERA1994 to 1996
PONTIAC SUNFIRE1995
PONTIAC SUNFIRE1996

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

Recalls for the same vehicles and component
20001092000-04-28. Engine
19990161999-02-15. Engine
19951881995-10-20. Engine
19940151994-02-02. Engine
19931391993-10-05. 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
PI09692018-06-04. Service bulletin. This preliminary informational bulletin provides information on High Oil Pressure on Startup After Engine Replacement Concern.
30812004-11-17. Service bulletin. SERVICE ENGINE SOON LIGHT AND P0300 WHEN TOWING, CRUISING UPHILL OR ON HARD ACCELERATION. *TT
012252004-07-08. Service bulletin. ENGINE COOLANT LEAK AT INTAKE GASKET. * MJ
017272004-04-30. Service bulletin. 4.3 L35 LU3 RATTLE OR BUZZ NOISE FROM ENGINE. SIT BULLETIN 1457619. *TT
030601024A2003-12-02. Service bulletin. RATTLE NOISE IN ENGINE. *TT
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
990602012D2002-09-28. Service bulletin. SUBJECT REGARDING RUST IN COOLING SYSTEM, HEATER INOPERATIVE, BLOWS COLD AIR, ENGINE OVERHEATS (FLUSH COOLING SYSTEM). NLM
0106020122002-03-21. Service bulletin. SOME OWNERS MAY COMMENT ON LEAKAGE OF A FEW DROPS OF COOLANT AFTER PARKING THEIR VEHICLE. *TT