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Service bulletin 476006

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 id37957
Published by NHTSA1995-02-09
Manufacturer's number476006
Manufacturer's date1994-12-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

POPPING/FLUTTERING/TICKING/SPARK KNOCK NOISE WHILE DRIVING UP MEDIUM GRADES OR ACCELERATING FROM A STOP. *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

Vehicles listed
BUICK PARK AVENUE1995
BUICK RIVIERA1995
OLDSMOBILE 881995
OLDSMOBILE 981995
PONTIAC BONNEVILLE1995

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
1300890092023-12-11. Service bulletin. Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
0406010212005-02-15. Service bulletin. NEW REAR MAIN SEAL AND SPECIAL TOOL FOR INSTALLATION. *TT
0406010172004-08-02. Service bulletin. NEW UPPER INTAKE MANIFOLD AND GASKET KITS. *TT
990603009A2003-04-26. Service bulletin. FLOOR PAN CORROSION PERFORATION IN BATTERY COMPARTMENT. *TT UPDATE *EH
010601008A2002-10-09. Service bulletin. SOME OWNERS MAY COMMENT ON A REPEAT ENGINE OIL PAN LEAK. *TT
010601007A2001-08-31. Service bulletin. EXPERIENCING EXCESSIVE ENGINE COOLANT CONSUMPTION, OR AN ENGINE COOLANT LEAK NEAR OR UNDER THE THROTTLE BODY AREA OF THE UPPER INTAKE MANIFOLD. *TT
0106010082001-05-17. Service bulletin. SOME OWNERS MAY COMMENT ON A REPEAT ENGINE OIL PAN LEAK. *TT
0106010072001-05-17. Service bulletin. ENGINE COOLANT CONSUMPTION OR COOLANT LEAK (INSPECT FOR MATERIAL DEGRADATION/REPLACE INTAKE MANIFOLDS) *TT UPDATED 11/02/07 *NJ
9906030092000-01-11. Service bulletin. CONDITIONS WITH FLOOR PAN CORROSION PERFORATION IN BATTERY COMPARTMENT. *TT
9906050052000-01-08. Service bulletin. SOME VEHICLES MAY EXHIBIT A POPPING TYPE NOISE HEARD IN THE PASSENGER COMPARTMENT. *TT