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Service bulletin 3115

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 id10009950
Published by NHTSA2004-11-03
Manufacturer's number3115
Manufacturer's date2004-01-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

NHTSA's summary

ENGINE INTAKE MANIFOLD COOLANT LEAK. *SC

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, Exhaust manifold, pipes and muffler

Vehicles listed
BUICK LESABRE1998, 1999
BUICK PARK AVENUE1999
BUICK REGAL1999
BUICK RIVIERA1999
CHEVROLET LUMINA1998, 1999
CHEVROLET MONTE CARLO1998, 1999
OLDSMOBILE 881999
OLDSMOBILE INTRIGUE1999
PONTIAC BONNEVILLE1999
PONTIAC GRAND PRIX1999

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

Recalls for the same vehicles and component
15V7010002015-10-26. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE AND ENGINE COOLING: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
0406050082005-02-14. Service bulletin. AVAILABILITY OF EXHAUST MUFFLER FOR SERVICE. *TT
0406010172004-08-02. Service bulletin. NEW UPPER INTAKE MANIFOLD AND GASKET KITS. *TT