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Service bulletin 971101776120

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 id54202
Published by NHTSA1998-03-30
Manufacturer's number971101776120
Manufacturer's date1997-11-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

EXPERIENCING A LOUD EXHAUST NOISE IN THE ENGINE COMPARTMENT. *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 CHEVROLET1997
GMC GMC1997

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