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Service bulletin 97M91

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 id638093
Published by NHTSA2002-12-10
Manufacturer's number97M91
Manufacturer's date2002-03-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

NHTSA's summary

SUBJECT REGARDING 97M91 PARTS UPDATE #2 - INTAKE MANIFOLD ADDITIONAL COVERAGE. *TT

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
FORD CROWN VICTORIA
FORD MUSTANG
FORD THUNDERBIRD
LINCOLN TOWN CAR
MERCURY COUGAR

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