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Service bulletin ITS-4436

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 id10035084
Published by NHTSA2011-02-09
Manufacturer's numberITS-4436
Manufacturer's date2011-02-09
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

NEW FLYER: INSPECT EXHAUST TUBE FOR LEAK AND ALIGNMENT. REMOVE AND REPLACE FLEX CONNECTOR AS REQUIRED. MODELS 40FT, 60FT, DSL, CNG, ELEC. NO MODEL YEARS LISTED. *PE

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
NEW FLYER DE40LF2004 to 2009
NEW FLYER DE40LFA2009
NEW FLYER DE40LFR2006 to 2009

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