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Service bulletin SB-234030

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 id10032008
Published by NHTSA2010-02-04
Manufacturer's numberSB-234030
Manufacturer's date2009-03-30
NHTSA componentFUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS

NHTSA's summary

MACK TRUCK: AFTERTREATMENT FUEL INJECTOR (AFI) AIR PURGE SYSTEM, KIT INSTALLATION INSTRUCTIONS. A CONTINUOUS AIR PURGE SYSTEM WAS DEVELOPED AND IMPLEMENTED INTO PRODUCTION ON VEHICLES EQUIPPED WITH A CATALYZED DIESEL PARTICULATE FILTER (DPF). SYSTEM PROVIDES A CONSTANT STREAM OF AIR THROUGH THE NOZZLE TIP TO COMPLETELY PURGE ANY RESIDUAL FUEL FROM THE NOZZLE FOLLOWING A DPF REGENERATION. 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

Fuel system, Fuel injection

Vehicles listed
MACK MRU2007 to 2009

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