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Service bulletin MOD95M14

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 id45911
Published by NHTSA1996-04-25
Manufacturer's numberMOD95M14
Manufacturer's date1995-07-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

DETROIT DIESEL CORPORATION (DDC) HAS DETERMINED THAT CERTAIN DETROIT DIESEL SERIES 50 ENGINES WILL REQUIRE AN ECM PROGRAM UPGRADE AND POSSIBLY A VEHICLE SPEED SENSOR INSTALLED, ON SOME APPLICATIONS, TO PREVENT EXCESS SOOT IN THE LUBRICATING OIL. OUR RECORDS INDICATE THAT SOME OF THE AFFECTED ENGINES WERE SHIPPED TO YOU. A LIST OF THOSE ENGINE SERIAL NUMBERS IS ENCLOSED. TO HELP ASSURE CUSTOMER SATISFACTION WITH THE EQUIPMENT YOU HAVE ASSEMBLED WITH THESE ENGINES, DEALERS OF THESE AFFECTED ENGINES HAVE BEEN NOTIFIED AND INSTRUCTED TO CONTACT EACH CUSTOMER AND ARRRANGE A SERVICE DATE TO HAVE THE NECESSARY REPAIRS COMPLETED. *SD

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
DETROIT DETROIT

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