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Service bulletin MOD95M6

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 id45655
Published by NHTSA1995-11-01
Manufacturer's numberMOD95M6
Manufacturer's date1995-06-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

DETROIT DIESEL CORPORATION (DDC) HAS DETERMINED THAT CERTAIN 6V-92 DDEC FIRE TRUCK ENGINES WILL REQUIRE THE REPLACEMENT OF THE BLOWER BYPASS VALVE COUPLED WITH AN ECM REPROGRAM. DETROIT DIESEL DEALERS ARE TO SERVICE ALL ENGINES SUBJECT TO THIS MODIFICATION. *TW

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 DETROIT1993 to 1995

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