WenmarOpen by Wenmar Pro

Service bulletin SB-65-09

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 id10030527
Published by NHTSA2009-10-14
Manufacturer's numberSB-65-09
Manufacturer's date2009-06-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

NHTSA's summary

DETROIT DIESEL: DELTA P SENSOR. THE CLEANING OF THE DELTA P SENSOR HAS BEEN ADDED. THE DELTA P SENSOR IS MOUNTED ON THE EXHAUST GAS RECIRCULATION (EGR) VENTURI PIPE. THE MOTOR CONTROL MODULE (MCM) RECEIVES A SIGNAL FROM THE DELTA P SENSOR WHICH SENSES PRESSURE AND DROP ACROSS THE EGR VENTURI. NO MODEL OR 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, EGR valve

Vehicles listed
DETROIT DIESEL DETROIT

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