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Service bulletin SB-08TS-1

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 id10032679
Published by NHTSA2010-04-28
Manufacturer's numberSB-08TS-1
Manufacturer's date2008-01-02
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING

NHTSA's summary

DETROIT DIESEL: COOLANT LEAKS HAVE BEEN OBSERVED ON CUSTOMER TRUCKS AT THE JOINT BETWEEN THE EGR COOLER OUTLET TUBE AND THE BYPASS TUBE WHICH CONNECTS TO THE THERMOSTAT HOUSING. 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, Cooling system, EGR valve

Vehicles listed
DETROIT DIESEL EFILL

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