WenmarOpen by Wenmar Pro

Service bulletin 040693001

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 id10008497
Published by NHTSA2004-08-03
Manufacturer's number040693001
Manufacturer's date2004-05-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER

NHTSA's summary

INFORMATION ON ISUZU DIESEL ENGINE TURBOCHARGER DIAGNOSTICS. ALSO INCLUDES 2005 ISUZU N-SERIES AND CHEVROLET AND GMC W-SERIES. *MJ

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, Turbocharger or supercharger

Vehicles listed
CHEVROLET W SERIES1999 to 2000
CHEVROLET W-SERIES2001 to 2004
GMC W SERIES1999 to 2000
GMC W-SERIES2001 to 2004
ISUZU N SERIES1998 to 2004

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