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Service bulletin 990604041B

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 id10004348
Published by NHTSA2003-12-03
Manufacturer's number990604041B
Manufacturer's date2005-03-01
Replaces990604041C
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

FUEL INJECTION PUMP. *TT

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
CHEVROLET B SERIES
CHEVROLET C/K
CHEVROLET G SERIES
CHEVROLET P1999
GMC B SERIES
GMC C/K SERIES
GMC G SERIES
GMC P SERIES

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