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Service bulletin 030604030

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 id10021799
Published by NHTSA2007-06-21
Manufacturer's number030604030
Manufacturer's date2009-04-01
Replaces030604030G
NHTSA componentFUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS

NHTSA's summary

VARIOUS DRIVEABILITY FUNCTIONS DUE TO CLOGGED FUEL INJECTORS, MIL/SES DTC'S P0171, P0172, P0174, P0300, P1174, P1175. *KB UPDATED 08-15-07. *KB UPDATED 8/4/09. *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

Fuel system, Fuel injection

Trouble codes named

P0171, P0172, P0174, P0300, P1174, P1175

Vehicles listed
HUMMER H22003, 2004, 2005, 2006, 2007
HUMMER H32006, 2007
SAAB 9-7X2005, 2006, 2007

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

Other bulletins for the same vehicles and component
16NA3832020-06-22. Service bulletin. This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
16NA3832020-03-02. Service bulletin. This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
16-NA-3832018-05-21. Service bulletin. This informational bulletin advises of a new fuel injection kit used for decarbonizing the intake valves, and explains how toptier fuels should be used to reduce carbon build up.
04-06-04-051E2018-05-21. Service bulletin. This informational bulletin provides information for maintenance cleaning of the fuel injectors.
04-06-04-051D2018-05-21. Service bulletin. This informational bulletin provides information for maintenance cleaning of the fuel injectors.
040604051D2018-05-07. Service bulletin. This informational bulletin provides information for maintenance cleaning of the fuel injectors.
04-06-04-051D2017-08-15. Service bulletin. This informational bulletin provides information for maintenance cleaning of the fuel injectors.
32802005-04-20. Service bulletin. RUST FOUND IN THE INJECTOR INLET FILTER DURING INJECTOR REPAIRS. *TT